METHOD OF SINTERING AND FORMING ANISOTROPIC POROUS SILICON NITRIDE-BASED CERAMIC
PROBLEM TO BE SOLVED: To provide a method of manufacturing an anisotropic silicon nitride- based ceramic borous body. SOLUTION: This method of manufacturing a porous silicon nitride-based ceramic sintered formed body which has good strength and/or breaking energy characteristically comprises heating...
Gespeichert in:
Hauptverfasser: | , |
---|---|
Format: | Patent |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a method of manufacturing an anisotropic silicon nitride- based ceramic borous body. SOLUTION: This method of manufacturing a porous silicon nitride-based ceramic sintered formed body which has good strength and/or breaking energy characteristically comprises heating a green compact of silicon nitride raw material powders, a precursor compact, a preform and a casting form, etc., generating rod-shaped particles of silicon nitride in the green compact without excessive densification, thereafter carrying out one to multiple step of sintering/ forming processes, generating plastic flow at least in one part, controlling direction of crystal grains of each part of the sintered form in a predetermined direction and controlling arbitrarily the density of the sintered form. |
---|