| 申请日期 | 2025-07-13 | 申请号 | US10525162 |
| 公开（公告）号 | US20050215419A1 | 公开（公告）日 | 2005-09-29 |
| 公开国别 | US | 申请人省市代码 | 全国 |
| 申请人 | TAKAGIMI YANAGITANI; HIDEKI YAGI | ||
| 简介 | A rare earth garnet sintered compact which is produced by subjecting a rare earth garnet powder such as YAG to a pre-sintering, sintering the pre-sintered product by HIP, and annealing the sintered product at 1100° C. to 1600° C. in a whole oxygen atmosphere under a whole pressure of 4.5 MPa or more, and has an average crystallite diameter of 0.9 to 9 μm, an optical loss coefficient of 0.002 cm−1 or less and a strain of a transmitted wave of 0.05 λ cm−1 or less. | ||
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