Effect of heating rate on pore structure of porous FeAl material

被引：29

作者：

Gao, H. Y. ^{[1
]}

He, Y. H. ^{[1
]}

Shen, P. Z. ^{[1
]}

Xu, N. P. ^{[2
]}

Zou, J. ^{[3
,4
]}

Jiang, Y. ^{[1
]}

Huang, B. Y. ^{[1
]}

Liu, C. T. ^{[5
]}

机构：

[1] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China

[2] Nanjing Univ Technol, Membrane Sci & Technol Res Ctr, Nanjing 210009, Peoples R China

[3] Univ Queensland, Sch Engn, Brisbane, Qld 4072, Australia

[4] Univ Queensland, Ctr Microscopy & Microanal, Brisbane, Qld 4072, Australia

[5] Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA

来源：

POWDER METALLURGY | 2008年 / 51卷 / 02期

关键词：

FeAl intermetallics; porous material; heating rate; Kirkendall effect;

D O I：

10.1179/174329008X271673

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The sintering behaviour of elemental powders of Fe and Al was investigated at various heating rates (0.5-10 degrees C min(-1)). It was found that the formation of porous FeAl material was accompanied by the volume expansion during the formation of the intermediate phase Fe2Al5. The final pore structure of porous FeAl material depends strongly on the heating rate; the higher the heating rate, the higher the volume expansion and the larger the porosity and the maximum pore size. It has been found that the pore structures produced with different heating rates experienced different formation routes.

引用

页码：171 / 175

页数：5

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