Carnegie Mellon University

Robert M. Suter

Emeritus Professor of Physics
Professor of Materials Science & Engineering (Courtesy)

Condensed Matter Experiment
Wean Hall 7410

email
lab website

Prof. Bob Suter

Education & Professional Experience

Ph.D.: Clark University (1978)

Professional Societies:
American Physical Society, AAAS, Materials Research Society, Minerals, Metals & Materials Society

 

Curriculum Vitae

Professor of Physics, Carnegie Mellon University, 1996–
Professor of Materials Science & Engineering (Courtesy), 2006–
Associate Professor, Carnegie Mellon University, 1987–96
Visiting Scientist, Schlumberger-Doll Research, 1986
Visiting Scientist, IBM Research, 1985
Assistant Professor, Carnegie Mellon University, 1981–87
Post-doctoral Research: IBM T.J. Watsen Research Center, 1979–81

Research Interests

In collaboration with scientists at Sector 1 of the Advanced Photon Source synchrotron, we are developing a high energy x-ray diffraction microscope (HEDM). This new type of microscope allows for non-destructive mapping of internal microstructure components (crystalline grains and defect fields) in three dimensions inside polycrystalline and even polyphase materials. Being non-destructive, the technique makes it possible to watch the response of microstructures to thermal and/or mechanical treatment well away from the influence of surfaces. A wide range of applications are possible, including questions of basic science (grain growth or phase transformation dynamics) and of industrial interest (fatigue and cracking phenomena).

Both the measurements and the reconstruction of microstructures are challenging. My group at CMU has developed advanced computational techniques and software for generating the microscope output through analysis of hundreds of detector images of diffraction patterns. Computations are performed at the Pittsburgh Supercomputing Center (PSC) and on a dedicated cluster in the Physics Department. Interpretation of obtained three dimensional data sets is aided by interaction with other participants in the CMU MRSEC.

I also run the Physics Department's x-ray scattering laboratory where measurements are carried out on a wide variety of materials systems including thin solid and fluid films and biologically relevant lipid membranes.

Recent Publications

Yu-Feng Shen et al., The Importance of Outliers: A Three Dimensional Study of Coarsening in in Alpha Phase Iron, Phys. Rev. Mat. 3, 063611 (2019)

Aditi Bhattacharya et al., Three-dimensional observations of grain volume changes during annealing of polycrystalline Ni, Acta Mat. 167, 40 (2019)

Yu-Feng Shen et al., Determining Grain Boundary Energies from Triple Junction Geometries without Discretizing the Five-Parameter Space, Acta Mat. 166, 126 (2019)

John P. Hanson et al., Crystallographic character of grain boundaries resistant to hydrogen-assisted fracture in Ni-base alloy 725, Nature Comm. 9, 3386 (2018)

Reeju Pokharel et al., Non-Destructive Characterization of UO2+x Nuclear Fuels, Microscopy Today, 25, 42 (2017)

Robert M. Suter, Multiscale measurements for materials modeling, Science, 356, 704 (2017)

Leyun Wang et al., Direct measurement of critical resolved shear stress of prismatic and basal slip in polycrystalline Ti using high energy X-ray diffraction microscopyActa Mat. 132, 598610 (2017)

William K. Epting et al., Quantifying intermediate-frequency heterogeneities of SOFC electrodes using X-ray computed tomographyJ. Am. Ceramic Soc. 100, 2232 (2017)

Akbar Bagri et al., Measuring grain boundary character distributions in Ni-base alloy 725 using high-energy diffraction microscopy, Metall. Mat. Trans. A, 48, 354 (2017)

David B. Menasche et al., Shock induced damage in copper: A before and after, three-dimensional studyJ. Appl. Phys. 119, 15490 (2016)

Loïc Renversade et al., Comparisonbetween Diffraction Contrast Tomography and High Energy Diffraction Microscopy on a slightly deformed aluminium alloyIUCrJ 3, 32 (2016)

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