Effect of spodumene additions on the sintering and densification of aluminum titanate

被引：19

作者：

Shi, CG ^{[1
]}

Low, IM ^{[1
]}

机构：

[1] Curtin Univ Technol, Dept Appl Phys, Mat Res Grp, Perth, WA 6845, Australia

来源：

MATERIALS RESEARCH BULLETIN | 1998年 / 33卷 / 06期

关键词：

ceramics; X-ray diffraction; thermogravimetric analysis (TGA); mechanical properties;

D O I：

10.1016/S0025-5408(98)00061-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The use of beta-spodumene (Li2O . Al2O3 . 4SiO(2)) has been investigated as a liquid-phase sintering aid for the densification of aluminum titanate (AT) ceramics. XRD and DTA were used to characterize the effect of spodumene on the phase relations, sintering, and densification behavior of AT. The results show that the presence of spodumene significantly reduces the porosity and improves the densification of AT. The formation of sillimanite is observed for spodumene additions of 5 wt% or more. Spodumene-modified AT ceramics also have improved hardness and are expected to retain the excellent thermomechanical properties. (C) 1998 Elsevier Science Ltd.

引用

页码：817 / 824

页数：8

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