Electrodischarge-Machinable Silicon Carbide Ceramics Sintered with Yttrium Nitrate
Abstract:A silicon carbide (SiC) powder compact was prepared with submicrometer -SiC, yttrium nitrate as a sintering additive, and polysiloxane-phenol resin as precursors for nanosized SiC. By hot-pressing, fully dense SiC ceramics with good electrical conductivity, as high as 3 × 104 (Ω·m)−1 at room temperature, were obtained. The ceramics could be machined to complex shapes by electrodischarge machining.
Document Type: Research Article
Affiliations: 1: Functional Ceramics Laboratory, Department of Materials Science and Engineering, University of Seoul, Seoul130-743, Korea 2: Department of Physics, Konkuk University, Seoul 143-701, Korea 3: National Fusion Research Institute, Daejeon 305-333, Korea 4: School of Materials Science and Engineering, Inha University, Incheon 402-751, Korea
Publication date: 2011-04-01