MANUFACTURE OF LIGHT-PERMEABLE BETA-SIALON SINTERED BODY

Title:

MANUFACTURE OF LIGHT-PERMEABLE BETA-SIALON SINTERED BODY

Document Type and Number:

Japanese Patent JPS589881

Kind Code:

A

Abstract:

A process for producing a translucent beta -sialon sintered product, which comprises mixing fine powders of silicon nitride and aluminum nitride having a high purity of at least 99% and a particle size of at most 200 microns and fine powders of aluminum oxide and silicon oxide having a high purity of at least 99% in such a proportion as to form beta -sialon of the formula Si6-zAlzOzN8-z where z is from 1 to 4.2, and hot-pressing the mixture in a nitrogen atmosphere at a temperature of from 1500 DEG to 1850 DEG C. under pressure of from 10 to 1500 kg/cm2.

Inventors:

MITOMO MAMORU
MORIYOSHI YUUSUKE
SAKAI TOSHIKAZU
OOSAKA TOSHIAKI

Application Number:

JP10530181A

Publication Date:

January 20, 1983

Filing Date:

July 06, 1981

Export Citation:

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Assignee:

KAGAKU GIJUTSUCHO MUKIZAI

International Classes:

C04B35/626; C04B35/597; C04B35/599; (IPC1-7): C04B35/58

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