Low-temperature fabrication of NiCuZn Ferrite^|^ndash;(Ba0.7Sr0.3)TiO3 composites using granulated powders

Kitahara, Naoto; Kageyama, Hiroaki; Kawasaki, Tomoya; Abe, Kazutomo; Itoh, Hidenobu; Takahashi, Junichi

Low-temperature fabrication of NiCuZn Ferrite^|^ndash;(Ba0.7Sr0.3)TiO3 composites using granulated powders

Kitahara, Naoto; Kageyama, Hiroaki; Kawasaki, Tomoya et al.

Journal of the Ceramic Society of Japan, 2013, 121(1409), 54-61

Permalink : https://hdl.handle.net/2115/57325

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アクセス権	open access
URI	https://hdl.handle.net/2115/57325
タイトル	Low-temperature fabrication of NiCuZn Ferrite^\|^ndash;(Ba0.7Sr0.3)TiO3 composites using granulated powders
著者	Kitahara, Naoto ; Kageyama, Hiroaki ; Kawasaki, Tomoya ; Abe, Kazutomo ; Itoh, Hidenobu ; Takahashi, Junichi
著者名 Kitahara, Naoto
著者名 Kageyama, Hiroaki
著者名 Kawasaki, Tomoya
著者名 Abe, Kazutomo
著者名 Itoh, Hidenobu
e-Rad_Researcher 40110259 著者名 Takahashi, Junichi
言語	英語
キーワード	NiCuZn ferrite
	(Ba0.7Sr0.3)TiO3
	Composite ceramics
	Granulated powder
	Bi2O3-based additive
	Low-temperature sintering
発行日	2013
出版者	The Ceramic Society of Japan
収録物名	Journal of the Ceramic Society of Japan
巻(号)	121(1409)
ページ	54-61
抄録	NiCuZn ferrite( Ba0.7Sr0.3)TiO3 (BST) composite ceramics with the BST content of up to 50 vol% were fabricated by sintering compacted powder mixtures at 900°C. The granulation of the BST powder and addition of a Bi2O3-based oxide additive effectively assisted the densification of the composite samples. The samples thus fabricated showed required ¾r values whereas their ®r values were considerably reduced, especially for those with lower BSTcontents. From the detailed examinations on the effect of the Bi2O3- based oxide additives and on the process modification to improve the reduced ®r values, the addition of a Bi2O3ZnO additive with the eutectic composition of as low as 1wt%was enough to produce a densified 10 vol%BSTcomposite sample with a highest ®r value. It was also found that the incorporation of ferrite granules calcined at 600°C caused further improvement of ®r. Thus, a densified 10BST composite sample with ®r = 125 was fabricated by low-temperature sintering at 900°C.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
PISSN	1882-0743
EISSN	1348-6535
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.2109/jcersj2.121.54