High pressure densification and dielectric properties of perovskite-type oxynitride SrTaO2N

Masubuchi, Yuji; Kawamura, Fumio; Taniguchi, Takashi et al.

Journal of the European Ceramic Society, 2015, 35(4), 1191-1197

Permalink : https://hdl.handle.net/2115/58051

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アクセス権
open access
URI
https://hdl.handle.net/2115/58051
タイトル
High pressure densification and dielectric properties of perovskite-type oxynitride SrTaO2N
著者
Masubuchi, Yuji ; Kawamura, Fumio ; Taniguchi, Takashi ; Kikkawa, Shinichi
e-Rad_Researcher
80466440
著者名
Masubuchi, Yuji
著者名
Kawamura, Fumio
著者名
Taniguchi, Takashi
著者名
Kikkawa, Shinichi
言語
英語
キーワード
SrTaO2N
Perovskite oxynitride
High pressure densification
Dielectric property
発行日
2015-04
出版者
Elsevier
収録物名
Journal of the European Ceramic Society
巻(号)
35(4)
ページ
1191-1197
抄録
Perovskite-type SrTaO2N was densified using a belt-type high pressure apparatus at 2.5-7.7 GPa with and without sample heating. The relative density of the samples treated at 2.5 GPa was 64% and was increased to 75% in those treated at 7.7 GPa without sample heating. The color of the compact changed from orange to brown with densification and the crystals were fractured to nanometer size grains. The density was increased up to 86% with heating above 800 degrees C at 7.7 GPa and the sample color changed to black, accompanied by electrically conductive nature. The permittivity of compacts that were densified to a relative density of around 75% with heating at 600 degrees C and without sample heating were 200 and 90 at 100 Hz, respectively.
資源タイプ
学術雑誌論文
出版タイプ
Accepted Manuscript
PISSN
0955-2219
関連情報 (isVersionOf)
出版社版DOI
https://doi.org/10.1016/j.jeurceramsoc.2014.10.028