Member at large 2004-2006, Treasurer 2006-2008, Chairman 2008-2010.
American Ceramic Society
Associate Editor, Journal of the American Ceramic Society, 1986–2012
American Ceramics Society, 1987–1991
Member, DOE-EPSCoR Advisory Committee to University of Puerto Rico, 2003-2005
Mentor, 8 postdoctoral researchers and graduate students
Member, SURA/ORNL Summer Cooperative Research Program, 2001 and 2003
Participant: NEMI (National Electronics Manufacturing Initiative) Roadmap Workshop on Energy Storage Systems, June 1995
Participant, DOE Advanced Lithium Solid State Batteries Workshop, July 1999
Participant, Research Assistance Task Force on Beta-Alumina for Sodium-Sulfur Cells, Oak Ridge, Tennessee, March 1983
Judge, Annual Southern Appalachian Science and Engineering Fairs, 1987–1994
Member, Oak Ridge National Laboratory, Ph.D. Recruiting Committee, 1981–82
Member, Local Committee, International Conference on Fast Ionic Transport in Solids, Gatlinburg, Tennessee, May 1981
Chairman, Ceramics graduate student organization
Member, American Ceramic Society, International Society for Solid State Ionics, Materials Research Society, Electrochemical Society, North American Catalysis Society