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Dr. George M. Pharr

Chancellor’s Professor, McKamey Professor of Engineering,
and UT-ORNL Joint Faculty 

Ph.D., Stanford (1979): Nanoindentation, small-scale mechanical behavior, mechanisms of deformation and fracture in solids

Brief Bio

George M. Pharr received his BS in Mechanical Engineering at Rice University in 1975 and Ph.D. in Materials Science and Engineering from Stanford in 1979. After one year of postdoctoral study at the Engineering Department of the University of Cambridge, England, he returned to Rice in 1980 as a faculty member in the Department of Mechanical Engineering and Materials Science. During a sabbatical leave in 1987-88, he worked with the Ceramic Sciences Group at the IBM Thomas J. Watson Research Center in Yorktown Heights, NY. He moved to his current joint position at UT/ORNL in 1998 and was head of the UT Materials Science and Engineering Department during the period 2006-11. He received ASM International’s Bradley Stoughton Award for Young Teachers of Metallurgy in 1985 and was elected a Fellow of ASM International in 1995. His honors also include the Amoco Award for Superior Teaching at Rice University in 1995 and the Innovation in Materials Characterization Award of the Materials Research Society in 2010. He has been an Associate Editor of the Journal of the American Ceramic Society since 1990 and served as Volume Organizer for the MRS Bulletin in 2000. He has chaired or co-chaired many large professional society meetings including the 1995 Spring Meeting of the Materials Research Society in San Francisco  and the 2000 Gordon Research Conference on Thin Film Mechanical Behavior, which he co-founded in 1998. He is an author or co-author of more than 220 scientific publications, including 4 book chapters, and a Thomson ISI “Highly Cited Researcher in Materials Science”. His research focuses on nanoindentation and small-scale mechanical behavior of materials.

Research Areas

• Nanoindentation and nanomechanical testing
• Thin film and small-scale mechanical behavior
• Mechanisms of fracture and flow in solids
• Finite element modeling of indentation contact

Selected Awards and Honors

2010 MRS Innovation in Materials Characterization Award
 Chancellor’s Professor, University of Tennessee
2007 Humboldt Research Award for Senior US Scientists
2003 ISI “Highly Cited Researcher” in Materials Science
1995 Amoco Teaching Award, Rice University
1984 ASM Bradley Stoughton Award for Young Teachers of Metallurgy

Professional Activities

• Associate Editor, Journal of the American Ceramic Society, 1990-present
• Volume Editor, MRS Bulletin, 2000
• Guest editor, Journal of Materials Research – special focus issue on “Indentation Methods in Advanced Materials Research“, March 2009
• Guest editor, Journal of Materials Research – special focus issue on “Instrumented Indentation Testing“, January 2004
• Guest Editor, Philosophical Magazine – special issue on “Instrumented Indentation Testing in Materials Research and Development”, December 2006.
• Chair, 2000 Gordon Research Conference on Thin Film Mechanical Behavior, Plymouth, NH, July 2000
• Meeting Co-Chair, Spring Meeting of the Materials Research Society, April 1995
• Adjunct Professor of Biomedical Engineering, The University of Memphis, 2002-2005
• Master – Wiess College, Rice University, 1989-1994

Selected Publications

Y.F. Gao, H.T. Xu, W.C. Oliver, and G.M. Pharr, “Effective Elastic Modulus of Film-on-Substrate Systems Under Normal and Tangential Contact”, Journal of the Mechanics and Physics of Solids 56, pp. 402-416 (2008).

H. Bei, S. Shim, G.M. Pharr, and E.P. George, “Effects of Pre-strain on the Compressive Stress-Strain Response of Mo-alloy Single Crystal Micro-pillars”, Acta Materialia 56, pp. 4762-4770 (2008).

E.G. Herbert, W.C. Oliver, A. Lumsdaine, and G.M. Pharr, “Measuring the Constitutive Behavior of Viscoelastic Solids in the Time and Frequency Domain Using Flat Punch Nanoindentation”, Journal of Materials Research 24, pp. 626-637 (2009).

G.M. Pharr, J.H. Strader, and W.C. Oliver, “Critical Issues in Making Small-depth Mechanical Property Measurements by Nanoindentation with Continuous Stiffness Measurement”, Journal of Materials Research 24, pp. 653-666 (2009).

G.M. Pharr, E.G. Herbert, and Y.F. Gao, “The Indentation Size Effect: A Critical Examination of Experimental Observations and Mechanistic Interpretations”, Annual Reviews in Materials Research 40, pp. 271-290 (2010).

C. Begau, A. Hartmaier, E.P. George, and G.M. Pharr, Atomic Processes of Dislocation Generation and Plastic Deformation During Nanoindentation”, Acta Materialia 59, pp. 934-942 (2011).

P. Sudharshan Phani, K. Johanns, A. Gali, G. Duscher, E.P. George, and G.M. Pharr, “Scanning Transmission Electron Microscope Observations of Defects in As-Grown and Pre-strained Mo Alloy Fibers”, Acta Materialia 59, pp. 2172-2179 (2011).

X.H. Bi, C.A. Patil, C.C. Lynch, G.M. Pharr, A. Mahadevan-Jansen, and J.S. Nyman, “Raman and Mechanical Properties Correlate at the Whole Bone- and Tissue-Levels in a Genetic Mouse Model”, Journal of Biomechanics 44, pp. 297-303 (2011).

J.R. Morris, H. Bei, G.M. Pharr, and E.P. George, “Size Effects and Stochastic Behavior of Nanoindentation Pop-in”, Physical Review Letters 106, 165502:1-4 (2011).

M. Sebastiani, C. Eberl, E. Bemporad, and G.M. Pharr, “Depth-resolved Residual Stress Analysis of Thin Coatings by a New FIB-DIC Method”, Materials Science and Engineering A528, pp. 7901-7908 (2011).

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