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William J. Boettinger (Assoc)

William J. Boettinger is a NIST Fellow (Emeritus) in the Materials Science and Engineering Division of the Material Measurement Laboratory at NIST in Gaithersburg, MD. Before joining the permanent staff at NBS/NIST, he was a NRC/NAE postdoctoral research associate at NBS from 1972-1974. From 1977 until 1995 he held a concurrent position as a professorial lecturer at the George Washington University where he taught a graduate course in phase transformations.

His expertise includes the thermodynamics and kinetics of metallurgical systems especially the relationship of alloy microstructure to processing conditions. Alloy microstructure is the spatial distribution of grains, phase and their concentration gradients. He has over one hundred seventy publications on topics including dendritic, eutectic and peritectic solidification, rapid solidification, phase diagrams, diffusion, intermetallic compounds, measurement of crystal perfection using x-rays, soldering and Sn whisker growth.

Dr. Boettinger was awarded the Department of Commerce Bronze Medal in 1980, Silver Medals in 1983 and 1994, and Gold Medals in 1999 and 2003. He received the Materials Science Division Award of the American Society for Materials (ASM) in 1989 and was made a fellow of that society in 1994. He co-chaired the 1994 Physical Metallurgy Gordon Research Conference with J. H. Perepezko. He has received several honors from The Minerals, Metals and Materials Society (TMS): the 1999 Champion Mathewson Best Paper Award, the 2001 TMS Bruce Chalmers Award for research in solidification and a Fellow in 2006. He was named a NIST Fellow in 2001, elected a member of the National Academy of Engineering in 2006 and received the federal government's Presidential Rank Award in 2007.

For more information see


John Werner Cahn

William J. Boettinger, C A. Handwerker, Frank W. Gayle
John Werner Cahn, retired Senior Fellow of the National Institute of Standards and Technology (NIST), died in Seattle, WA on March 14, 2016 at age 88. After

Solidification of Ni-Re Peritectic Alloys

William J. Boettinger, Dale E. Newbury, Nicholas W. Ritchie, Maureen E. Williams, Ursula R. Kattner, Eric Lass, Kil-Won Moon, Michael B. Katz
Differential thermal analysis (DTA) and microstructural and microprobe measurements of DTA and as-cast Ni-Re alloys with compositions between 0.20 and 0.44 mass
Created October 9, 2019, Updated June 15, 2021