Title:
SI3N4 CERAMIC PRODUCT WITH LOW DENSITY OUTER LAYER AND METHOD THEREOF
Document Type and Number:
Japanese Patent JPS5756383
Kind Code:
A
Abstract:
Monolithic Si3N4 ceramic bodies having a lower density outer layer are produced by a one-step sintering in an ambient atmosphere of water vapor and a nonreactive diluent gas, and are useful, for example, as abradable seal and impact resistant structural elements.
Inventors:
SERUJIEI TOMISURAFU BURUJIYAN
Application Number:
JP12685781A
Publication Date:
April 03, 1982
Filing Date:
August 14, 1981
Export Citation:
Assignee:
SYLVANIA ELECTRIC PROD
International Classes:
C04B35/584; C04B35/64; F01D5/28; F01D9/02; F01D11/00; F01D11/08; F01D11/12; (IPC1-7): C04B35/58; F01D5/28; F01D9/02; F01D11/00