PREPARATION OF MULLITE CERAMICS FROM KAOL IN AND ALUMINOUS MATERIALS .1. EFFECTS OF GRAIN-SIZE AND GRINDING OF RAW-MATERIALS

Authors
HAMANO K NAKAJIMA H OKUDA F KONUMA M
Citation
K. Hamano et al., PREPARATION OF MULLITE CERAMICS FROM KAOL IN AND ALUMINOUS MATERIALS .1. EFFECTS OF GRAIN-SIZE AND GRINDING OF RAW-MATERIALS, Nippon Seramikkusu Kyokai gakujutsu ronbunshi, 102(1), 1994, pp. 78-83
Citations number
5
Categorie Soggetti
Material Science, Ceramics
Journal title
Nippon Seramikkusu Kyokai gakujutsu ronbunshi → ACNP
ISSN journal
09145400
Volume
102
Issue
1
Year of publication
1994
Pages
78 - 83
Database
ISI
SICI code
0914-5400(1994)102:1<78:POMCFK>2.0.ZU;2-F
Abstract
In order to obtain corundum-free mullite ceramics from mixtures of kao lin and aluminous materials, effects of grinding of kaolin, particle s ize of alumina, and particles size, calcination and grinding of alumin um hydroxide on mullitization and densification were investigated. Gri nding of kaolin, use of fine alumina and aluminum hydroxide, and calci nation and grinding of aluminum hydroxide promoted the mullitization a nd densification. Firing these mixtures at temperatures higher than 15 00 degrees C yielded corundum-free, comparatively high strength mullit e ceramics.