Sodium niobate powder, method for producing the same, method for producing ceramic, and piezoelectric element

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United States of America Patent

PATENT NO 9231189
APP PUB NO 20150062257A1
SERIAL NO

14394494

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Abstract

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A sodium niobate powder includes sodium niobate particles having a shape of a cuboid and having a side average length of 0.1 μm or more and 100 μm or less, wherein at least one face of each of the sodium niobate particles is a (100) plane in the pseudocubic notation and a moisture content of the sodium niobate powder is 0.15 mass % or less. A method for producing a ceramic using the sodium niobate powder is provided. A method for producing a sodium niobate powder includes a step of holding an aqueous alkali dispersion liquid containing a niobium component and a sodium component at a pressure exceeding 0.1 MPa, a step of isolating a solid matter from the aqueous dispersion liquid after the holding, and a step of heat treating the solid matter at 500° C. to 700° C.

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Patent Owner(s)

Patent OwnerAddress
CANON KABUSHIKI KAISHATOKYO JAPAN DAEJEON 3 MEATBALLS 30 2 TOKYO TOKYO METROPOLIS

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aiba, Toshiaki Fujisawa, JP 31 492
Furuta, Tatsuo Machida, JP 101 448
Hayashi, Jumpei Yokohama, JP 65 394
Ifuku, Toshihiro Yokohama, JP 70 642
Kubota, Makoto Yokohama, JP 219 2960
Masubuchi, Tomoaki Yokosuka, JP 2 6
Watanabe, Takayuki Yokohama, JP 316 3383

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