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Title:
NICKEL POWDER AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/187688
Kind Code:
A1
Abstract:
One of the problems addressed by the present invention is to provide: a nickel powder which has a high compacted density, and a small volume reduction under high temperature treatment; and a production method therefor. The nickel powder contains nickel particles, and among the Ni-Ni bonds, Ni-OH bonds, and Ni-O bonds derived from nickel oxide on the surface of the nickel particles, the proportion of Ni-Ni bonds is at least 50%, and the thermal shrinkage rate is at most 15% at 1200°C. The proportion of Ni-Ni bonds and the thermal shrinkage rate are estimated by X-ray photoelectron spectroscopy and thermomechanical analysis, respectively.

Inventors:
NISHIJIMA Kazumoto (3-3-5, Chigasaki, Chigasaki Cit, Kanagawa 10, 〒2538510, JP)
OHGURI Masato (3-3-5, Chigasaki, Chigasaki Cit, Kanagawa 10, 〒2538510, JP)
ASAI Tsuyoshi (3-3-5, Chigasaki, Chigasaki Cit, Kanagawa 10, 〒2538510, JP)
YOSHIDA Mitsugu (3-3-5, Chigasaki, Chigasaki Cit, Kanagawa 10, 〒2538510, JP)
Application Number:
JP2019/004468
Publication Date:
October 03, 2019
Filing Date:
February 07, 2019
Export Citation:
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Assignee:
TOHO TITANIUM CO., LTD. (3-3-5, Chigasaki Chigasaki Cit, Kanagawa 10, 〒2538510, JP)
International Classes:
B22F1/00; B22F1/02; B22F9/22; H01G4/30; H01M4/66; H01M4/80
Domestic Patent References:
WO2017122689A12017-07-20
Foreign References:
JP2004323866A2004-11-18
JP2016188419A2016-11-04
Attorney, Agent or Firm:
TAKAHASHI, HAYASHI AND PARTNER PATENT ATTORNEYS, INC. (Sonpo Japan Nipponkoa Kamata Building 9F, 5-24-2 Kamata Ota-k, Tokyo 52, 〒1440052, JP)
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