The effect of ZrO2 nanoparticles on TiO2-Al-C combustion synthesis system

被引：17
|
作者：
Dong, Q [1 ]
Tang, Q
Li, WC
Wu, DY
机构：
[1] Chinese Acad Sci, Inst Chem Met, Beijing 100080, Peoples R China
[2] Univ Sci & Technol Beijing, Dept Chem Phys, Beijing 100083, Peoples R China
来源：
MATERIALS LETTERS | 2002年 / 55卷 / 04期
基金：
中国国家自然科学基金;
关键词：
combustion synthesis; TiO2-Al-C-ZrO2; ZrO2; nanoparticles; addition; Al2O3-TiC-ZrO2; nanocomposites;
D O I：
10.1016/S0167-577X(01)00657-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of an addition of ZrO2 nanoparticles on the TiO2-Al-C combustion synthesis system was investigated. The result of thermodynamic calculation shows that about 10 wt.% ZrO2 nanoparticles addition reduces the T-ad from 2398 to 2327 K (the melting point of Al2O3). The fraction of molten Al2O3 varied from 100% to 78% with the addition of ZrO2 in the range of 0 - 15 wt.%. The combustion velocity u and the mass combustion velocity G decrease with the increasing content Of ZrO2 nanoparticles. The combustion product is a mixture of Al2O3, TiC and ZrO2. Al2O3-TiC-ZrO2 nanocomposites were synthesized by reactions in TiO2-Al-C-ZrO2 Combustion synthesis system. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：259 / 264
页数：6
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