| 申请日期 | 2025-06-25 | 申请号 | JP2016109405 |
| 公开（公告）号 | JP2019131410A | 公开（公告）日 | 2019-08-08 |
| 公开国别 | JP | 申请人省市代码 | 全国 |
| 申请人 | DENKA CO LTD | ||
| 简介 | PROBLEM TO BE SOLVED : To provide a boron nitride sintered body having excellent corrosion resistance to molten metal containing rare earths. SOLUTION : In the boron nitride sintered body, the boron nitride content is 80.0 mass% or more. The boron nitride sintered body contains 0.3 mass% or more and 12.0 mass% or less of calcium in terms of calcium oxide, and 1.0 mass% or more and 18.0 mass% or less of yttrium in terms of yttrium oxide. SELECTED DRAWING : None COPYRIGHT : (C)2019, JPO&INPIT | ||
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