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Title:
POLYCRYSTALLINE YAG SINTERED BODY AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/187287
Kind Code:
A1
Abstract:
This polycrystalline YAG sintered body is characterized by having a light loss coefficient of 0.002 cm-1 or less when light having a wavelength of 300-1500 nm (note that wavelengths absorbed by added elements are excluded) is transmitted, and, in that in the case where dimensions of a smallest rectangular parallelepiped surrounding the YAG sintered body are represented by A mm × B mm × C mm, max(A, B, C) is not more than 150 mm and min(A, B, C) is more than 20 mm but not more than 40 mm. This polycrystalline YAG sintered body is characterized by having a light loss coefficient of 0.002 cm-1 or less when light having a wavelength of 300-1500 nm (note that wavelengths absorbed by added elements are excluded) is transmitted, and, in that in the case where dimensions of a smallest rectangular parallelepiped surrounding the YAG sintered body are represented by A mm × B mm × C mm, max(A, B, C) is more than 150 mm but not more than 300 mm, and min(A, B, C) is more than 5 mm but not more than 40 mm. One embodiment of the present invention addresses the problem of providing a large-size, transparent polycrystalline YAG sintered body, and a production method for the polycrystalline YAG sintered body.

Inventors:
MIKAMI Makoto (187-4 Usuba, Hanakawa-cho, Kitaibaraki-sh, Ibaraki 35, 〒3191535, JP)
YAMAZAKI Yoshiki (187-4 Usuba, Hanakawa-cho, Kitaibaraki-sh, Ibaraki 35, 〒3191535, JP)
Application Number:
JP2018/040023
Publication Date:
October 03, 2019
Filing Date:
October 29, 2018
Export Citation:
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Assignee:
JX NIPPON MINING & METALS CORPORATION (1-2 Otemachi 1-chome, Chiyoda-ku Tokyo, 64, 〒1008164, JP)
International Classes:
C04B35/44; C04B35/505; C09K11/08; C09K11/80
Domestic Patent References:
WO2004067474A12004-08-12
Foreign References:
JP2013209245A2013-10-10
JP2006315878A2006-11-24
JP2005035154A2005-02-10
JP4237707B22009-03-11
JPS5019380B11975-07-07
Attorney, Agent or Firm:
OGOSHI Kazuteru et al. (OGOSHI International Patent Office, Katayama Bldg. 6F 23-10, Shimbashi 5-chome, Minato-k, Tokyo 04, 〒1050004, JP)
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