Development of a new graded-porosity FeAl alloy by elemental reactive synthesis

P. Z. Shen; Y. H. He; H. Y. Gao; J. Zou; N. P. Xu; Y. Jiang; B. Y. Huang; C. T. Liu

doi:10.1016/j.desal.2009.06.012

Development of a new graded-porosity FeAl alloy by elemental reactive synthesis

P. Z. Shen, Y. H. He, H. Y. Gao, J. Zou, N. P. Xu, Y. Jiang, B. Y. Huang, C. T. Liu

College of Chemical Engineering

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

34 Scopus citations

Abstract

A new graded-porosity FeAl alloy can be fabricated through Fe and Al elemental reactive synthesis. FeAl alloy with large connecting open pores and permeability were used as porous supports. The coating was obtained by spraying slurries consisting of mixtures of Fe powder and Al powder with 3-5 μm diameter onto porous FeAl support and then sintered at 1100 °C. The performances of the coating were compared in terms of thickness, pore diameter and permeability. With an increase in the coating thickness up to 200 μm, the changes of maximum pore size decreased from 23.6 μm to 5.9 μm and the permeability decreased from 184.2 m³ m^{- 2} kPa^{- 1} h^{- 1} to 76.2 m³ m^{- 2} kPa^{- 1} h^{- 1}, respectively, for a sintering temperature equal to 1100 °C. The composite membranes have potential application for excellent filters in severe environments.

Original language	English
Pages (from-to)	29-33
Number of pages	5
Journal	Desalination
Volume	249
Issue number	1
DOIs	https://doi.org/10.1016/j.desal.2009.06.012
State	Published - 30 Nov 2009

Keywords

Coating
FeAl
Graded structure
Porous material

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10.1016/j.desal.2009.06.012

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title = "Development of a new graded-porosity FeAl alloy by elemental reactive synthesis",

abstract = "A new graded-porosity FeAl alloy can be fabricated through Fe and Al elemental reactive synthesis. FeAl alloy with large connecting open pores and permeability were used as porous supports. The coating was obtained by spraying slurries consisting of mixtures of Fe powder and Al powder with 3-5 μm diameter onto porous FeAl support and then sintered at 1100 °C. The performances of the coating were compared in terms of thickness, pore diameter and permeability. With an increase in the coating thickness up to 200 μm, the changes of maximum pore size decreased from 23.6 μm to 5.9 μm and the permeability decreased from 184.2 m3 m- 2 kPa- 1 h- 1 to 76.2 m3 m- 2 kPa- 1 h- 1, respectively, for a sintering temperature equal to 1100 °C. The composite membranes have potential application for excellent filters in severe environments.",

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AU - Shen, P. Z.

AU - He, Y. H.

AU - Gao, H. Y.

AU - Zou, J.

AU - Xu, N. P.

AU - Jiang, Y.

AU - Huang, B. Y.

AU - Liu, C. T.

PY - 2009/11/30

Y1 - 2009/11/30

N2 - A new graded-porosity FeAl alloy can be fabricated through Fe and Al elemental reactive synthesis. FeAl alloy with large connecting open pores and permeability were used as porous supports. The coating was obtained by spraying slurries consisting of mixtures of Fe powder and Al powder with 3-5 μm diameter onto porous FeAl support and then sintered at 1100 °C. The performances of the coating were compared in terms of thickness, pore diameter and permeability. With an increase in the coating thickness up to 200 μm, the changes of maximum pore size decreased from 23.6 μm to 5.9 μm and the permeability decreased from 184.2 m3 m- 2 kPa- 1 h- 1 to 76.2 m3 m- 2 kPa- 1 h- 1, respectively, for a sintering temperature equal to 1100 °C. The composite membranes have potential application for excellent filters in severe environments.

AB - A new graded-porosity FeAl alloy can be fabricated through Fe and Al elemental reactive synthesis. FeAl alloy with large connecting open pores and permeability were used as porous supports. The coating was obtained by spraying slurries consisting of mixtures of Fe powder and Al powder with 3-5 μm diameter onto porous FeAl support and then sintered at 1100 °C. The performances of the coating were compared in terms of thickness, pore diameter and permeability. With an increase in the coating thickness up to 200 μm, the changes of maximum pore size decreased from 23.6 μm to 5.9 μm and the permeability decreased from 184.2 m3 m- 2 kPa- 1 h- 1 to 76.2 m3 m- 2 kPa- 1 h- 1, respectively, for a sintering temperature equal to 1100 °C. The composite membranes have potential application for excellent filters in severe environments.

KW - Coating

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KW - Graded structure

KW - Porous material

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Development of a new graded-porosity FeAl alloy by elemental reactive synthesis

Abstract

Keywords

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