PRODUCTION OF SILICON NITRIDE-BASED CERAMIC COMPACT

摘要

PURPOSE:To obtain an economically inexpensive silicon nitride-based ceramic compact, capable of preparing a highly dispersed slip at a high concentration without deterioration in compact density, having a small dry heat shrinkage factor and capable of forming products of a certain large size or a complicated shape without breaking at the time of forming. CONSTITUTION:A method for producing a silicon nitride-based ceramic compact is characterized by cast forming a slip composed of 50-95wt.% silicon nitride powder having 5-20m<2>/g specific surface area and 5-50wt.% sialon powder having 0.5-15m<2>/g specific surface area.