Fabrication of lotus-type porous Ni3Al intermetallics

被引：15

作者：

Hyun, SK ^{[1
]}

Ikeda, T ^{[1
]}

Nakajima, H ^{[1
]}

机构：

[1] Osaka Univ, Inst Sci & Ind Res, Ibaraki 5670047, Japan

来源：

JOURNAL OF THE JAPAN INSTITUTE OF METALS | 2004年 / 68卷 / 02期

关键词：

porous materials; intermetallics; nickel aluminide; solidification; porosity;

D O I：

10.2320/jinstmet.68.39

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Lotus-type porous Ni(3)AI intermetallics (Ni-15 mol%Al, Ni-28 mol%Al and Ni-31 mol%Al) whose long cylindrical pores are aligned in one direction have been fabricated by unidirectional solidification of the melt in a pressurized hydrogen gas. The porosity and the pore size are decreased with increasing aluminum content. An increase of solidification velocity from 0.33 to 0.50 mms(-1) leads to a decrease of pore diameter and an increase of pore number in lotus-type porous Ni-28 mol% Al.

引用

页码：39 / 42

页数：4

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