Yogesh Vohra

Yogesh Vohra
Professor / Associate Dean

Professor (S), Materials Science & Engineering , School of Engineering 1998 -
Senior Scientist (C), Biomatrix Eng Regen Med (BERM) Center , Biomedical Engineering 2008 -
Professor (P), Physics , College of Arts and Sciences 2011 -
Associate Dean, Physics , College of Arts and Sciences 2011 -
Senior Scientist (C), Center for Exercise Medicine , Cell, Developmental and Integrative Biology (CDIB) 2014 -
Senior Scientist (C), Comprehensive Arthritis, Musculoskeletal, Bone and Autoimmunity Center (CAMBAC) , School of Medicine 2015 -

Overview

Dr, Yogesh Vohra is a Professor and University Scholar in the Department of Physics at UAB. Dr. Vohra is the founding Director of the UAB Center for Nanoscale Materials and Biointegration (CNMB) and also serves as an Associate Dean in the UAB college of Arts and Sciences (CAS). Dr. Vohra is a Chartered Physicist and Fellow of the Institute of Physics, United Kingdom. Dr. Vohra has a BS and MS degree from the University of Delhi and a PhD in physics from the University of Mumbai, India and conducted postdoctoral research at Cornell University in Ithaca, New York and was a postdoctoral Humboldt Fellow at the University of Paderborn in Germany. Dr. Vohra directs the NSF and NASA supported Research Experiences for Undergraduates (REU)-Site program on UAB campus. Dr. Vohra serves as the UAB Campus Director for the NASA-Alabama Space Grant Program (ASGC) program and is the UAB Member Councilor for the Oak Ridge Associate Universities (ORAU).

Selected Publications

Academic Article

Year	Title	Altmetric
2020	Non-equilibrium organosilane plasma polymerization for modulating the surface of PTFE towards potential blood contact applications 2020
2020	Experimental and computational studies on superhard material rhenium diboride under ultrahigh pressures 2020
2020	Room-temperature compression and equation of state of body-centered cubic zirconium 2020
2019	Lattice disorder effect on magnetic ordering of iron arsenides 2019
2019	Non-equilibrium hybrid organic plasma processing for superhydrophobic PTFE surface towards potential bio-interface applications 2019
2019	Magnetic ordering in rare earth metal dysprosium revealed by neutron diffraction studies in a large-volume diamond anvil cell 2019
2019	Novel magneto-plasma processing for enhanced modification of electrospun biomaterials 2019
2019	Observation of two collapsed phases in CaRbF e4 A s4 2019
2019	Possible pressure-induced topological quantum phase transition in the nodal line semimetal ZrSiS 2019
2019	Ultrahigh pressure equation of state of tantalum to 310 GPa 2019
2018	Near-future temperature reduces Mg/Ca ratios in the major skeletal components of the common subtropical sea urchin Lytechinus variegatus 2018
2018	Rapid Growth of Nanocrystalline Diamond on Single Crystal Diamond for Studies on Materials under Extreme Conditions 2018
2018	Computational predictions and microwave plasma synthesis of superhard boron-carbon materials 2018
2018	Superconducting and magnetic phase diagram of RbEuFe4As4 and CsEuFe4As4 at high pressure 2018
2018	Volume collapse phase transitions in cerium-praseodymium alloys under high pressure 2018
2018	Atmospheric pressure plasma jet: A facile method to modify the intimal surface of polymeric tubular conduits 2018
2018	High pressure high temperature devitrification of Fe78B13Si9 metallic glass with simultaneous x-ray structural characterization 2018
2018	Pressure induced densification and compression in a reprocessed borosilicate glass 2018
2017	Optically detected magnetic resonance of nitrogen vacancies in a diamond anvil cell using designer diamond anvils 2017
2017	Superconductivity of barium-VI synthesized via compression at low temperatures 2017
2017	Morphological transition in diamond thin-films induced by boron in a microwave plasma deposition process 2017
2017	Pressure effects in the itinerant antiferromagnetic metal TiAu 2017
2017	White-beam X-ray diffraction and radiography studies on high-boron-containing borosilicate glass at high pressures 2017
2017	Magnetic transition temperatures follow crystallographic symmetry in samarium under high-pressures and low-temperatures 2017
2017	Pressure-induced superconductivity in the giant Rashba system BiTeI 2017
2017	Tuning the electronic and the crystalline structure of LaBi by pressure: From extreme magnetoresistance to superconductivity 2017
2017	High-pressure structural parameters and equation of state of osmium to 207 GPa 2017
2017	Near-zero thermal expansion in magnetically ordered state in dysprosium at high pressures and low temperatures 2017
2016	High pressure structural study of samarium doped CeO2 oxygen vacancy conductor - Insight into the dopant concentration relationship to the strain effect in thin film ionic conductors 2016
2016	Nanocrystalline diamond micro-anvil grown on single crystal diamond as a generator of ultra-high pressures 2016
2016	Metallicity of Ca2Cu6P5 with single and double copper-pnictide layers 2016
2016	Emergent ferromagnetism and T -linear scattering in USb2 at high pressure 2016
2016	High-pressure high-temperature phase diagram of gadolinium studied using a boron-doped heater anvil 2016
2016	Superconducting B i2Te: Pressure-induced universality in the (B i2)m(B i2 T e3)n series 2016
2016	High-pressure high-temperature phase diagram of organic crystal paracetamol 2016
2016	Climate change confers a potential advantage to fleshy Antarctic crustose macroalgae over calcified species. 2016
2015	Strongly coupled electronic, magnetic, and lattice degrees of freedom in LaC o5 under pressure 2015
2015	High Pressure-Temperature Phase Diagram of 1,1-Diamino-2,2-dinitroethylene (FOX-7) 2015
2015	Fibro-porous poliglecaprone/polycaprolactone conduits: Synergistic effect of composition and in vitro degradation on mechanical properties 2015
2015	Biohybrid fibro-porous vascular scaffolds: Effect of crosslinking on properties 2015
2015	Fabrication of diamond based sensors for use in extreme environments 2015
2015	High pressure studies using two-stage diamond micro-anvils grown by chemical vapor deposition 2015
2015	In vitro degradation and cell attachment studies of a new electrospun polymeric tubular graft. 2015
2014	Electrical resistivity of single crystals of LaFeAsO under applied pressure 2014
2014	Structural phase stability in nanocrystalline titanium to 161 GPa 2014
2014	Polymorphism in paracetamol: Evidence of additional forms IV and v at high pressure 2014
2014	Magnetic ordering temperatures in rare earth metal dysprosium under ultrahigh pressures 2014
2014	Rapid growth of nanostructured diamond film on silicon and Ti-6Al-4V alloy substrates 2014
2014	High pressure effects on the superconductivity in rare-earth-doped CaFe2As2 2014
2014	Persistent non-metallic behavior in Sr2IrO4 and Sr3Ir2O7 at high pressures 2014
2014	Pressure-induced superconductivity and structural transitions in Ba(Fe 0.9Ru0.1)2As2 2014
2014	Structural and magnetic phase transitions in gadolinium under high pressures and low temperatures 2014
2013	Neutron diffraction and electrical transport studies on magnetic ordering in terbium at high pressures and low temperatures 2013
2013	Pressure-induced unconventional superconducting phase in the topological insulator Bi2Se3 2013
2013	Equation of state and electrical resistivity of the heavy fermion superconductor CeCoIn5 to 51 GPa 2013
2013	Magnetism and structural distortions in uranium sulfide under pressure 2013
2013	Titanium oxide nanoparticle instillation induces inflammation and inhibits lung development in mice 2013
2013	Growth Morphology of Boron Doped Single Crystal Diamond 2013
2013	Nano-TiO2 particles impair adhesion of airway epithelial cells to fibronectin 2013
2013	High pressure low temperature studies on 1-2-2 iron-based superconductors using designer diamond cells 2013
2013	Nanostructured diamond coatings for orthopaedic applications 2013
2013	Structural Properties of Lanthanides at Ultra High Pressure 2013
2013	Synthesis and characterization of boron-doped single crystal diamond 2013
2012	Pressure-induced superconductivity in Ba0.5Sr 0.5Fe2As2 2012
2012	1,1-diamino-2,2-dinitroethylene under high pressure-temperature 2012
2012	Pressure Induced Superconductivity in Ba0.5Sr0.5Fe2As2 2012
2012	Structural phase transitions in yttrium under ultrahigh pressures 2012
2012	High pressure transport studies of the LiFeAs analogs CuFeTe 2 and Fe 2As 2012
2012	Recent advances in the development of GTR/GBR membranes for periodontal regeneration - A materials perspective 2012
2012	Simultaneous measurement of pressure evolution of crystal structure and superconductivity in FeSe 0.92 using designer diamonds 2012
2012	High pressure melting curve of tin measured using an internal resistive heating technique to 45 GPa 2012
2012	Neutron diffraction and electrical transport studies on the incommensurate magnetic phase transition in holmium at high pressures 2012
2012	Suppression of magnetism and development of superconductivity within the collapsed tetragonal phase of Ca 0.67Sr 0.33Fe 2As 2 under pressure 2012
2012	In vitro studies on the effect of particle size on macrophage responses to nanodiamond wear debris 2012
2012	High pressure transport properties of the topological insulator Bi 2Se 3 2012
2011	Magnetic and structural phase transitions in erbium at low temperatures and high pressures 2011
2011	Distinct superconducting states in the pressure-induced metallic structures of the nominal semimetal Bi4Te3 2011
2011	Biodegradable polyurethanes: Comparative study of electrospun scaffolds and films 2011
2011	Structural phase transitions in EuFe2As2 superconductor at low temperatures and high pressures 2011
2011	Conducting boron-doped single-crystal diamond films for high pressure research 2011
2011	High pressure phase transitions in the rare earth metal erbium to 151GPa 2011
2011	Low-temperature electrical resistivity of praseodymium at pressures up to 120 GPa 2011
2011	Compression of bulk metallic glass Zr57Cu15.4Ni 12.6Al10Nb5 to 122GPa 2011
2011	Structural Phase Transformations in Iron-Chalcogen under High Pressures 2011
2011	Electrospinning of Biosyn®-based tubular conduits: Structural, morphological, and mechanical characterizations 2011
2011	Engineering an antiplatelet adhesion layer on an electrospun scaffold using porcine endothelial progenitor cells 2011
2011	Interplay between magnetism, structure, and strong electron-phonon coupling in binary FeAs under pressure 2011
2011	High-pressure phase transitions in rare earth metal thulium to 195 GPa 2011
2011	Phase transition and superconductivity of SrFe2As2 under high pressure 2011
2011	Search for pressure-induced superconductivity in CeFeAsO and CeFePO iron pnictides 2011
2011	Plasma etching of cavities into diamond anvils for experiments at high pressures and high temperatures 2011
2011	Mesenchymal stem cell responses to bone-mimetic electrospun matrices composed of polycaprolactone, collagen I and nanoparticulate hydroxyapatite 2011
2011	Improved adhesion of ultra-hard carbon films on cobalt-chromium orthopaedic implant alloy 2011
2010	In situ electrical conductivity and Raman study of C60 tetragonal polymer at high pressures up to 30 GPa 2010
2010	Synthesis and characterization of multilayered diamond coatings for biomedical implants 2010
2010	Collapsed tetragonal phase and superconductivity of BaFe2As 2 under high pressure 2010
2010	Formation of collapsed tetragonal phase in EuCo2As2 under high pressure 2010
2010	Anomalous compressibility effects and superconductivity of EuFe 2As2 under high pressures 2010
2010	An in vitro regenerated functional human endothelium on a nanofibrous electrospun scaffold 2010
2010	Structural and magnetic phase transitions in NdCoAsO under high pressures 2010
2010	Low temperature amorphization and superconductivity in FeSe single crystals at high pressures 2010
2010	Two ply tubular scaffolds comprised of proteins/poliglecaprone/ polycaprolactone fibers 2010
2010	In vitro dissolution and mechanical behavior of c-axis preferentially oriented hydroxyapatite thin films fabricated by pulsed laser deposition 2010
2009	A biomimetic tubular scaffold with spatially designed nanofibers of Protein/PDS® bio-blends 2009
2009	New correlated electron physics from new materials 2009
2009	Electrospinning of novel biodegradable poly(ester urethane)s and poly(ester urethane urea)s for soft tissue-engineering applications 2009
2009	Rapid dissolution of shells of weakly calcified Antarctic benthic macroorganisms indicates high vulnerability to ocean acidification 2009
2009	Structural stability and compressibility of group IV transition metals-based bulk metallic glasses under high pressure 2009
2009	Nanomechanical properties of electrospun composite scaffolds based on polycaprolactone and hydroxyapatite 2009
2009	High pressure superconductivity in iron-based layered compounds studied using designer diamonds 2009
2009	Pressure-induced reversible amorphization in superconducting compound FeSe0.5Te0.5 2009
2009	In Vitro biodegradation of designed tubular scaffolds of electrospun protein/polyglyconate blend fibers 2009
2009	An electrical microheater technique for high-pressure and high-temperature diamond anvil cell experiments 2009
2009	Multivariable study on homoepitaxial diamond growth using isotopically enriched carbon-13 gas mixtures 2009
2008	High speed continuous and interrupted dry turning of A390 Aluminum/Silicon Alloy using nanostructured diamond coated WC-6 wt.% cobalt tool inserts by MPCVD 2008
2008	Modeling of nitrogen/diborane/methane/hydrogen plasma for nanocrystalline diamond growth: Comparison with experimental data 2008
2008	Tribological properties of undoped and boron-doped nanocrystalline diamond films 2008
2008	Effect of pressure on the superconducting critical temperature of La[O 0.89F0.11]FeAs and Ce[O0.88F 0.12]FeAs 2008
2008	Adhesion of nanostructured diamond film on a copper-beryllium alloy 2008
2008	Mesenchymal stem cell interaction with ultra-smooth nanostructured diamond for wear-resistant orthopaedic implants 2008
2008	PMSE 347-PDS/NanoHA biocomposite nanofibers by electrospinning: Structure-property relationship 2008
2008	Preliminary tribological evaluation of nanostructured diamond coatings against ultra-high molecular weight polyethylene 2008
2008	Preliminary tribological evaluation of nanostructured diamond coatings against ultra-high molecular weight polyethylene 2008
2008	Synthesis and mechanical wear studies of ultra smooth nanostructured diamond (USND) coatings deposited by microwave plasma chemical vapor deposition with He/H2/CH4/N2 mixtures 2008
2008	Growth chemistry for the fabrication of designer diamonds for high pressure research 2008
2007	Symmetry lowering under high pressure: Structural evidence for f -shell delocalization in heavy rare earth metal terbium 2007
2007	Functionally graded electrospun scaffolds with tunable mechanical properties for vascular tissue regeneration 2007
2007	Finite-element modeling of stresses and strains in a diamond anvil cell device: Case of a diamond-coated rhenium gasket 2007
2007	Electrical conductivity of the lower-mantle ferropericlase across the electronic spin transition 2007
2007	Cubic Laves ferromagnet Tb Ni2 Mn investigated through ambient-pressure magnetization and specific heat and high pressure ac magnetic susceptibility 2007
2007	An electrospun triphasic nanofibrous scaffold for bone tissue engineering 2007
2007	Accelerating aging of zirconia femoral head implants: Change of surface structure and mechanical properties 2007
2007	Role of nitrogen in the homoepitaxial growth on diamond anvils by microwave plasma chemical vapor deposition 2007
2007	Nanostructured biocomposite scaffolds based on collagen coelectrospun with nanohydroxyapatite 2007
2007	Crystallographic texture in pulsed laser deposited hydroxyapatite bioceramic coatings 2007
2006	Structure-dependent ferromagnetism in Au4 V studied under high pressure 2006
2006	Synthesis of ultrasmooth nanostructured diamond films by microwave plasma chemical vapor deposition using a He/H2/CH4/N2 gas mixture 2006
2006	Mechano-morphological studies of aligned nanofibrous scaffolds of polycaprolactone fabricated by electrospinning 2006
2006	Physical and mechanical properties of C60 under high pressures and high temperatures 2006
2006	Nanostructured biomaterials for regenerative medicine 2006
2006	Calibration of an isotopically enriched carbon-13 layer pressure sensor to 156 GPa in a diamond anvil cell 2006
2006	PCL/HA Nanocomposite fibers by electrospinning: structure-property relationship 2006
2006	Observation of complete regular trivalent rare earth sequence in heavy lanthanide metal holmium under high pressure 2006
2006	Effect of surface oxides and intermetallics on nanostructured diamond coating of nitinol 2006
2006	Electrospun bioactive nanocomposite scaffolds of polycaprolactone and nanohydroxyapatite for bone tissue engineering 2006
2006	Mesenchymal stem cell adhesion and spreading on microwave plasma-nitrided titanium alloy 2006
2006	Ultra-smooth nanostructured diamond films deposited from He/H 2/CH4/N2 microwave plasmas 2006
2005	Analysis of anisotropic compression of uranium under high pressures: A computational and experimental overview 2005
2005	Biphasic and preferentially oriented microcrystalline calcium phosphate coatings: In Vitro and in Vivo studies 2005
2005	High-pressure magnetic susceptibility experiments on the heavy lanthanides Gd, Tb, Dy, Ho, Er, and Tm 2005
2005	Measurement of the molar fraction of ¹³C in diamond films using Raman and Rutherford scattering - An undergraduate student laboratory experience 2005
2005	Nanoindentation on porous bioceramic scaffolds for bone tissue engineering 2005
2005	Nanostructured diamond coated CoCrMo alloys for use in biomedical implants 2005
2005	Control of phase composition in hydroxyapatite/tetracalcium phosphate biphasic thin coatings for biomedical applications 2005
2005	Multifunctional tissue scaffolds based on electrospun nanofibers 2005
2005	Materials progress: Diamonds grown 100 times faster via plasma microwaves 2005
2005	Simultaneous electrical and X-ray diffraction studies on neodymium metal to 152 GPa 2005
2005	Low temperature growth of nanostructured diamond on quartz spheres 2005
2005	Optical defect centers and surface morphology of isotopically enriched diamond layers in designer diamond anvils 2005
2005	Crystal grain growth at the α-uranium phase transformation in praseodymium 2005
2005	University of Alabama receives grant for nanomaterial jaw implants 2005
2004	Mesenchymal stem cell adhesion and spreading on nanostructured biomaterials 2004
2004	Pure isotopic carbon senses pressure in diamond-anvil cell 2004
2004	Crystal structure and compressibility of FePt nanoparticles under high pressures and high temperatures 2004
2004	Properties of nanocrystalline diamond thin films grown by MPCVD for biomedical implant purposes 2004
2004	Mechanical wear behavior of nanocrystalline and multilayer diamond coatings on temporomandibular joint implants 2004
2004	Isotopically pure ¹³C layer as a stress sensor in a diamond anvil cell 2004
2004	Distortion of alpha-uranium structure in praseodymium metal to 311 GPA 2004
2004	Pressure-induced metallization of the Mott insulator MnO 2004
2004	Electrical measurements on praseodymium metal to 179 GPa using designer diamond anvils 2004
2003	Effect of nitrogen addition on the morphology and structure of boron-doped nanostructured diamond films 2003
2003	Surface crystalline phases and nanoindentation hardness of explanted zirconia femoral heads 2003
2003	Isotopically enriched designer-diamond anvil 2003
2003	Bioceramic hydroxyapatite at high pressures 2003
2003	Bond strength and durability of thin calcium phosphate coatings on implants. 2003
2003	Studies of TMJ implant surfaces. 2003
2003	Magnetic susceptibility measurements at high pressure using designer diamond anvils 2003
2003	Structural and mechanical properties of nanostructured metalloceramic coatings on cobalt chrome alloys 2003
2003	Raman spectroscopy and nanoindentation hardness studies on hexagonal boron nitride subjected to high pressures 2003
2002	Nanostructured diamond film deposition on curved surfaces of metallic temporomandibular joint implant 2002
2002	Very high growth rate chemical vapor deposition of single-crystal diamond 2002
2002	X-ray diffraction and nanoindentation studies of nanocrystalline graphite at high pressures 2002
2002	Effect of band filling on the pressure-induced structural transition in Mo-Re alloys 2002
2002	Nanostructured Ceramics for Biomedical Implants 2002
2002	Structural and electrical properties of beryllium metal to 66 GPa studied using designer diamond anvils 2002
2002	Nanoindentation hardness and adhesion investigations of vapor deposited nanostructured diamond films 2002
2002	Gas-phase thermodynamic models of nitrogen-induced nanocrystallinity in chemical vapor-deposited diamond 2002
2002	Wear testing of diamond coatings on titanium for TMJ implants. 2002
2001	Low-Temperature Growth of Nanostructured Diamond Films 2001
2001	Single-Wall Carbon Nanotubes under High Pressures to 62 GPa Studied Using Designer Diamond Anvils 2001
2001	Novel γ-phase of titanium metal at megabar pressures 2001
2001	Nitrogen incorporation in CVD diamond 2001
2000	Electrical and mechanical properties of C70 fullerene and graphite under high pressures studied using designer diamond anvils 2000
2000	Cleaning and Heat-Treatment Effects on Unalloyed Titanium Implant Surfaces 2000
2000	Nanoindentation hardness and atomic force microscope imaging studies of pressure-quenched zirconium metal 2000
2000	Epitaxial diamond encapsulation of metal microprobes for high pressure experiments 2000
2000	Nanoindentation and x-ray diffraction studies of pressure-induced amorphization in C-70 fullerene 2000
2000	Multilayer nanocrystalline/microcrystalline diamond films studied by laser reflectance interferometry 2000
2000	Nitrogen incorporation in diamond films homoepitaxially grown by chemical vapour deposition 2000
2000	Interfacial oxide and carbide phases in the deposition of diamond films on beryllium metal 2000
2000	Interfacial adhesion and toughness of nanostructured diamond coatings 2000
2000	Microcrystalline and nanocrystalline diamond film deposition on cobalt chrome alloy 2000
2000	Phase transformations and equation of state of praseodymium metal to 103 GPa 2000
2000	α-uranium phase in compressed neodymium metal 2000
1999	High pressure phase transformations in neodymium studied in a diamond anvil cell using diamond-coated rhenium gaskets 1999
1999	Effect of nitrogen addition on the microstructure and mechanical properties of diamond films grown using high-methane concentrations 1999
1999	Ultrapressure equation of state of cerium metal to 208 GPa 1999
1999	Multiple twinning and nitrogen defect center in chemical vapor deposited homoepitaxial diamond 1999
1999	Nitrogen defect concentration in chemical vapor deposited homoepitaxial diamond at high temperatures 1999
1999	Nitrogen-induced nanocrystallinity of CVD diamond films on Ti-6Al-4V alloys 1999
1999	Structural and electronic transitions in ytterbium metal to 202 GPa 1999
1998	High density plasma processing of nanostructured diamond films on metals 1998
1998	In situ diagnostics of film thickness and surface roughness of diamond films on a Ti-6Al-4V alloy by optical pyrometry 1998
1998	Effect of surface treatment on unalloyed titanium implants: Spectroscopic analyses 1998
1998	Growth and Modification of Diamond Anvils by Chemical Vapor Deposition 1998
1998	High Pressure-High Temperature Studies of Precursors Used in the Synthesis of C3N4 1998
1998	Mechanical properties and quality of diamond films synthesized on Ti-6Al-4V alloy using the microwave plasmas of CH4/H2 and CO/H2 systems 1998
1998	Phase Transformations in Heavy Rare Earth Metal Lutetium to 270 GPa 1998
1998	Phase transformation in lutetium metal at 88 GPa 1998
1998	Theoretical and Experimental Studies on Gadolinium at Ultra High Pressure 1998
1997	Pressure-induced blueshift of Nd³⁺ fluorescence emission in YAIO3: Near infrared pressure sensor 1997
1997	Evaluation of buffer layers for hot filament chemical vapor deposition diamond films on silicon substrates 1997
1997	Resonance Raman and photoluminescence investigations of micro-twins in homoepitaxially grown chemical vapor deposited diamond 1997
1997	Homoepitaxial diamond films on diamond anvils with metallic probes: The diamond/metal interface up to 74 GPa 1997
1997	Spatially resolved in situ diagnostics for plasma-enhanced chemical vapor deposition film growth 1997
1996	Diffraction study of actinides under pressure 1996
1996	Fluorescence emission from high purity synthetic diamond anvil to 370 GPa 1996
1996	Phase transformation in Mo-Ru alloy induced by laser heating at high pressures 1996
1996	Liu and Vohra Reply. 1996
1996	A micro-Raman investigation of high-pressure quenched graphite 1996
1996	Photoluminescence and x-ray-diffraction studies on Sm-doped yttrium aluminum garnet to ultrahigh pressures of 338 GPa 1996
1996	Pressure-induced amorphization in gadolinium scandium gallium garnet by x-ray diffraction and spectroscopic studies 1996
1996	Diffraction study of actinides under pressure 1996
1996	High-pressure and high-temperature studies on oxide garnets 1996
1996	Liu and Vohra reply 1996
1996	Micro-raman stress investigations and X-ray diffraction analysis of poly crystalline diamond (PCD) tools 1996
1996	Raman microprobe assessment of low-pressure chemical vapor deposition-grown 4H-SiC epilayers 1996
1996	Raman spectroscopy of CVD-grown 4H-SiC epilayers 1996
1995	Erratum: G tensor for substitutional nitrogen in diamond (Physical Review B (1995) 51, 13, (8688)) 1995
1995	Fluorescence emission from high purity synthetic diamond anvil to 370 GPa 1995
1995	High density plasma processing of diamond films on titanium: Residual stress and adhesion measurements 1995
1995	Homoepitaxial diamond film deposition on a brilliant cut diamond anvil 1995
1995	Pressure-concentration (P-X) diagram for the Ce-Th alloy system 1995
1995	Erratum: g tensor for substitutional nitrogen in diamond 1995
1995	A micro-Raman investigation of high-pressure quenched graphite 1995
1995	Crystal grain growth during phase transformation in cerium metal at high pressure 1995
1995	Cubic-to-rhombohedral transformation in boron nitride induced by laser heating: In situ Raman-spectroscopy studies 1995
1994	Nitrogen in the isotopically enriched ¹²C diamond 1994
1994	Sm:YAG optical pressure sensor to 180 GPa:Calibration and structural disorder 1994
1994	Phase transformation in titanium induced by laser heating at high pressure 1994
1994	Defect center in diamond thin films observed by micro-Raman and photoluminescence studies 1994
1994	G tensor for substitutional nitrogen in diamond 1994
1994	Metastable phases of carbon during fracture of diamond under ultrahigh compressive stresses 1994
1994	Raman modes of 6H polytype of silicon carbide to ultrahigh pressures: A comparison with silicon and diamond 1994
1994	Ultrahigh-pressure phase transformations in the Ce0.43Th0.57 alloy: Implications for f-electron behavior under compression 1994
1993	Onset of f-bonding in light actinide and lanthanide metals at ultrahigh pressures 1993
1993	Phase stability and the equation of state of the transition-metal alloy Mo-Re at high pressure 1993
1993	Pressure dependence of the fluorescence spectra of the Sm: doped YAG to 73 GPa 1993
1993	Thorium under strong compression-a test case for the evaluation of eos data by different forms and procedures 1993
1992	Isotopically pure diamond anvil for ultrahigh pressure research 1992
1992	Onset of structural transformation in thorium metal at high pressures 1992
1992	Synchrotron X-ray diffraction studies on the transition metal alloy MoRe under high pressures 1992
1992	Thorium: Phase transformations and equation of state to 300 gpa 1992
1991	Generating near-earth-core pressures with type-IIa diamonds 1991
1991	The closing diamond anvil optical window in multimegabar research 1991
1991	A new ultra-high pressure phase in samarium 1991
1991	5f bonding in thorium metal at extreme compressions: Phase transitions to 300 GPa 1991
1991	High-pressure optical studies on sulfur to 121 GPa: Optical evidence for metallization 1991
1991	Phase transformations in cerium and thorium metals at ultra high pressures 1991
1991	Temperature dependence of the -bcc phase transition in zirconium metal 1991
1991	The Effect Of Nonhydrostaticity On Measuring The Pressure In Metals By Energy Dispersive X-Ray Diffraction In The Diamond Anvil Cell 1991
1990	Miniaturization techniques for obtaining static pressures comparable to the pressure at the center of the earth: X-ray diffraction at 416 GPa 1990
1990	Optical properties of diamond at pressures of the center of Earth 1990
1990	Optical reflectivity and amorphization of GaAs during decompression from megabar pressures 1990
1990	Comment on "Ruby at high pressure. I. Optical line shifts to 156 GPa" 1990
1990	Phase transitions and equations of state at multimegabar pressures 1990
1990	Synthetic diamonds for multimecabar pressures in the diamond anvil cell 1990
1990	Bcc lead at 109 GPa: Diffraction studies to 208 GPa 1990
1990	Comment on Ruby at high pressure. I. Optical line shifts to 156 GPa 1990
1990	Crystal structures of group IVa metals at ultrahigh pressures 1990
1990	Experimental study of the crystal stability and equation of state of Si to 248 GPa 1990
1990	New high-pressure phase transition in zirconium metal 1990
1990	Optical response of very high density solid oxygen to 132 GPa 1990
1990	Pressure dependence of the 4T2 and 4T1 absorption bands of ruby to 35 GPa 1990
1990	Static compression of metals Mo, Pb, and Pt to 272 GPa: Comparison with shock data 1990
1989	Multimegabar pressures using synthetic diamond anvils 1989
1989	Evidence for the insulator-metal transition in xenon from optical, x-ray, and band-structure studies to 170 GPa 1989
1989	Near-infrared photoluminescence bands in diamond 1989
1989	Near-infrared photoluminescence due to nitrogen platelets in type Ia diamonds 1989
1989	Structural phase transitions in GaAs to 108 GPa 1989
1989	Structural phase transitions in InSb to 66 GPa 1989
1989	Tin at high pressure: An energy-dispersive x-ray-diffraction study to 120 GPa 1989
1988	Pressure profiles at multimegabar pressures in a diamond anvil cell using x-ray diffraction 1988
1988	Production of megabaric pressures by means of synthetic diamonds 1988
1988	Proposed dedicated high pressure beam lines at chess 1988
1988	High-pressure x-ray diffraction study of CeO2 to 70 GPa and pressure-induced phase transformation from the fluorite structure 1988
1988	Optical absorption and reflectivity measurements at ultra high pressures 1988
1988	Static pressure of 255 GPa (2.55 Mbar) by X-Ray diffraction: Comparison with extrapolation of the ruby pressure scale 1988
1987	Polychromatic x-ray beam produced by a wiggler: A new dimension in x-ray diffraction at megabar pressures 1987
1987	Hcp to fcc transition in silicon at 78 GPa and studies to 100 GPa 1987
1987	High-pressure studies of NaH to 54 GPa 1987
1987	High-pressure x-ray diffraction studies on rhenium up to 216 GPa (2.16 Mbar) 1987
1987	High-pressure x-ray-diffraction and optical-absorption studies of NH4I to 75 GPa 1987
1987	Phase transitions in GaSb to 110 GPa (1.1 Mbar) 1987
1987	Pressure-induced metallization of BaSe 1987
1987	Synthetic diamonds produce pressure of 125 GPa (1.25 Mbar) 1987
1986	Microcollimated energy-dispersive x-ray diffraction apparatus for studies at megabar pressures with a synchrotron source 1986
1986	Crystal structures at megabar pressures determined by use of the Cornell synchrotron source 1986
1986	High-pressure phase transitions and the equations of state of BaS and BaO 1986
1986	Phase transitions near 1 Mbar 1986
1986	Phase transitions near 1 Mbar 1986
1986	Phase-Transition studies of germanium to 1.25 Mbar 1986
1985	Band-overlap metallization of cesium iodide 1985
1985	High-pressure phase transition in CsCl at VV0=0.53 1985
1985	High-pressure phase transitions and equation of state of the III-V compound InAs up to 27 GPa 1985
1985	Instability of the CsCl structure in ionic solids at high pressures 1985
1985	The madelung constant for the tetragonal distortion of the cscl lattice 1985
1984	On the high-pressure phase transition in beryllium metal 1984
1984	Some high-pressure x-ray diffraction studies using beryllium gasketing on a diffractometer with rotating anode x-ray source 1984
1984	Structure of the distorted fcc high-pressure phase of the trivalent rare-earth metals 1984
1983	F bonding in praseodymium under high pressure 1983
1983	On the initial softness in the equation of state of the d band metals 1983
1982	5f localization in actinide elements at high temperatures 1982
1982	Evidence for a soft phonon mode and a new structure in rare-earth metals under pressure 1982
1982	High pressure phase transformations in yttrium and scandium: Relation to rare earths and actinides crystal structures 1982
1982	High-pressure phase transformation in scandium 1982
1982	Omega phase in materials 1982
1982	β-ω transformation under pressure ans stacking soliton model for diffuse omega phase in TiV alloys 1982
1981	High pressure studies on a prototype omega forming alloy system 1981
1981	Structural Phase Transitions in Yttrium under Pressure 1981
1981	Structural aspects of alpha-omega transformation in group IV transition metals and alloys 1981
1980	Direct evidence of intermediate state during alpha-omega transformation in TiV alloy 1980
1979	Electronic structure of omega phase of titanium and zirconium 1979
1979	Electronic basis for omega phase stability in group IV transition metals and alloys 1979
1978	Kinetics of phase transformations in Ti, Zr and Hf under static and dynamic pressures 1978
1977	Impurity effects and reaction kinetics of the pressure-induced α → ω transformation in Ti 1977

Chapter

Year	Title	Altmetric
2017	Ceramic Coatings in Load-Bearing Articulating Joint Implants. 315-347. 2017
2016	Ceramic Coatings in Load-Bearing Articulating Joint Implants 2016
2013	Nanostructured Diamond for Orthopaedic Implants 2013
2012	Functionally-Graded Biomimetic Vascular Grafts for Enhanced Tissue Regeneration and Bio-integration. 235-273. 2012
2012	Advances in customized diamond anvils. 61-79. 2012

Research Overview

Dr. Vohra’s research expertise is in the properties of materials under extreme conditions of pressures and temperatures, x-ray and optical characterization of materials, synthetic diamond growth and applications, and plasma synthesis and processing of materials. Dr. Vohra has published over 350 original research papers in the international journals in physics, materials science and biomaterials. Dr. Vohra is a co-inventor of several leading patents in the growth of single crystal diamonds and nano-diamonds that have applications in high pressure diamond anvil devices and protective wear-resistant and biocompatible coatings on medical implants.

Principal Investigator On

Shear Strength and Phase Transformations in Transition Metals and Their Diborides Under Terapascal Pressures awarded by NSF - National Science Foundation 2019 - 2022

Rll Track 1: CPU2AL: Connecting the Plasma Universe to Plasma Technology in AL awarded by UNIVERSITY OF ALABAMA (HUNTSVILLE) 2017 - 2022

Doctoral Fellowships in Interdisciplinary Materials Science Program at the University of Alabama at Birmingham awarded by Department of Education 2018 - 2021

Studies on Rare Earth Metals and Alloys under Terapascal Pressures in Support of the Stockpile Stewardship Program awarded by Department of Energy 2019 - 2021

REU-Site: Regional Initiative to Promote Undergraduate Participation in Experimental and Computational Materials Research awarded by NSF - National Science Foundation 2018 - 2021

Scholarship/Fellowship, Education and Research Program Under NASA Alabama Space Grant Consortium awarded by UNIVERSITY OF ALABAMA (HUNTSVILLE) 2015 - 2021

Novel Metastable Phases and Kinetic Studies in Transition Metals and Alloys under Terapascal Pressures awarded by NSF - National Science Foundation 2016 - 2020

High-Pressure-Induced Structural Changes in Silicate Glasses awarded by University of Tennessee, Knoxville 2015 - 2019

Paris-Edinburgh (PE) Cell Testing of Vitreous Silicates awarded by UT-Battelle 2019

MRI: Acquisition of a Multipurpose X-ray Diffractometer for Interdisciplinary Materials Research and Education awarded by NSF - National Science Foundation 2017 - 2019

Doctoral Fellowships in Nanoscale Materials and Computational Physics at the University of Alabama at Birmingham awarded by Department of Education 2017 - 2019

Doctoral Fellowships in Nanoscale Materials and Computational Physics at the University of Alabama at Birmingham awarded by Department of Education 2015 - 2019

Studies on Rare Earth Metals and Alloys Under Extreme Conditions in Support of the Stockpile Stewardship Program awarded by Department of Energy 2016 - 2019

REU-Site: Regional Initiative to Promote Undergraduate Participation in Experimental and Computational Materials Research awarded by NSF - National Science Foundation 2015 - 2019

Paris Edinburgh - Diamond Anvil Cell (PE-DAC) Characterization of Three Materials awarded by UT-Battelle 2017 - 2018

CDAC - High Pressure Studies on Iron-Based Superconducting Materials and Bulk Metallic Glasses awarded by Carnegie Institution of Washington 2013 - 2018

ASCENT: Alabama Space Grant Community College ENgineering Transfer Program awarded by UNIVERSITY OF ALABAMA (HUNTSVILLE) 2017

Enabling Diamond-Based High Tech Industry in Alabama awarded by ALABAMA DEPARTMENT OF COMMERCE 2015 - 2017

Studies on Rare Earth Metals and Alloys Under Extreme Conditions in Support of the Stockpile Stewardship Program awarded by Department of Energy 2013 - 2017

Doctoral Fellowships in Nanoscale Materials and Computational Physics at the University of Alabama at Birmingham awarded by Department of Education 2012 - 2016

PFI: BIC-Innovations in Chemical Vapor Deposited Diamond Crystals and Nanostructured Diamond Coatings awarded by NSF - National Science Foundation 2013 - 2016

Private Grant awarded by VIVO BIOSCIENCES, INC. 2014 - 2016

REU-Site: Regional Initiative to Promote Undergraduate Participation in Experimental and Computational Materials Research awarded by NSF - National Science Foundation 2011 - 2016

Scholarship/Fellowship, Education and Research Program under NASA Alabama Space Grant Consortium awarded by UNIVERSITY OF ALABAMA (HUNTSVILLE) 2010 - 2015

Private Grant awarded by VISTA ENGINEERING, INC. 2011 - 2015

Bioengineering Research Partnership in Total Joint Replacements awarded by National Institute of Arthritis & Musculoskeletal & Skin Diseases/NIH/DHHS 2009 - 2015

Structural and Magnetic Studies on Heavy Rare Earth Metals at High Pressures Using Designer Diamonds awarded by Department of Energy 2010 - 2014

Private Grant awarded by Battelle 2013

Chemical Vapor Deposited (CVD) Diamond Processes for Laser Inertial Fusion Energy (LIFE) Fusion Fuel Targets awarded by LAWRENCE LIVERMORE NATIONAL SECURITY, LLC. 2011 - 2013

Nanotechnology in Biosensors and Bioengineering awarded by National Institute of Biomedical Imaging and Bioengineering/NIH/DHHS 2007 - 2013

Doctoral Fellowships in Nanoscale Materials and Computational Physics at the University of Alabama at Birmingham awarded by Department of Education 2009 - 2013

Carnegie/Doe Alliance Center for High Pressure Science and Technology awarded by Carnegie Institution of Washington 2009 - 2013

Private Grant awarded by Battelle 2012

Separation and Metallization of Carbon Nanotubes (CNT) by Chemical Modification and Electroless Plating awarded by NASA - National Aeronautics & Space Administration 2012

Synthetic Diamond Encapsulation of Electrical Microprobes for High-Pressure, High-Temperature Experiments awarded by LAWRENCE LIVERMORE NATIONAL SECURITY, LLC. 2009 - 2012

Enhancing Faculty Recruitment in Nanoscale Sciences for Biomedical Research awarded by National Institute of Biomedical Imaging and Bioengineering/NIH/DHHS 2009 - 2012

Microstructural Effects in the Phase Transformations in Metals at High Pressures awarded by NSF - National Science Foundation 2007 - 2012

REU-Site: Regional Initiative to Promote Undergraduate Participation in Experimental and Computational Materials Research awarded by NSF - National Science Foundation 2007 - 2012

Private Grant awarded by VISTA ENGINEERING, INC. 2009 - 2011

UAB-Alabama Space Grant Consortium Undergraduate Scholarships awarded by UNIVERSITY OF ALABAMA (HUNTSVILLE) 2005 - 2011

Investigator On

The Effects of Ocean Adidification and Rising Sea Surface Temperatures on Shallow-Water Benthic Organisms in Antarctica awarded by NSF - National Science Foundation 2011 - 2016

Teaching Overview

Dr. Yogesh Vohra has taught both introductory physics undergraduate courses and graduate level physics courses at the University of Alabama at Birmingham. The graduate level courses taught include solid state physics and nanoscale science and applications course. Dr. Yogesh Vohra is actively involved in mentoring of undergraduate and graduate students in research including training at national facilities like the Advanced Photon Source, Argonne National Laboratory and Spallation Neutron Source at the Oak Ridge National Laboratory.