|About this Abstract
||Materials Science & Technology 2012
||MS&T'12 Poster Session
||D7: Fabrication of Tungsten, Tungsten-Rhenium and Tungsten-CeO2 Materials Via Pulsed Electric Current Sintering
||Jonathan Webb, Indrajit Charit
|On-Site Speaker (Planned)
Recently the National Aeronautics and Space Administration (NASA) as well as the U.S. Department of Energy (DOE) have renewed interests in tungsten based Ceramic-Metallic) CERMET nuclear fuels for very high temperature reactor applications. Experiments were performed using Pulsed Electric Current Sintering (PECS) to fabricate tungsten, tungsten-rhenium and tungsten CERMET materials with the finest possible grain structure. Dynamic kinetics studies were conducted to help determine the mechanisms for densification and grain growth during sintering, and post process HIP experiments were also conducted. Basic strategies were explored to fabricate W-CeO2 materials by mixed particle and coated particle methods, where the CeO2 acts as a surrogate for UO2.
||Definite: A CD-only volume