Erhard Klar studied at the University of Tuebingen and the Technical University of Berlin where he received his Ph.D. in physical chemistry. This was followed by postdoctoral studies at the University of Pittsburgh. Dr. Klar's work on the powder metallurgy of stainless steels and other materials was conducted at the Metals Group of SCM Corporation, where he was the Director of Research. Dr. Klar is now retired. Prasan K. Samal received his B. Tech. in Metallurgy from the Indian Institute of Technology-Madras, and his M.S. and Ph.D. in Materials Engineering from the University of Maryland-College Park and Case Western Reserve University, respectively. He started his career with Kennecott Copper Corporation, then joined the Metals Group of SCM Corporation, which later became a part of OMG Americas, and subsequently acquired by North American Hoganas. Dr. Samal holds ten U.S. patents and has published more than forty technical papers