ELECTROPHORETIC FORMING OF SILICON-CARBIDE CERAMICS

Electrophoresis is the movement of particles suspended in a liquid und er influence of an electric field. Electrophoretic forming of silicon carbine (SiC) requires the simultaneous deposition of SiC and sinterin g aids such as carbon and boron. The incorporation of the sintering ad ditives was studied in two ways: co-deposition of a boron-containing S iC powder and carbon black, as well as the co-deposition of SiC, boron carbine and carbon black. A high final density after sintering (>95%) was obtained with the two approaches. (C) 1996 Elsevier Science Limit ed.