Back to results
US 2013/0256599 A1Published application
Ceramics composite
AssigneeCovalent Materials Corporation
InventorMasaki IRIE
Life of this patent
Estimating the term…
Abstract
The present invention relates to a ceramics composite including: a matrix phase including Al2O3 or a substance in which one selected from Sc2O3 and Ga2O3 is incorporated into Al2O3; a main phosphor phase formed in the matrix phase and including a substance represented by a general formula A3B5O12:Ce in which A is at least one selected from Y, Gd, Tb, Yb and Lu and B is at least one selected from Al, Ga and Sc; and a CeAl11O18 phase mixed in the matrix phase and the main phosphor phase.
Claims3
A ceramics composite comprising:
- a matrix phase comprising Al2O3 or a substance in which one selected from Sc2O3 and Ga2O3 is incorporated into Al2O3;
- a main phosphor phase formed in the matrix phase and comprising a substance represented by a general formula A3B5O12:Ce in which A is at least one selected from Y, Gd, Tb, Yb and Lu and B is at least one selected from Al, Ga and Sc;
- and
- a CeAl11O18 phase mixed in the matrix phase and the main phosphor phase.
1 more element
A ceramics composite comprising:
- a matrix phase comprising Al2O3 or a substance in which one selected from Sc2O3 and Ga2O3 is incorporated into Al2O3;
- a main phosphor phase formed in the matrix phase and comprising a substance represented by a general formula A3B5O12:Ce in which A is at least one selected from Y, Gd, Tb, Yb and Lu and B is at least one selected from Al, Ga and Sc;
- and
- a CeAl11O18 phase which is mixed only in the main phosphor phase and is present in higher density with a prescribed thickness at an outer peripheral part than at an inner part of the main phosphor phase and which is contained in an amount of 0.5 to 5.0% by volume in a total volume of the ceramics composite.
1 more element
Dependencies are inferred from the claim text.