Research Interests:
My research is broadly concerned with developing both models of materials phenomena, and the tools to enable the solution of these models. Specific foci include solidification, pattern formation, grain structures, wetting, diffusion, and spreading in metals.
I have been employed at NIST since 1992, in the Metallurgy Division of the Materials Science and Engineering Laboratory. and was one of the co-founders of the Center for Theoretical and Computational Materials Science.
For a discussion of the the multitude of phase field modeling projects I have been involved in, as well as work by others in the CTCMS on this interesting topic, visit the CTCMS 
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Position:
Group Leader
Metallurgy Division
Thermodynamics and Kinetics Group
Employment History:
- Physicist, Metallurgy Division, NIST. Theoretical and computational research on solidification, pattern formation, grain structures, wetting, diffusion, and spreading in metals. (1992-Present)
- Director, NIST Center for Theoretical and Computational Materials Science (CTCMS), January 2001-2003. 2004-present
- Deputy Director , CTCMS, February 1997-December 2000, October 2003-October 2004
- Workshop Coordinator, CTCMS, January 1995 - February 1997.
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- NRC Post-Doctoral Fellow, Metallurgy Division, NIST, Gaithersburg, MD, September 1992 - September 1994.
- Research Assistant, UCSB 1989-1992
- Tutor, Minority Achievement Project, UCSD, 1988-1989
- Teaching Assistant , UCSB, 1987-1988
Education:
- Ph.D. in Statistical Physics, 1992, University of California, Santa Barbara, CA. Advisor: James S. Langer.
- A.B., Summa Cum Laude, 1987, Dartmouth College, Phi Beta Kappa, High Honors in Physics
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