alpha-SIALON SINTERED COMPACT AND ITS MANUFACTURING METHOD

PROBLEM TO BE SOLVED: To provide a manufacturing method of an α-sialon sintered compact having a high toughness and hardness, and the α-sialon sintered compact. SOLUTION: The α-sialon sintered compact is manufactured by preparing a molded product made of a mixed powder for producing α-sialon corresp...

Full description

Saved in:
Bibliographic Details
Main Authors MARK IAN JONES, KAGA YOICHIRO, HIRAO KIYOSHI
Format Patent
LanguageEnglish
Published 28.04.2005
Edition7
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
Online AccessGet full text

Cover

More Information
Summary:PROBLEM TO BE SOLVED: To provide a manufacturing method of an α-sialon sintered compact having a high toughness and hardness, and the α-sialon sintered compact. SOLUTION: The α-sialon sintered compact is manufactured by preparing a molded product made of a mixed powder for producing α-sialon corresponding to the formula: Rx(Si, Al)12(O, N)16(wherein 0.33<x<0.67; and R is a rare-earth element) and sintering this in a nitrogen-containing atmosphere at 1,700-1,950°C under a normal pressure. The mixed powder comprises ≥80 wt.% and <97 wt.% mixture comprising silicon nitride, alumina, aluminum nitride and an oxide of the rare-earth element and ≥3 wt.% and <20 wt.% mixture comprising silica and the oxide of the rare-earth element. The manufacturing method of the sintered compact is also provided. COPYRIGHT: (C)2005,JPO&NCIPI
Bibliography:Application Number: JP20030347139