Matt Pharr

Associate Professor - Mechanical Engineering

J. Mike Walker '66 Faculty Fellow

Phone: (979) 458-3114


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2022 – Present             Associate Professor,  Department of Mechanical Engineering, (courtesy) Department of Materials Science & Engineering, Texas A&M University

2016 – 2022                 Assistant Professor, Department of Mechanical Engineering, (courtesy) Department of Materials Science & Engineering, Texas A&M University

2014 – 2016                 Postdoctoral Research Associate, Department of Materials Science & Engineering, University of Illinois at Urbana-Champaign



2014 Ph.D. in Engineering Sciences, Harvard University

2010 S.M. in Engineering Sciences, Harvard University
2008 B.S. in Mechanical Engineering & B.A. in Materials Science, Rice University


Research Interests

Dr. Pharr's current research focuses on materials for energy storage and conversion, deformation and fracture of soft materials, mechanics of flexible/wearable electronic devices, mechanics of irradiated materials, coupled electro-chemo-mechanics, and mass transport in materials.




†denotes equal contribution to the manuscript #denotes corresponding author
Published Journal Papers

  • Umme Zakira#, Aayushi Bajpayee, Matt Pharr, Sarbajit Banerjee, and Bjorn Birgisson. “Grid Nanoindentation on Calcium Sulfoaluminate (CSA)-Kaolinite Pastes.” Construction and Building Materials 335, 127523 (2022).
  • Nina Girard-Perier, Sylvain R. A. Marque#, Nathalie Dupuy#, Magalie Claeys-Bruno, Fanny Gaston, Samuel Dorey#, Leonard S. Fifield#, Yelin Ni, Donghui Li, Witold Fuchs, Mark Murphy, Suresh Pillai, Matt Pharr, Larry Nichols “Effects of X-rays, Electron beam, and Gamma Irradiation on Chemical and Physical Properties of EVA Multilayer Films.” Frontiers in Chemistry 10, 888285 (2022).
  • Nathalie Dupuy#, Sylvain R.A. Marque#, Leonard S. Fifield, Matt Pharr, David Staack, Suresh D. Pillai, Larry Nichols, Mark K. Murphy, and Samuel Dorey. “Supplementing Gamma Sterilization with X-Ray and E-Beam Technologies: An International Industry and Academia Collaboration.” BioProcess International 20 (3), 2-6 (2022).
  • Min Huang, Md Kamrul Hasan, Kavita Rathore, Md Adbullah Hil Baky, John Lassalle, Jamie Kraus, Matthew Burnette, Christopher Campbell, Kunpeng Wang, Howard Jemison, Suresh Pillai, Matt Pharr, and David Staack#. “Plasma Generated Ozone and Reactive Oxygen Species for Point of Use PPE Decontamination System.” PLOS ONE 17 (2), e0262818 (2022).
  • Omid Zargar, Matt Pharr, and Anastasia Muliana#. “Modeling and Simulation of Creep Response of Sorghum Stems: Towards an Understanding of Stem Geometrical and Material Variations.” Biosystems Engineering 217, 1-17 (2022).
  • Omid Zargar, Qing Li, Chiedu Nwaobi, Matt Pharr, Scott A Finlayson, Anastasia Muliana#. “Thigmostimulation alters anatomical and biomechanical properties of bioenergy sorghum stems.” Journal of the Mechanical Behavior of Biomedical Materials 105090 (2022).
  • Yuting Luo, Shahed Rezaei, David A. Santos, Yuwei Zhang, Joseph V. Handy, Luis Carrillo, Brian J. Schultz, Leonardo Gobbato, Max Pupucevski, Kamila Wiaderek, Harry Charalambous, Andrey Yakovenko, Matt Pharr, Bai-Xiang Xu#, and Sarbajit Banerjee#. “Cation Reordering Instead of Phase Transitions: Origins and Implications of Contrasting Lithiation Mechanisms in 1D ζ- and 2D α-V2O5.” Proceedings of the National Academy of Sciences of the United States of America 119 (4), 1-11 (2022).
  • Yuting Luo, Yang Bai, Aashutosh Mistry, Yuwei Zhang, Dexin Zhao, Susmita Sarkar, Joseph V. Handy, Shahed Rezaei, Andrew Chihpin Chuang, Luis Carrillo, Kamila Wiaderek, Matt Pharr, Kelvin Xie, Partha P. Mukherjee#, Bai-Xiang Xu#, Sarbajit Banerjee#. “Effect of crystallite geometries on electrochemical performance of porous intercalation electrodes by multiscale operando investigation.” Nature Materials 21 (2), 217-227 (2022).
  • Guan-Wen Liu, Yuwei Zhang, Melonie P. Thomas, Ahamed Ullah, Matt Pharr#, Beth Guiton#, and Sarbajit Banerjee#. “Negative Thermal Expansion HfV2O7 Nanostructures for Alleviation of Thermal Stress in Nanocomposite Coatings.” ACS Applied Materials & Interfaces 13 (37), 44723-44732 (2021).
  • Leonard Fifield#, Matt Pharr, David Staack, Suresh Pillai, Larry Nichols, James McCoy, Tony Faucette, Tucker Bisel, Min Huang, Md Kamrul Hasan, Lucas Perkins, Scott Cooley, and Mark Murphy. “Direct Comparison of Gamma, Electron Beam and X-ray Irradiation Doses on Characteristics of Low-density Polyethylene, Polypropylene Homopolymer, Polyolefin Elastomer and Chlorobutyl Rubber Medical Device Polymers.” Radiation Physics and Chemistry 186, 109505 (2021).
  • Richard J.-Y. Park, Christopher M. Eschler, Cole D. Fincher, Andres F. Badel, Pinwen Guan, Matt Pharr, Brian W. Sheldon, W. Craig Carter, Vekatasubramanian Viswanathan, and Yet-Ming Chiang#. “Semi-Solid Alkali Metal Electrodes Enabling High Critical Current Densities in Solid Electrolyte Batteries.” Nature Energy 6, 314-322 (2021).
  • Leonard Fifield#, Matt Pharr, David Staack, Suresh Pillai, Larry Nichols, James McCoy, Tony Faucette, Tucker Bisel, Min Huang, Md Kamrul Hasan, Lucas Perkins, Scott Cooley, and Mark Murphy. “Direct Comparison of Gamma, Electron Beam and X-ray Irradiation Effects on Single-Use Blood Collection Devices with Plastic Components.” Radiation Physics and Chemistry 180, 109282 (2021).
  • David A. Santos, Justin L. Andrews, Yang Bai, Peter Stein, Yuting Luo, Yuwei Zhang, Matt Pharr, Bai-Xiang Xu#, and Sarbajit Banerjee#. “Bending Good Beats Breaking Bad: Phase Separation Patterns in Individual Cathode Particles upon Lithiation and Delithiation.” Materials Horizons 7, 3275-3290 (2020).
  • Veronica Augustyn#, Ruocun Wang, Nina Balke, Matt Pharr, and Craig Arnold. “Deformation during Electrosorption and Insertion-type Charge Storage: Origins, Characterization, and Design of Materials for High Power.” ACS Energy Letters 5 (11), 3548-3559 (2020).
  • Justin Andrews, Peter Stein, David Santos, Cody Chalker, Luis R De Jesus, Rachel Davidson, Michelle Gross, Matt Pharr, James Batteas, Bai-Xiang Xu#, and Sarbajit Banerjee#. “Curvature-Induced Modification of Mechano-Electrochemical Coupling and Nucleation Kinetics in a Cathode Material.” Matter 3 (5), 1754-1773 (2020).
  • Cole D. Fincher†, Haley Turman†, Aaron French, Matthew Chancey, Jonathan Gigax, Eda Aydogan, Dexin Zhao, Digvijay Yadav, Kelvin Xie, Yongqiang Wang, Mike Borden, Lin Shao, Stuart A. Maloy, and Matt Pharr#. “Damage Relief in Ion-Irradiated Inconel 718 via Annealing.” Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 479, 157-162 (2020).
  • Seunghyun Lee†, Cole D. Fincher†, Russell Rowe, Arber Shasivari, Edwin Torres, Michael Ecker-Randolph, and Matt Pharr#. “Making something out of nothing: enhanced flaw tolerance and rupture resistance in elastomer-void “negative” composites.” Extreme Mechanics Letters 40, 100845 (2020).
  • Yusheng Lei, Yimu Chen, Ruiqi Zhang, Yuheng Li, Qizhang Yan, Seunghyun Lee, Yugang Yu, Hsinhan Tsai, Woojin Choi, Kaiping Wang, Yanqi Luo, Yue Gu, Xinran Zheng, Chunfeng Wang, Chonghe Wang, Hongjie Hu, Yang Li, Baiyan Qi, Muyang Lin, Zhuorui Zhang, Shadi A. Dayeh, Matt Pharr, David P. Fenning, Yu-Hwa Lo, Jian Luo, Kesong Yang, Jinkyoung Yoo, Wanyi Nie, and Sheng Xu#. “A fabrication process for flexible single-crystal perovskite devices.” Nature 583, 790-795 (2020).
  • Qing Zhou, Frank Gardea#, Zhen Sang, Seunghyun Lee, Matt Pharr, and Svetlana A. Sukhishvili#. “A Tailorable Family of Elastomeric-to-Rigid, 3D Printable, Interbonding Polymer Networks.” Advanced Functional Materials 30, 2002374 (2020).
  • Seunghyun Lee, Omid Zargar, Carl Reiser, Qing Li, Anastasia Muliana, Scott A. Finlayson, Francisco E. Gomez#, and Matt Pharr#. “Time-dependent Mechanical Behavior of Sweet Sorghum Stems.” Journal of the Mechanical Behavior of Biomedical Materials 106, 103731 (2020).
  • Cole D. Fincher, Yuwei Zhang, George M. Pharr, and Matt Pharr#. “Elastic and Plastic Characteristics of Sodium Metal.” ACS Applied Energy Materials 3 (2), 1759-1767 (2020).
  • Rachel Davidson, Ankit Verma, David Santos, Feng Hao, Cole D. Fincher, Dexin Zhao, Vahid Attari, Parker Schofield, Jonathan Van Buskirk, Antonio Fraticelli-Cartagena, Theodore E. G. Alivio, Raymundo Arroyave, Kelvin Xie, Matt Pharr, Partha P. Mukherjee#, and Sarbajit Banerjee#. “Mapping Mechanisms and Growth Regimes of Magnesium Electrodeposition at High Current Densities.” Materials Horizons 7, 843-854 (2020).
  • Cole D. Fincher, Daniela Ojeda, Yuwei Zhang, George M. Pharr, and Matt Pharr#. “Mechanical Properties of Metallic Lithium: from Nano to Bulk Scales.” Acta Materialia 186, 215-222 (2020).
  • KunHyuck Lee, Xiaoyue Ni, Jong Yoon Lee, Hany Arafa, David Pe, Shuai Xu, Raudel Avila, Masahiro Irie, Joo Hee Lee, Ryder L. Easterlin, Dong Hyun Kim, Ha Uk Chung,
    Omolara O. Olabisi, Selam Getaneh, Esther Chung, Marc Hill, Jeremy Bell, HoKyung Jang, Claire Liu, Jun Bin Park, Jungwoo Kim, Sung Bong Kim, Sunita Mehta, Matt Pharr, Andreas Tzavelis, Jonathan T. Reeder, Ivy Huang, Yujun Deng, Zhaoqian Xie#, Charles R. Davies#, Yonggang Huang#, John A. Rogers#. “Mechano-acoustic sensing of physiological processes and body motions via a soft wireless device placed at the suprasternal notch.” Nature Biomedical Engineering 4 (2), 148-158 (2020).
  • Philipp Mayer†, Nandhini Sivakumar†, Michael Pritz, Matjia Varga, Andreas Mehmann, Seunghyun Lee, Alfredo Salvatore, Michele Magno, Matt Pharr, Helge C. Johannssen, Gerhard Troester, Hanns Ulrich Zeilhofer, and Giovanni Antonio Salvatore#. “Flexible and Lightweight Devices for Wireless multi-Color Optogenetic Experiments Controllable via Commercial Cell Phones.” Frontiers in Neuroscience 13 (819), 1-14 (2019).
  • Yuwei Zhang, Yuting Luo, Cole Fincher, Sarbajit Banerjee, and Matt Pharr#. “Chemo-Mechanical Degradation in V2O5 Thin Film Cathodes of Li-ion Batteries during Electrochemical Cycling.” Journal of Materials Chemistry A 7, 23922-23930 (2019).
  • Yuwei Zhang, Coleman Fincher, Scott McProuty, and Matt Pharr#. “In-operando imaging of polysulfide catholytes for Li-S batteries and implications for kinetics and mechanical stability.” Journal of Power Sources 434, 226727 (2019).
  • Rachel D. Davidson†, Yenny Cubides†, Cole Fincher, Peter Stein, Chelsea McLain, Bai-Xiang Xu, Matt Pharr, Homero Castaneda#, and Sarbajit Banerjee#. “Tortuosity but not Percolation: Design of Exfoliated Graphene Nanocomposite Coatings for Extended Corrosion Protection of Aluminum Alloys.” ACS Applied Nano Materials 2, 3100-3116 (2019).
  • Seunghyun Lee and Matt Pharr#. “ ‘Sideways’ and stable crack propagation in a silicone elastomer.” Proceedings of the National Academy of Sciences of the United States of America 116 (19), 9251-9256 (2019).
  • Rachel Davidson, Ankit Verma, David Santos, Feng Hao, Coleman Fincher, Sisi Xiang, Jonathan van Buskirk, Kelvin Xie, Matt Pharr, Partha Mukherjee#, and Sarbajit Banerjee#. “Formation of Magnesium Dendrites during Electrodeposition.” ACS Energy Letters 4, 375-376 (2019).
  • Mohammad Humood, Joseph Lefebvre, Yan Shi, Mengdi Han, Coleman D. Fincher, Matt Pharr, John A. Rogers, and Andreas A. Polycarpou#. “Fabrication and Mechanical Cycling of Polymer Microscale Architectures for 3D MEMS Sensors.” Advanced Engineering Materials 21, 1801254 (2019).
  • Yuwei Zhang, Yuting Luo, Coleman Fincher, Scott McProuty, Garrett Swenson, Sarbajit Banerjee, and Matt Pharr#. “In-Situ Measurements of Stress Evolution in Composite Sulfur Cathodes.” Energy Storage Materials 16, 491-497 (2019).
  • Ruocun Wang, James B. Mitchell, Qiang Gao, Wan-Yu Tsai, Shelby Boyd, Matt Pharr, Nina Balke, and Veronica Augustyn#. “Operando Atomic Force Microscopy Reveals Mechanics of Structural Water Driven Battery-to-Pseudocapacitor Transition.” ACS Nano 12 (6), 6032-6039 (2018).
  • Xinge Yu†, Heling Wang†, Xin Ning†, Rujie Sun, Hassan Albadawi, Marcela Salomao, Alvin C. Silva, Yang Yu, Limei Tian, Ahyeon Koh, Chan Mi Lee, Aditya Chempakasseril, Peilin Tian, Matt Pharr, Jianghong Yuan, Yonggang Huang#, Rahmi Oklu#, and John A. Rogers#. “Needle-shaped ultrathin piezoelectric microsystem for guided tissue targeting via mechanical sensing.” Nature Biomedical Engineering 2, 165-172 (2018).
  • Hongjie Hu†, Xuan Zhu†, Chonghe Wang†, Lin Zhang, Xiaoshi Li, Seunghyun Lee, Zhenlong Huang, Ruimin Chen, Zeyu Chen, Chunfeng Wang, Yue Gu, Yimu Chen, Yusheng Lei, Tianjiao Zhang, NamHeon Kim, Yuxuan Guo, Yue Teng, Wenbo Zhou, Yang Li, Akihiro Nomoto, Simone Sternini, Qifa Zhou, Matt Pharr, Francesco Lanza di Scalea, and Sheng Xu#. “Stretchable ultrasonic transducer arrays for three-dimensional imaging on complex surfaces.” Science Advances 4 (3), eaar3979 (2018).
  • Mohammad Humood, Yan Shi, Mengdi Han, Joseph Lefebvre, Zheng Yan, Matt Pharr, Yihui Zhang, Yonggang Huang, John A. Rogers, and Andreas A. Polycarpou#. “Fabrication and Deformation of 3D Multilayered Kirigami Microstructures.” Small 14, 1703852 (2018).