发明授权
US07597838B2 Functionally gradient SiC/SiC ceramic matrix composites with tailored properties for turbine engine applications
有权
功能梯度SiC / SiC陶瓷基体复合材料,适用于涡轮发动机应用
- 专利标题: Functionally gradient SiC/SiC ceramic matrix composites with tailored properties for turbine engine applications
- 专利标题(中): 功能梯度SiC / SiC陶瓷基体复合材料,适用于涡轮发动机应用
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申请号: US11027403申请日: 2004-12-30
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公开(公告)号: US07597838B2公开(公告)日: 2009-10-06
- 发明人: Suresh Subramanian , James Dale Steibel , Douglas Melton Carper , Toby George Darkins, Jr.
- 申请人: Suresh Subramanian , James Dale Steibel , Douglas Melton Carper , Toby George Darkins, Jr.
- 申请人地址: US NY Schenectady
- 专利权人: General Electric Company
- 当前专利权人: General Electric Company
- 当前专利权人地址: US NY Schenectady
- 代理机构: McNees Wallace & Nurick, LLC
- 主分类号: B32B17/12
- IPC分类号: B32B17/12 ; B32B15/04 ; C04B35/00 ; C04B33/34 ; C04B35/64
摘要:
A ceramic matrix composite with a ceramic matrix and a gradient layering of coating on ceramic fibers. The coating typically improves the performance of the composite in one direction while degrading it in another direction. For a SiC-SiC ceramic matrix composite, a BN coating is layered in a gradient fashion or in a step-wise fashion in different regions of the article comprising the ceramic. The BN coating thickness is applied over the ceramic fibers to produce varying desired physical properties by varying the coating thickness within differing regions of the composite, thereby tailoring the strength of the composite in the different regions. The coating may be applied as a single layer as a multi-layer coating to enhance the performance of the coating as the ceramic matrix is formed or infiltrated from precursor materials into a preform of the ceramic fibers.
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