Gregory S. Rohrer

Gregory S. Rohrer is the W.W. Mullins Professor of Materials Science and Engineering at Carnegie Mellon University, where he has been a faculty member since 1990. He served as Department Head from 2005 to 2021 and was named University Professor in 2025. His research focuses on the structure and properties of interfaces in crystalline materials, particularly grain boundaries, and their impact on material behavior.

• Education: Ph.D. in Materials Science and Engineering from the University of Pennsylvania (1989), B.S. in Physics from Franklin and Marshall College (1984)

Rohrer's research spans advanced materials processing, ceramics, energy materials, metallurgy, and sustainable energy. He has pioneered work on quantifying atomic and microstructural mechanisms in high-temperature materials, with significant contributions to grain boundary crystallography and microstructure prediction. His recent research page details applications in materials for energy production and catalysis.

His publications (over 350) include groundbreaking studies on grain boundary energy, phase transformations, and microstructural evolution. Key awards include the Outstanding Educator Award (2025), Cyril Stanley Smith Award (2025), and MRS Fellow (2024). He has also held leadership roles as Coordinating Editor for Acta Materialia and Board Member of the American Ceramic Society.

As a dedicated educator, he authored the textbook Structure and Bonding in Crystalline Materials and maintains extensive student/instructor resources. His NSF-funded research has driven innovations in predicting material microstructures and understanding high-temperature deformation mechanisms.