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Low-temperature fabrication of BaBi2Nb2O9 ceramics by reaction controlled sintering

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Title: Low-temperature fabrication of BaBi2Nb2O9 ceramics by reaction controlled sintering
Authors: Shigyo, Tatsuhiro Browse this author
Itoh, Hidenobu Browse this author
Takahashi, Junichi Browse this author →KAKEN DB
Keywords: BaBi2Nb2O9
reaction controlled sintering
low-temperature sintering
phase formation
Issue Date: Mar-2010
Publisher: Springer New York
Journal Title: Journal of Materials Science: Materials in Electronics
Volume: 21
Issue: 3
Start Page: 302
End Page: 308
Publisher DOI: 10.1007/s10854-009-9910-7
Abstract: Reaction controlled sintering was applied to the fabrication of BaBi2Nb2O9 (BBN) ceramics at lower temperature. A powder mixture of BaCO3 and Nb2O5 was heated at 600℃ in a 1st step calcination to produce a binary precursor of BaNb2O6. The pre-heated powder was then mixed with a fixed amount of Bi2O3, which was subsequently pressed into a disk pellet. After a powder compact of the mixture was subjected to heating at 950℃ for 4 h, a BBN bulk sample with a relative density of 92% was successfully obtained. The low-temperature fabrication of dense BBN ceramics could be attributed to the inhibited formation of an intermediate phase of Ba5Nb4O15 and the production of submicron powder with an appropriate reactivity during a 1st step calcination.
Rights: The final publication is available at
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: 高橋 順一

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