发明名称 |
Leichter keramischer Schallabsorber und Verfahren zu seiner Herstellung |
摘要 |
<p>There is provided a light-weight ceramic acoustic absorber including an alumina based ceramic containing SiC whiskers, as a perforated body with a void ratio in the range of 80 to 92%, where there are voids with a mean diameter in the range of 50 to 450 mu m near the front surface of the body, and the void diameters are larger towards the rear surface of the body, and a mean diameter of the voids is in the range of 500 to 3,400 mu m near the rear surface of the body, and there is an increasing trend in void diameters from the front to the rear surfaces. The light-weight ceramic acoustic absorber provides various advantages such as light weight, high resistance to thermal stresses, high acoustic absorptivity, and high resistance to the gas jet from a jet engine. <IMAGE></p> |
申请公布号 |
DE69736104(T2) |
申请公布日期 |
2006.10.19 |
申请号 |
DE1997636104T |
申请日期 |
1997.11.07 |
申请人 |
ISHIKAWAJIMA-HARIMA HEAVY INDUSTRIES CO. LTD. |
发明人 |
OISHI, TSUTOMU;NAKAMURA, YOSHIYA;ISHIZUKA, HIROYA;SASAKI, TAKEO |
分类号 |
G10K11/162;C04B38/10;G10K11/165 |
主分类号 |
G10K11/162 |
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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