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Morphology control of beta-SiAlON via salt-assisted combustion synthesis

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Title: Morphology control of beta-SiAlON via salt-assisted combustion synthesis
Authors: Niu, Jing Browse this author
Harada, Kazuto Browse this author
Nakatsugawa, Isao Browse this author
Akiyama, Tomohiro Browse this author →KAKEN DB
Keywords: Powders
Combustion synthesis
Issue Date: Jan-2014
Publisher: Elsevier sci ltd
Journal Title: Ceramics international
Volume: 40
Issue: 1
Start Page: 1815
End Page: 1820
Publisher DOI: 10.1016/j.cerarnint.2013.07.082
Abstract: A facile salt-assisted combustion synthesis of beta-SiAlON and systematic characterization of the endothermic effects of addition of KCl, MgCl2, and CaCl2 were investigated under a nitrogen pressure of 1 MPa. Single-phase products containing crystals with different shapes were obtained. The results indicated that the metal chlorides act as perfect diluents that effectively absorb the reaction heat via their melting and evaporation, which occur in the same temperature ranges as the two stages of the exothermic processes. In addition, the products exhibited different morphologies when the type or amount of metal chlorides was changed. The results of this work suggest that single-phase beta-SiAlON could be fabricated with the intended morphology by simply adding different kinds of metal chlorides. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
Type: article (author version)
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: 秋山 友宏

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