Pore structure control for porous FeAl intermetallics

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Haiyan Gao
  • Yuehui He
  • Jin Zou
  • Nanping Xu
  • C. T. Liu

Detail(s)

Original languageEnglish
Pages (from-to)423-428
Journal / PublicationIntermetallics
Volume32
Publication statusPublished - Jan 2013
Externally publishedYes

Abstract

Pore structure control methods for porous FeAl intermetallics were studied in this paper based on pore formation mechanism. A large range of pore structure parameters can be obtained through fabrication parameter adjustment in porous FeAl preparation procedure. Open porosity and maximum pore size of porous FeAl have a direct proportional relationship to the powder size of raw materials and an inversely proportional relationship to the pressing pressure. The relationship between maximum pore size (d m) and raw material powder size (d p) can be determined as dm=0.40 dP. Open porosity and maximum pore size decrease with increasing holding time at solid diffusion reactive procedure. The quantitative relationship between open porosity (θ) and holding time (t) at 600 °C is θ=49.7-0. 1t(60≤t≤240); the quantitative relationship between maximum pore size (d m) and holding time (t) at 600 °C is dm=20.3-0. 065t(60≤t≤240). © 2012 Elsevier Ltd. All rights reserved.

Research Area(s)

  • A. Iron aluminides, C. Reaction synthesis

Citation Format(s)

Pore structure control for porous FeAl intermetallics. / Gao, Haiyan; He, Yuehui; Zou, Jin; Xu, Nanping; Liu, C. T.

In: Intermetallics, Vol. 32, 01.2013, p. 423-428.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review