Fabrication and pore structure characteristics of porous Fe-Al intermetallics

Hai Yan Gao; Yue Hui He; Pei Zhi Shen; Yao Jiang; Bai Yun Huang; Nan Ping Xu

Fabrication and pore structure characteristics of porous Fe-Al intermetallics

Hai Yan Gao, Yue Hui He, Pei Zhi Shen, Yao Jiang, Bai Yun Huang, Nan Ping Xu

College of Chemical Engineering

Central South University

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

Porous FeAl intermetallics has been prepared through step pressureless reactive synthesis using Fe, Al powder as raw materials and the pore structure of porous FeAl has been characterized. The effect of Al content on the permeability, maximum pore size and porosity of porous FeAl intermetallics has also been studied through change the proportion of Fe and Al elemental powder. The results show that the Al content is one of the main factors for the porosity, and strictly linear increment rule between the porosity and Al content is confirmed in Fe-Al intermetallics with the Al content ranging from 20%~45% (mass fraction). The effect of Al content on permeability and maximum pore size is similar as that on porosity. The permeability (K), the open porosity (θ) and maximum aperture (d_m) have the relationship of K = 0.2538d_m²θ.

Original language	English
Pages (from-to)	275-280
Number of pages	6
Journal	Fenmo Yejin Cailiao Kexue yu Gongcheng/Materials Science and Engineering of Powder Metallurgy
Volume	14
Issue number	4
State	Published - Aug 2009

Keywords

Fe-Al
Intermetallics
Pore structure
Porous material
Raw material composition

Cite this

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title = "Fabrication and pore structure characteristics of porous Fe-Al intermetallics",

abstract = "Porous FeAl intermetallics has been prepared through step pressureless reactive synthesis using Fe, Al powder as raw materials and the pore structure of porous FeAl has been characterized. The effect of Al content on the permeability, maximum pore size and porosity of porous FeAl intermetallics has also been studied through change the proportion of Fe and Al elemental powder. The results show that the Al content is one of the main factors for the porosity, and strictly linear increment rule between the porosity and Al content is confirmed in Fe-Al intermetallics with the Al content ranging from 20%~45% (mass fraction). The effect of Al content on permeability and maximum pore size is similar as that on porosity. The permeability (K), the open porosity (θ) and maximum aperture (dm) have the relationship of K = 0.2538dm2θ.",

keywords = "Fe-Al, Intermetallics, Pore structure, Porous material, Raw material composition",

author = "Gao, {Hai Yan} and He, {Yue Hui} and Shen, {Pei Zhi} and Yao Jiang and Huang, {Bai Yun} and Xu, {Nan Ping}",

year = "2009",

month = aug,

language = "英语",

volume = "14",

pages = "275--280",

journal = "Fenmo Yejin Cailiao Kexue yu Gongcheng/Materials Science and Engineering of Powder Metallurgy",

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publisher = "Central South University",

number = "4",

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TY - JOUR

T1 - Fabrication and pore structure characteristics of porous Fe-Al intermetallics

AU - Gao, Hai Yan

AU - He, Yue Hui

AU - Shen, Pei Zhi

AU - Jiang, Yao

AU - Huang, Bai Yun

AU - Xu, Nan Ping

PY - 2009/8

Y1 - 2009/8

N2 - Porous FeAl intermetallics has been prepared through step pressureless reactive synthesis using Fe, Al powder as raw materials and the pore structure of porous FeAl has been characterized. The effect of Al content on the permeability, maximum pore size and porosity of porous FeAl intermetallics has also been studied through change the proportion of Fe and Al elemental powder. The results show that the Al content is one of the main factors for the porosity, and strictly linear increment rule between the porosity and Al content is confirmed in Fe-Al intermetallics with the Al content ranging from 20%~45% (mass fraction). The effect of Al content on permeability and maximum pore size is similar as that on porosity. The permeability (K), the open porosity (θ) and maximum aperture (dm) have the relationship of K = 0.2538dm2θ.

AB - Porous FeAl intermetallics has been prepared through step pressureless reactive synthesis using Fe, Al powder as raw materials and the pore structure of porous FeAl has been characterized. The effect of Al content on the permeability, maximum pore size and porosity of porous FeAl intermetallics has also been studied through change the proportion of Fe and Al elemental powder. The results show that the Al content is one of the main factors for the porosity, and strictly linear increment rule between the porosity and Al content is confirmed in Fe-Al intermetallics with the Al content ranging from 20%~45% (mass fraction). The effect of Al content on permeability and maximum pore size is similar as that on porosity. The permeability (K), the open porosity (θ) and maximum aperture (dm) have the relationship of K = 0.2538dm2θ.

KW - Fe-Al

KW - Intermetallics

KW - Pore structure

KW - Porous material

KW - Raw material composition

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M3 - 文章

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SN - 1673-0224

VL - 14

SP - 275

EP - 280

JO - Fenmo Yejin Cailiao Kexue yu Gongcheng/Materials Science and Engineering of Powder Metallurgy

JF - Fenmo Yejin Cailiao Kexue yu Gongcheng/Materials Science and Engineering of Powder Metallurgy

IS - 4

ER -

Fabrication and pore structure characteristics of porous Fe-Al intermetallics

Abstract

Keywords

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