Core Faculty

Peter W. Voorhees

Peter W. Voorhees

Frank C. Engelhart Professor of Materials Science and Engineering

2220 Campus Drive

Cook Hall 2036

Evanston, IL 60208

p-voorhees( at )northwestern.edu

Education

Ph.D. Materials Engineering, Rensselaer Polytechnic Institute, Troy, NY

B.S. Physics, Rensselaer Polytechnic Institute, Troy, NY

Research Interests

We are involved in research that employs theory, simulation, and experiment in areas from nanotechnology and energy to four-dimensional microscopy.

We are developing descriptions of semiconductor nanowire growth using both phase field simulations and theory. Our effort on solid oxide fuel cell materials is focused on the formation of nanocatalysts on the solid-vapor surfaces, the effects of stress on the defect structure and composition of the oxides, and the three-dimensional structure of the voids and phases in anodes and cathodes.

We are examining the dynamics of grain growth in materials using phase field simulations and time-dependent x-ray tomography. 

We have performed experiments on the coarsening of solid-liquid mixtures on the International Space Station. The analysis of the samples is continuing. 

Finally, we are using both simulation and experiment to examine the evolution of morphologically complex two-phase mixtures.

Significant Recognition

  • Fellow, The Minerals, Metals and Materials Society, 2013
  • J. Willard Gibbs Phase Equilibria Award, ASM International, 2013
  • Fellow, American Physical Society, Material Physics Division, 2005
  • Highly Cited Researcher, Institute for Scientific Information, 2002
  • Fellow, ASM International, 2001
  • Materials Science and Engineering Teacher of the Year, 1999
  • Outstanding Referee, Acta Materialia, 1998
  • ASM International Materials Science Division Research Award (Silver Medal), 1992
  • McCormick School of Engineering and Applied Science Award for Teaching Excellence, 1992
  • Acta Metallurgica et Materialia Outstanding Paper Award, 1991
  • Materials Science and Engineering Teacher of the Year, 1989, 1990
  • National Science Foundation Presidential Young Investigator Award, 1989

Significant Professional Service

  • Frank C. Engelhart Professor of Materials Science and Engineering, 2000
  • National Science Foundation Creativity Extension, 1999

Selected Publications

  • Chen-Wiegart, Yu-Chen Karen; Dunand, David C.; Voorhees, Peter W.; Wang, Steve; Lee, Wah-Keat, “In situ imaging of dealloying during nanoporous gold formation by transmission X-ray microscopy”, Acta Materialia, (2013)
  • Voorhees, P.W.; Philippe, T., “Ostwald ripening in multicomponent alloys”, Acta Materialia, (2013)
  • Poulsen, S.O.; Voorhees, P.W.; Lauridsen, E.M., “Three-dimensional simulations of microstructural evolution in polycrystalline dual-phase materials with constant volume fractions”, Acta Materialia, (2013)
  • Voorhees, Peter W.; Shim, Wooyoung; Kang, Joohoon; Lee, Seunghyun; Roh, Jong Wook, “Thermodynamic-enabled synthesis of Bi/Bi 14 Te 6 axial heterostructure nanowires”, Journal of Materials Chemistry A, (2013)
  • Voorhees, Peter W.; Genau, Amber L., “The morphological evolution of low volume fraction tin dendrites during coarsening”, Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, (2013)
  • Lauhon, Lincoln J.; Schwalbach, Edwin J.; Voorhees, Peter W.; Connell, Justin G.; Yoon, Kunho, “Identification of an intrinsic source of doping inhomogeneity in vapor-liquid-solid-grown nanowires”, Nano Letters, (2013)
  • Chen-Wiegart, Yu-Chen Karen; Dunand, David C.; Voorhees, Peter W.; Wang, Steve; McNulty, Ian, “Structural evolution of nanoporous gold during thermal coarsening”, Acta Materialia, (2012)
  • Voorhees, Peter W.; Comets, Olivier, “The stress engendered by oxygen bubble formation in the electrolyte of solid oxide electrolysis cells”, ECS Transactions, (2012)

Department of Materials Science and Engineering

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