Structure of Ni-Al Intermetallic Porous Thick Films Produced by Microscopic Reactive Infiltration

Abstract:

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A microchanneling process utilizing microscopic reactive infiltration produces microchannels and alloy lining layers in metal bodies. We examined the composition and structure of a Ni-Al intermetallic lining layer with a peculiar porous structure produced by Ni-Al reactive infiltration. The Ni-Al lining layer is a thick film consists of multiple sub-layers and has many micropores. Such a porous structure and the heat resistance of Ni-Al intermetallic compound are appropriate for a catalyst support in high-temperature use. Image analysis and EPMA revealed that both aluminum concentration and voidage in the Ni-Al lining layer show a graded distribution along the thickness direction of the lining layer.

Info:

Periodical:

Materials Science Forum (Volumes 631-632)

Edited by:

Akira Kawasaki, Akinaga Kumakawa and Masayuki Niino

Pages:

345-350

DOI:

10.4028/www.scientific.net/MSF.631-632.345

Citation:

N. Hayashi et al., "Structure of Ni-Al Intermetallic Porous Thick Films Produced by Microscopic Reactive Infiltration", Materials Science Forum, Vols. 631-632, pp. 345-350, 2010

Online since:

October 2009

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Price:

$35.00

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