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12. 发明授权

US06251815B1 Thermal gradient resistant ceramic composite 失效
标题翻译：耐热梯度陶瓷复合材料
公开(公告)号：US06251815B1
公开(公告)日：2001-06-26
申请号：US09483924
申请日：2000-01-18
申请人： Triplicane A. Parthasarathy , Ronald J. Kerans
发明人： Triplicane A. Parthasarathy , Ronald J. Kerans
IPC分类号： C04B3580
CPC分类号： C04B35/111 , C04B35/803 , Y10T428/249928 , Y10T428/2913
摘要： A thermal gradient resistant fiber-reinforced composite structure which has a hot operating side and an opposite cool operating side and a thickness &tgr; therebetween. In one embodiment, the composite has two regions: hot and cool. The hot region consists essentially of a fiber having a first coefficient of thermal expansion and a matrix material and the cool region consists essentially of a fiber having a second coefficient of thermal expansion and a matrix material. In this embodiment, the hot region has a thickness &tgr;H of about 10 to 90 percent of the total thickness &tgr; between the hot side and the cool side, and the cool region has a thickness &tgr;C of about 90 to 10 percent of the total thickness &tgr;. In a second embodiment, the composite has a hot operating side and an opposite cool operating side and a thickness &tgr;′ therebetween. In this embodiment, the composite has three regions: hot, intermediate and cool. The hot region consists essentially of a fiber having a first coefficient of thermal expansion and a matrix material and has a thickness &tgr;H′ of about 10 to 45 percent of the total thickness &tgr;′ between the hot side and the cool side, the cool region consists essentially of a fiber having a second coefficient of thermal expansion and a matrix material and has a thickness &tgr;C′ of about 45 to 10 percent of the total thickness &tgr;′, and the intermediate region consists essentially of a fiber having a third coefficient of thermal expansion and a matrix material and has a thickness &tgr;1 of about 10 to 50 percent of the total thickness &tgr;′ between the hot side and the cool side. The intermediate region can also consist of a mixture of the two fibers used in the outer regions.
摘要翻译：具有热操作侧和相反的冷操作侧和厚度的热梯度抗性纤维增强复合结构之间。在一个实施方案中，复合物具有两个区域：热和冷。热区基本上由具有第一热膨胀系数的纤维和基质材料组成，而冷区基本上由具有第二热膨胀系数的纤维和基质材料组成。在该实施例中，热区域具有总厚度的约10至90％的厚度，在热侧和冷侧之间，冷区的厚度为总厚度的约90％至10％。在第二实施例中，复合材料具有热操作侧和相反的冷操作侧和厚度“ 之间。在该实施例中，复合材料具有三个区域：热，中间和冷却。热区基本上由具有第一热膨胀系数的纤维和基体材料组成，并且具有总厚度的约10％至45％的厚度“H” 在热侧和冷侧之间，冷区基本上由具有第二热膨胀系数的纤维和基质材料组成，并且具有总厚度的约45％至10％的厚度C' 并且中间区域基本上由具有第三热膨胀系数的纤维和基质材料组成，并且具有总厚度的约10％至50％的厚度“ 在热边和凉爽的一面之间。中间区域也可以由外部区域中使用的两种纤维的混合物组成。

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