Influence of machining on the strength of hot-pressed silicon nitrideFunded under: JRC-ADVMAT 1C
Machining techniques for advanced ceramics have become increasingly important. To a certain extent a large number of potential applications depend upon the development of efficient, economical and reliable machining processes for these ceramics. An extensive study has been conducted to determine the effects of cost-effective machining on the strength of hot-pressed Si(3)N(4). The creep-feed grinding method was adopted and several machining parameters, including diamond wheel specification and preparation, were studied; the grinding forces were also measured during machining. The roles of the machining variables were evaluated on the basis of statistical flexural strength data, fractography and scanning electron microscope observations. The results have been correlated to the machining-induced damage and surface flaws. The optimal grinding conditions have been assessed on the basis of these results.
Bibliographic Reference: Paper presented: 1st European Ceramic Society Conference, Maastricht (NL), June 18-23, 1989
Availability: Available from (1) as Paper EN 34974 ORA
Record Number: 198911101 / Last updated on: 1994-12-01
Original language: en
Available languages: en