Synthesis of single-phase polycrystalline Ca2Si powder and sintered compacts-Reference-Cited by-同舟云学术

Synthesis of single-phase polycrystalline Ca2Si powder and sintered compacts

Published:2011-04-01 Issue:4 Volume:102 Page:401-405
ISSN:2195-8556
Container-title:International Journal of Materials Research
language:en
Short-container-title:

Author:

Wen Cuilian¹,Nonomura Tomomi²,Warashina Yoshifumi²,Kubota Yoshihiro²,Nakamura Tamotsu²,Hayakawa Yasuhiro³,Tanaka Miyoko⁴,Isobe Kenji⁵,Tatsuoka Hirokazu¹²

Affiliation:

1. Shizuoka University, Graduate School of Science and Technology, Hamamatsu, Japan

2. Shizuoka University, Faculty of Engineering, Hamamatsu, Japan

3. Shizuoka University, Research Institute of Electronics, Hamamatsu, Japan

4. National Institute for Materials Science, Tsukuba, Japan

5. Industrial Research Institute of Shizuoka Prefecture, Hamamatsu, Japan

Abstract

Abstract Orthorhombic polycrystalline Ca2Si sintered compact bulk crystals were synthesized via a two-step treatment, and the experimental evaluation of the electrical and thermoelectric properties of Ca2Si is reported for the first time. First, single-phase Ca2Si powders were synthesized by the heat treatment of Mg2Si powders under a Ca vapor. Then Ca2Si sintered compacts were synthesized by the spark plasma sintering technique using the Ca2Si powders. It was found that single-phase Ca2Si sintered compacts were obtained when the sintering was carried out at temperatures lower than 673 K with high pressure of 300 MPa. The structural, electrical and thermoelectric properties of the Ca-silicide sintered compacts and their dependence on process conditions are discussed.

Publisher

Walter de Gruyter GmbH

Subject

Materials Chemistry,Metals and Alloys,Physical and Theoretical Chemistry,Condensed Matter Physics

Link

https://www.degruyter.com/document/doi/10.3139/146.110492/pdf

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