| 发明名称 |
ALUMINA CERAMIC |
| 摘要 |
<p>The invention provides an alumina ceramic containing a Ba 0.808 Al 1.71 Si 2.29 O 8 phase. The alumina ceramic has high reflectivity and is useful as a reflecting material for a light emitting element. The alumina ceramic which exhibits an X-ray diffraction pattern having a ratio of the peak intensity at 29=43.3° to that at 22.5° of 0.5 to 2.5 has particularly high reflectivity. The alumina ceramic of the invention shows high reflectivity particularly at wavelengths ranging from 300 to 400 nm.</p> |
| 申请公布号 |
KR20110033979(A) |
申请公布日期 |
2011.04.04 |
| 申请号 |
KR20107024235 |
申请日期 |
2009.06.22 |
| 申请人 |
NIPPON CARBIDE INDUSTRIES CO., INC. |
发明人 |
IDA MAKOTO;ISHIDA FUMIO;TERAISHI YOSHIAKI;YAMASHITA TAKUYA |
| 分类号 |
C04B35/111;C04B35/14;H01L33/00;H01S5/022 |
主分类号 |
C04B35/111 |
| 代理机构 |
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代理人 |
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| 地址 |
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