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FeAl-TiB2系複合材の擬HIP燃焼合成

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Title: FeAl-TiB2系複合材の擬HIP燃焼合成
Other Titles: Pseudo-HIP Combustion Synthesis of FeAl-TiB2 Composites
Authors: 小原, 裕樹1 Browse this author
工藤, 昌行2 Browse this author
松浦, 清隆3 Browse this author →KAKEN DB
Authors(alt): Obara, Yuki1
Kudoh, Masayuki2
Matsuura, Kiyotaka3
Keywords: ceramic
composite
hot isostatic pressing
intermetallic compound
powder metallurgy
self-propagating high-temperature synthesis
Issue Date: 25-Nov-2006
Publisher: 日本鋳造工学会
Journal Title: 鋳造工学
Volume: 78
Issue: 11
Start Page: 563
End Page: 569
Abstract: When powder mixtures of Fe, Al, Ti and B were heated, sudden and rapid temperature rise was always observed at temperatures near the melting point of Al, and the powder mixtures melted. X-ray diffraction analyses revealed that the reaction products consisted of only FeAl and TiB2. Based on metallographic investigations and electron probe microanalyses, it was found that fine TiB2 particle dispersed FeAl-based composites were synthesized by the above-mentioned exothermic reaction, although the composites included a lot of pores. The use of pseudo-isostatic pressure during the exothermic reaction brought about dramatic reduction in porosity. When the volume fraction of the TiB2 particles increased, their average diameter increased. The increase in the volume fraction of the TiB2 particles also brought about the increase in the Vickers hardness and the volume fraction of pores. The volume fraction of pores was markedly reduced by preheating the powder mixture in vacuum.
Type: article
URI: http://hdl.handle.net/2115/75710
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 松浦 清隆

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