JOINING OF SILICON NITRIDE WITH GLASS OR POWDER UNDER MECHANICAL PRESSURE

摘要

Bulk silicon nitride was joined using glass or silicon nitride powder as insert materials. The glass composition was similar to that of the grain boundary glassy phase of the bulk silicon nitride, and the silicon nitride powder composition was the same as that of the bulk. The insert material was placed between the bulk silicon nitride pieces, and they were soaked at elevated temperatures near the sintering temperature of silicon nitride for joining. Mechanical pressure was applied for reliable joining. Successful joining could be achieved for both insert materials.