发明名称 |
BORON NITRIDE CERAMIC HAVING EXCELLENT RESISTANCE AGAINST FUSING DAMAGE. |
摘要 |
<p>An h-BN type ceramic having good resistence to melt damage caused by melts is claimed obtd.by incorporating at least 50% h-BN and 1 to less than 50% composite cpd (I) composed of at least 2 cpds. from AlN; Si3N4; Al2O3 and SiO2 in a sinter. Further incorporation of at least one cpd. from AlN; So3N4, Al2O3 and SiO2 in amt. less than 30% in addition to (I) markedly improves the welting resistance and the thermal shock resistance as well as the resistance against fusing damages. (I) pref. comprises cpds. of formula Al6 Si2 O13; Si3Al3O3N5; Al303N or Si6Al10021 N4.</p> |
申请公布号 |
EP0396779(A1) |
申请公布日期 |
1990.11.14 |
申请号 |
EP19890912500 |
申请日期 |
1989.11.10 |
申请人 |
KABUSHIKI KAISHA KOURANSHA |
发明人 |
NAKASHIMA, MASAZUMI KABUSHIKI KAISHA KOURANSHA;KURITA, SUMIHIKO |
分类号 |
C04B35/583 |
主分类号 |
C04B35/583 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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