Advanced Materials for the 21st Century: The 1999 Julia R. Weertman Symposium: Proceedings of a Symposium Sponsored by the ASM/TMS Mechanical Behavior of Materials Committee and the Flow and Fracture Committee of the MPMD Division of the Minerals, Metals and Materials Society (TMS) Held During the 1999 TMS Fall Meeting in Cincinnati, Ohio, October 31-November 4, 1999