Addition of Al-Ti-C master alloys and diopside to improve the performance of alumina matrix ceramic materials

被引：17
作者：
Liu, Changxia [1 ]
Zhang, Jianhua
Sun, Junlong
Zhang, Xihua
Hu, Yujing
机构：
[1] Shandong Univ, Dept Mech Engn, Jinan 250061, Shandong Prov, Peoples R China
[2] Ludong Univ, Commun Inst, Yantai 264025, Shandong Prov, Peoples R China
[3] Shandong Univ, Dept Mat Sci & Engn, Jinan 250061, Shandong Prov, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2007年 / 33卷 / 07期
关键词：
composites; alumina; Al-Ti-C master alloys; toughening;
D O I：
10.1016/j.ceramint.2006.03.018
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In the present work, Al-Ti-C master alloys and diopside are introduced in alumina matrix ceramic materials. Composites are fabricated by the technology of transient liquid phase sintering, during which new phases such as Al6Si2O13, AIN and CaO.6Al(2)O(3) are produced by the chemical reactions taking place among alumina and the additives. The densification rate of the composites as a function of Al-Ti-C volume content is discussed. The hardness, the fracture toughness and the bending strength of the composites are tested. Meanwhile, the effects of additives on mechanical properties and fracture mechanism of alumina matrix ceramic materials are analyzed and discussed together with the refining performances of Al-Ti-C master alloys. (c) 2006 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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页码：1149 / 1154
页数：6
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