Reaction Synthesis of TiAl-Al2O3 Composite

Reaction Synthesis of TiAl-Al2O3 Composite
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TiAl-Al2O3复合材料的反应合成

DOI:
10.4028/www.scientific.net/kem.336-338.1397
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发表时间:
2007-04
期刊:
Key engineering material
影响因子:
--
通讯作者:
Fen Wang
Fen Wang
中科院分区:
其他
文献类型:
--
作者:
Jian Feng Zhu;JiQiang Gao;Fen Wang

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以TiO 2、Al和Ti粉为原料,采用反应热压法制备了亚微米Al 2 O3增强的钛铝化物复合材料。重点研究了反应合成工艺。结果表明:该材料的基体为TiAl和少量Ti 3Al的混合物。作为增强相的细Al 2 O 3颗粒沿基体的界面沿着分散。TiO_2的还原过程包括Ti-Al反应、TiO_2-Ti还原反应、TiO_2与Al反应等过渡阶段。
Titanium aluminide composite reinforced with submicron Al2O3 has been prepared by a reactive hot press method using TiO2, Al and Ti powder as source materials. The reaction synthesis processing is particularly investigated. Results show that the matrix of the as-prepared material is a mixture of TiAl and a small amount of Ti3Al. Fine Al2O3 particles that act as reinforcing phase are dispersed along the interface of the matrix. The reduction of TiO2 involves many transitional stages, including Ti-Al reaction, TiO2-Ti reducing reaction, reaction between TiO2 and Al, etc.
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影响因子: 4.4
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