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Professor Gregory S. Rohrer  

Professor Gregory S. Rohrer

W.W. Mullins Professor and Department Head of Materials Science and Engineering
Ph.D., University of Pennsylvania

Department of Materials Science and Engineering
Carnegie Mellon University
5000 Forbes Avenue
Wean Hall 3327
Pittsburgh, PA 15213-3890

Phone: (412) 268-2696
FAX: (412) 268-7596

Professor Rohrer's Web Site



Gregory S. Rohrer is the W.W. Mullins Professor of Materials Science and Engineering, the Head of the Materials Science and Engineering Department, and the Director of the NSF sponsored Materials Research Science and Engineering Center at Carnegie Mellon University. He received his bachelor's degree in Physics from Franklin and Marshall College in 1984 and his Ph.D. in Materials Science and Engineering from the University of Pennsylvania in 1989. He is the author of over 170 publications and has received the following awards: National Science Foundation Young Investigator Award (1994), Roland B. Snow Award of the American Ceramic Society (1998), Ross Coffin Purdy Award of the American Ceramic Society (2002), Fellow of the American Ceramic Society (2003), the Richard M. Fulrath Award of the American Ceramic Society (2004), and the Robert B. Sosman Award of the American Ceramic Society (2009).  Rohrer gave the Lawley lecture at Drexel University in 2005, the Winchell Lecture at Purdue University in 2007, and the GE Distinguished Lecture for MS&E at Rensselaer Polytechnic Institute in 2009. Rohrer is an Associate Editor of the Journal of the American Ceramic Society and was the chair of the Basic Science Division of the American Ceramic Society in 2005 and is on the executive committee of the University Materials Council.

Research Interests

The properties of surfaces and grain boundaries are influenced by their geometric and crystallographic structure, their stoichiometry, and their defect structure. Professor Rohrer’s research is aimed at the quantitative study of interfacial properties with the goal of defining structure-property relationships for interfaces. Current research in the area of polycrystalline structure has the goals of quantifying the population of different grain boundary types, measuring their properties, understanding the mechanism by which the network forms during processing, and understanding the influence that the network structure has on the macroscopic properties of the material. Current research in the area of metal oxide surfaces has the long range goal of developing composite polar oxide materials that make the photolytic production of hydrogen economically feasible.

Recent Publications

N.V. Burbure, P.A. Salvador, G.S. Rohrer, "Orientation and phase relationships between titania films and polycrystalline BaTiO3 substrates as determined by electron backscatter diffraction mapping," Journal of the American Ceramic Society, 93 (2010) 2530-2533.

S.J. Dillon, M.P. Harmer, and G.S. Rohrer, "Influence of interface energies on solute partitioning mechanisms in doped aluminas," Acta Materialia, 58 (2010) 5097-5108.

G.S. Rohrer, E.A. Holm, A.D. Rollett, S.M. Foiles, J. Li, D.L. Olmsted, "Comparing calculated and measured grain boundary energies in nickel," Acta Materialia, 58 (2010) 5063-5069.

G.S. Rohrer and H.M. Miller, "Topological Characteristics of Plane Sections of Polycrystals," Acta Materialia, 58(2010) 3805-3814.

A. Bhardwaj, N.V. Burbure, A. Gamalski, G.S. Rohrer, "Composition Dependence of the Photochemical reduction of Ag by Ba1-xSrxTiO3," Chemistry of Materials, 22 (2010) 3527-3534

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