摘要
研究了加入稀释剂Al2O3和过量Cr2O3对Al-Cr2O3体系燃烧合成反应温度和加热速度对起始反应温度的影响。确定了既可获得金属陶瓷熔体又易于实现燃烧合成的体系成分。通过燃烧合成和控制熔体冷却条件的凝固技术合理结合,制备了Cr相颗粒细小均匀分布于陶瓷基体的Cr-A(lCr)2O3金属陶瓷,该金属陶瓷具有较好的抗高温氧化性能。
The effects of adding the diluents Al2O3 and excessive Cr2O3 on the combustion synthesis reactive temperatures, and effects of heating rate on initial reactive temperatures in Al-Cr2O3 system were investigated. The compositions of the system were determined to get easily synthesized cermets melt and accomplish combustion synthesis. Cr-Al（Cr）2O3 cermets with fine Cr particles uniformly distributed in ceramic matrix have been successfully produced by combination of combustion synthesis and solidification technique of controlling the melt cooling condition. The cermets have relatively good oxidization resistance.
出处
《铸造》
EI
CAS
CSCD
北大核心
2006年第8期772-775,共4页
Foundry
基金
江苏省材料摩擦学重点实验室开放课题(编号KJS03008)
江苏省自然科学基金(编号BK2001014)。
关键词
金属陶瓷
燃烧合成
凝固技术
抗氧化性
cermets
combustion synthesis
solidification technique
oxidization resistance
