Gregory S. Rohrer is the W.W. Mullins Professor of Materials Science and Engineering. He received his bachelor’s degree in physics from Franklin and Marshall College, his doctoral degree in materials science and engineering from the University of Pennsylvania, and joined the faculty at Carnegie Mellon in 1990. From 2005 to 2021, he was the head of the department. Rohrer is a fellow of the American Ceramic Society and has authored or co-authored more than 350 publications. His research has been recognized by numerous awards, among which are the Richard M. Fulrath Award, the Robert B. Sosman Award, and the W. David Kingery Award, all of the American Ceramic Society.  Rohrer is the coordinating editor for the Acta Materialia family of Journals.  In 2011, he served as chair of the University Materials Council, from 2016 to 2019 he was a member of the Board of Directors of the American Ceramic Society.

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1989 Ph.D., Materials Science and Engineering, University of Pennsylvania

1984 BS, Physics, Franklin and Marshall College

Media mentions

Materials Science and Engineering

Rohrer earns MRS, ASM recognition

Greg Rohrer was recently selected as an MRS fellow, and designated to deliver the ASM Andrew Carnegie Lecture.

The Philadelphia Inquirer

Rohrer quoted on steel vulnerabilities after overpass collapse

MSE’s Greg Rohrer spoke to the Philadelphia Inquirer about the properties of steel in light of the recent overpass collapse on I-95 in Philadelphia that occurred after a tanker truck caught fire. Rohrer noted that heat not only makes steel girders weaker, but it also causes them to expand.

US Department of Energy

Rohrer’s microstructure research shared by DOE

MSE’s Gregory Rohrer’s research on predicting the microstructure of materials was shared by the US Department of Energy Office of Science.

CMU Engineering

Refuting a 70-year approach to predicting material microstructure

Researchers at Carnegie Mellon University have developed a new microscopy technique that maps material microstructure in three dimensions; results demonstrate that the conventional method for predicting materials’ properties under high temperature is ineffective.

CMU Engineering

Remembering Harold Paxton

Harold W. Paxton, former head of the Department of Materials Science and Engineering, passed away on March 8, 2021.

CMU Engineering

Air Force partnership to fuse AI and materials research

CMU and Air Force Research Laboratory establish 5-year, $7.5M Center of Excellence in data-driven materials research.

CMU Engineering

Two students earn Goldwater honors

Created to serve as a living memorial to honor the lifetime work of Senator Barry Goldwater, the Goldwater scholarship provides funding to students pursuing research careers in the natural sciences, mathematics, and engineering.

Rohrer contributes to grain boundaries research

MSE Head Greg Rohrer was recently mentioned in a article for his contribution to work that lead to the discovery of segregation-induced superstructures at grain boundaries in nickel-bismuth polycrystalline alloys.

Rollett and Rohrer publish book on materials science topics

MSE’s Tony Rollett and MSE Head Greg Rohrer recently published a materials science book, called Recrystallization and Related Annealing Phenomena. The newest edition of their text provides experts with the latest findings in the materials science field.

CMU Engineering

Department news

The initiatives underway in the College’s departments embody the value we place on progress. Here are some of our current projects and prides.