作者：FAGHIHI SANI M.A.;AKIRA YAMAGUCHI;

作者单位：athology.ufl.edu;athology.ufl.edu

刊名：Taikabutsu Overseas

ISSN：0285-0028

出版年：2001-01-05

卷：21

期：3

起页：213

止页：0

分类号：TQ175

语种：英文

关键词：

内容简介

The usage of unshaped (monolithic) refractories in many industrial applications has increased significantly, and now exceeds that of shaped refractories. Of the monolithic refractory types, castables are the most widely used products. In this work, the in-situ formation of spinel-carbon (MgAl_2O_4 - C) aggregate, for monolithic applications, was investigated.Spinel-C aggregate was prepared by a two-step heating process of MgO-Al compacts in a CO atmosphere. The precipitated carbon was almost amorphous and finely distributed among the spinel phase. Because of its low degree of crystallinity, the precipitated carbon showed lower oxidation resistance than crystalline graphite.