Al-AlN tri-modal composites prepared by mechanical alloying

被引:0
|
作者
Ahn, Jung-Ho [1 ]
Kim, Yong-Jin [2 ]
Chung, Hyungsik [3 ]
机构
[1] Andong Natl Univ, Dept Mat Engn, Andong 760749, Gyungbuk, South Korea
[2] Korea Inst Machinery & Mat, Ctr Nanopowder Res, Gyungnam 610010, South Korea
[3] Ajou Univ, Dept Mat Engn, Suwon 443749, Gyunggi, South Korea
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中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Al/AlN particulate composites were prepared by mechanical alloying (MA) of Al powder in NH(3) or N(2) atmosphere. The AlN phase formed only by a combination of MA in NH(3) and subsequent sintering. To improve the mechanical properties of the resulting Al/AlN bimodal composites, the mechanically alloyed Al powder was mixed with pristine Al powder and sintered. This resulted in (Al/AlN)/Al trimodal particulate composites with interesting properties. The outer part of the composites was hardened during sintering, showing the possibility of surface hardening by simple sintering in Al alloys.
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页码:329 / 334
页数:6
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