发明名称 |
Hybrid Sandwich Ceramic Matrix Composite |
摘要 |
A hybrid sandwich ceramic matrix composite (CMC) may comprise a first facesheet, a second facesheet, and a core between and bonded to both of the first facesheet and the second facesheet. The first facesheet and the second facesheet may each include filaments in a ceramic matrix. The hybrid sandwich CMC may be configured for exposure to a thermal gradient in which the first facesheet is exposed to a higher temperature environment than the second facesheet. The first facesheet and the second facesheet may have at least closely matching coefficients of thermal expansion, and the first facesheet may have a higher compressive strength than the second facesheet. |
申请公布号 |
US2016264476(A1) |
申请公布日期 |
2016.09.15 |
申请号 |
US201514593682 |
申请日期 |
2015.01.09 |
申请人 |
The Boeing Company |
发明人 |
Keith William P. |
分类号 |
C04B35/76;C04B37/00;B32B5/02;B32B1/08;B32B18/00 |
主分类号 |
C04B35/76 |
代理机构 |
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代理人 |
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主权项 |
1. A diatomaceous earth product comprising:
natural diatomaceous earth; potassium silicate; and no more than about 4 wt % of crystalline silica after the natural diatomaceous earth and potassium silicate are combined to form a mixture and the mixture is calcined at a temperature between about 927° C. and about 1149° C., wherein the diatomaceous earth product has a permeability in the range of about 0.3 darcy to greater than about 20 darcy. |
地址 |
Chicago IL US |