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Preparation of TiAl and Ti3Al Powders by Calciothermic Reduction of Oxides

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Title: Preparation of TiAl and Ti3Al Powders by Calciothermic Reduction of Oxides
Authors: Suzuki, R. O. Browse this author →KAKEN DB
Ikezawa, M. Browse this author
Okabe, T. H. Browse this author
Oishi, T. Browse this author
Ono, K. Browse this author
Keywords: TiAl
oxide mixture
calciothermic reduction
Ti-Al alloy
phase diagram
Issue Date: Jan-1990
Publisher: The Japan Institute of Metals
Journal Title: Materials Transactions, JIM
Volume: 31
Issue: 1
Start Page: 61
End Page: 68
Publisher DOI: 10.2320/matertrans1989.31.61
Abstract: The clean and fine Ti3Al and TiAl compound powders were produced directly from the oxide mixtures of TiO2 and Al2O3 by the calciothermic reduction using vapor calcium, liquid calcium or CaH2. This procedure consists of three steps: raw oxide blending, co-reduction and leaching. The history of the preparation of the oxide mixtures had no effect on the production of the powders of a desired composition. The use of CaH2 powder for the reduction gave better results than that of the other reductants on the oxygen contents in the reduced powders. The indication on stoichiometric control in this procedure is thermodynamically discussed.
Type: article
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: 鈴木 亮輔

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