Processing of three-dimensional metallic microchannels by spacer method

Processing of three-dimensional metallic microchannels by spacer method

Metallic microchannels with a three-dimensional (3D) configuration were fabricated by the spacer method. When spacing aluminum wires were shaped into a 3D-spiral configuration in an initial powder compact, they were easily replicated after the sintering and dissolution, resulting in 3D-spiral microc...

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Veröffentlicht in:Materials letters 2008-03, Vol.62 (6-7), p.1118-1121
Hauptverfasser: Hakamada, Masataka, Asao, Yuuki, Kuromura, Tetsumune, Chen, Youqing, Kusuda, Hiromu, Mabuchi, Mamoru
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Sprache:eng
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Metals and alloys
Microchannel
Sintering
Spacer method
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container_end_page 1121
container_issue 6-7
container_start_page 1118
container_title Materials letters
container_volume 62
creator Hakamada, Masataka
Asao, Yuuki
Kuromura, Tetsumune
Chen, Youqing
Kusuda, Hiromu
Mabuchi, Mamoru
description Metallic microchannels with a three-dimensional (3D) configuration were fabricated by the spacer method. When spacing aluminum wires were shaped into a 3D-spiral configuration in an initial powder compact, they were easily replicated after the sintering and dissolution, resulting in 3D-spiral microchannels in a bulky copper body. This suggests that the spacer method is an effective way of fabricating complex 3D configuration microchannels, compared to conventional fabrication methods, for example, aligning and stacking two-dimensional microchannel layers. The compaction conditions for initial powder compacts, such as compaction pressure, spacing materials and compaction mode (uniaxial or isostatic), severely influence the shape and surface roughness of the resulting microchannels.
doi_str_mv 10.1016/j.matlet.2007.07.060
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subjects Metals and alloys
Microchannel
Sintering
Spacer method
title Processing of three-dimensional metallic microchannels by spacer method
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