Thermal Conductivity of Mullite/Al2O3 Ceramics Sintered with Li2O, CaO and Y2O3
-
Published:2006-02
Issue:
Volume:11-12
Page:129-132
-
ISSN:1662-8985
-
Container-title:Advanced Materials Research
-
language:
-
Short-container-title:AMR
Author:
Li You Fen1,
Liu Qing2,
Liu Wei Wei1,
Li Min1
Affiliation:
1. Beijing University of Chemical Technology
2. Tianjin University
Abstract
Dense Mullite/Al2O3 ceramics with a thermal conductivity of 45 W/m.K were obtained at
the sintering temperature of 1500°C using Li2O, CaO and Y2O3 as additives. At temperature below
1500°C, the shrinkage of Mullite/Al2O3 ceramics is promoted by liquid LiAlSi2O6 and Al2Y4O9.
Liquid LiAlSi2O6 mainly improves the densification of the sample when the sintering temperature
increases to 1500°C. The formation of liquid phase at a relatively low temperature results in
homogeneous Al2Y4O9 and Ca(Al2Si2O8) distributed around the Mullite/Al2O3 particles, which
benefits the thermal conductivity improved.
Publisher
Trans Tech Publications, Ltd.
Subject
General Engineering
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献
1. Carotid body function in heart failure;Respiratory Physiology & Neurobiology;2007-07