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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9601795 B1

PDFFull Text
Date of Patent:
Mar. 21, 2017

Filed:

Oct. 22, 2010

Process for production of scandia-stabilized zirconia sheet, scandia-stabilized zirconia sheet obtained by the process, and scandia-stabilized zirconia sintered powder

Applicants:

Kazuo Hata, Suita, JP;

Norikazu Aikawa, Himeji, JP;

Inventors:

Kazuo Hata, Suita, JP;

Norikazu Aikawa, Himeji, JP;

Assignee:

NIPPON SHOKUBAI CO., LTD., Osaka, JP;

Attorney:

Masuvalley & Partners

Primary Examiner:

Nicholas P D'Aniello

Assistant Examiner:

Jimmy K Vo

Int. Cl.
CPC ...
H01M 8/10 (2016.01); H01M 8/12 (2016.01); C04B 35/486 (2006.01); C04B 35/626 (2006.01); C04B 35/632 (2006.01); C04B 35/634 (2006.01); C04B 35/636 (2006.01);
U.S. Cl.
CPC ...
H01M 8/1253 (2013.01); C04B 35/486 (2013.01); C04B 35/6261 (2013.01); C04B 35/6262 (2013.01); C04B 35/6263 (2013.01); C04B 35/6264 (2013.01); C04B 35/62655 (2013.01); C04B 35/632 (2013.01); C04B 35/6365 (2013.01); C04B 35/63416 (2013.01); C04B 35/63424 (2013.01); C04B 2235/3217 (2013.01); C04B 2235/3224 (2013.01); C04B 2235/3229 (2013.01); C04B 2235/3232 (2013.01); C04B 2235/3246 (2013.01); C04B 2235/3298 (2013.01); C04B 2235/5409 (2013.01); C04B 2235/5436 (2013.01); C04B 2235/5445 (2013.01); C04B 2235/5481 (2013.01); C04B 2235/6025 (2013.01); C04B 2235/72 (2013.01); C04B 2235/76 (2013.01); C04B 2235/762 (2013.01); C04B 2235/77 (2013.01); C04B 2235/96 (2013.01); C04B 2235/963 (2013.01); C04B 2235/9615 (2013.01); C04B 2235/9638 (2013.01); H01M 2008/1293 (2013.01); H01M 2300/0077 (2013.01); Y02E 60/525 (2013.01); Y02P 70/56 (2015.11); Y10T 428/2982 (2015.01);
Abstract

The present invention relates to a method of producing a scandia-stabilized zirconia sheet. The method includes the steps of: (1) pulverizing a scandia-stabilized zirconia sintered body to obtain a sintered scandia-stabilized zirconia powder having an average particle diameter (De), determined by a transmission electron microscope, in the range of 0.3-1.5 μm, and an average particle diameter (Dr), determined by a laser scattering method, in the range of 0.3-3.0 μm, where a ratio of Dr/De is at least 1.0-2.5; (2) preparing a slurry containing the sintered scandia-stabilized zirconia powder and an unsintered zirconia powder, where a percentage of the sintered scandia-stabilized zirconia powder to a sum of the sintered scandia-stabilized zirconia powder and the unsintered zirconia powder in the slurry is at least 2 mass % and at most 40 mass %; (3) molding the slurry into a green sheet; and (4) sintering the green sheet.

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