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Title:
CERAMIC COMPOSITE
Document Type and Number:
Japanese Patent JP2011012215
Kind Code:
A
Abstract:

To provide a ceramic composite which is excellent in emission intensity even in a simple constitution and is a luminous body of which a specific physical property is relatively easily controlled.

The ceramic composite has: a phosphor phase constituted of YAG containing Ce; a matrix phase constituted of at least one of Al2O3 and AlN; and one or a plurality of impurities except elements constituting the phosphor phase and the matrix phase, characterized in that the phosphor phase constitutes 20 vol% or more but 52 vol% or less of the ceramic composite; a content of the Ce is 0.005 or more but 0.08 or less at an atom ratio to Y in YAG; and its vertical thickness is 30 μm or more but 200 μm or less with respect to a principal surface of the ceramic composite.


Inventors:
IRIE MASAKI
FUJITA MITSUHIRO
Application Number:
JP2009159239A
Publication Date:
January 20, 2011
Filing Date:
July 03, 2009
Export Citation:
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Assignee:
COVALENT MAT CORP
International Classes:
C09K11/80; C09K11/00; H01L33/50
Domestic Patent References:
JP2004161871A2004-06-10
JP2006169422A2006-06-29
JP2004146835A2004-05-20
JP2011513898A2011-04-28
JP2008533270A2008-08-21
JP2006049410A2006-02-16
Foreign References:
WO2004065324A12004-08-05
WO2006064930A12006-06-22
WO2006001316A12006-01-05
WO2006043719A12006-04-27
Attorney, Agent or Firm:
Mitsuyuki Matsuyama
Tetsuma Ikegami
Akira Sudo