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公开(公告)号：US5296311A
公开(公告)日：1994-03-22
申请号：US852589
申请日：1992-03-17
IPC分类号： C04B35/573 , C04B35/628 , C04B35/80 , B32B18/00
CPC分类号： C04B35/62865 , C04B35/573 , C04B35/624 , C04B35/6263 , C04B35/62857 , C04B35/62868 , C04B35/62884 , C04B35/62897 , C04B35/6316 , C04B35/806 , C04B2235/3217 , C04B2235/3427 , C04B2235/3826 , C04B2235/46 , C04B2235/5244 , C04B2235/616 , C04B2235/96 , Y10T428/2918 , Y10T428/2938 , Y10T428/2956 , Y10T428/2958
摘要： The invention provides silicon carbide fiber-reinforced, reaction-bonded silicon carbide composites suitable for high temperature applications in which the silicon carbide fiber is coated with AlN, BN or TiB.sub.2. The composites offer superior fracture toughness which is ascribed to fiber pullout. The invention also includes a process for making the composites.
摘要翻译： 本发明提供碳化硅纤维增强的反应粘合碳化硅复合材料，其适用于碳化硅纤维被AlN，BN或TiB2涂覆的高温应用。 复合材料提供优异的断裂韧性，这归因于纤维拔出。 本发明还包括制备复合材料的方法。
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公开(公告)号：US5945062A
公开(公告)日：1999-08-31
申请号：US24343
申请日：1998-02-17
IPC分类号： C04B35/573 , C04B35/628 , C04B35/80 , B28B1/00
CPC分类号： C04B35/62865 , C04B35/573 , C04B35/624 , C04B35/6263 , C04B35/62857 , C04B35/62868 , C04B35/62884 , C04B35/62897 , C04B35/6316 , C04B35/806 , C04B2235/3217 , C04B2235/3427 , C04B2235/3826 , C04B2235/46 , C04B2235/5244 , C04B2235/616 , C04B2235/96 , Y10T428/2918 , Y10T428/2938 , Y10T428/2956 , Y10T428/2958
摘要： The invention includes a process for producing a reaction bonded silicon carbide composite reinforced with coated silicon carbide fibers which is suitable for high temperature applications. The process includes the steps of coating SiC fibers with AlN, BN or TiB.sub.2 ; treating the coated fibers with a mixture of SiC powder, water and a surfactant; preparing a slurry comprising SiC powder and water; infiltrating the coated fibers with the slurry to form a cast; drying the cast to form a green body; and reaction bonding the green body to form a dense SiC fiber reinforced reaction bonded matrix composite.The invention further includes a SiC fiber reinforced SiC composite comprising a reaction bonded SiC matrix, a SiC fiber reinforcement possessing thermal stability at high temperatures and an interface coating on the fibers having chemical and mechanical compatibility with the SiC matrix and with the SiC fibers.
摘要翻译： 本发明包括一种用于生产适用于高温应用的涂覆碳化硅纤维增强的反应粘合碳化硅复合材料的方法。 该方法包括用AlN，BN或TiB2涂覆SiC纤维的步骤; 用SiC粉末，水和表面活性剂的混合物处理涂覆的纤维; 制备包含SiC粉末和水的浆料; 用浆料渗透涂覆的纤维以形成铸件; 干燥铸造形成一个绿色的身体; 并与生坯反应结合形成致密的SiC纤维增强反应键合基复合材料。 本发明还包括一种SiC纤维增强SiC复合材料，其包括反应结合的SiC基体，在高温下具有热稳定性的SiC纤维增强层和在与SiC基体和SiC纤维具有化学和机械相容性的纤维上的界面涂层。
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公开(公告)号：US5643514A
公开(公告)日：1997-07-01
申请号：US447148
申请日：1995-05-22
IPC分类号： C04B35/573 , C04B35/628 , C04B35/80 , C04B35/577
CPC分类号： C04B35/62865 , C04B35/573 , C04B35/624 , C04B35/6263 , C04B35/62857 , C04B35/62868 , C04B35/62884 , C04B35/62897 , C04B35/6316 , C04B35/806 , C04B2235/3217 , C04B2235/3427 , C04B2235/3826 , C04B2235/46 , C04B2235/5244 , C04B2235/616 , C04B2235/96 , Y10T428/2918 , Y10T428/2938 , Y10T428/2956 , Y10T428/2958
摘要： The invention includes a process for producing a reaction bonded silicon carbide composite reinforced with coated silicon carbide fibers which is suitable for high temperature applications. The process includes the steps of coating SiC fibers with AlN, BN or TiB.sub.2 ; treating the coated fibers with a mixture of SiC powder, water and a surfactant; preparing a slurry comprising SiC powder and water; infiltrating the coated fibers with the slurry to form a cast; drying the cast to form a green body; and reaction bonding the green body to form a dense SiC fiber reinforced reaction bonded matrix composite.The invention further includes a SiC fiber reinforced SiC composite comprising a reaction bonded SiC matrix, a SiC fiber reinforcement possessing thermal stability at high temperatures and an interface coating on the fibers having chemical and mechanical compatibility with the SiC matrix and with the SiC fibers.
摘要翻译： 本发明包括一种用于生产适用于高温应用的涂覆碳化硅纤维增强的反应粘合碳化硅复合材料的方法。 该方法包括用AlN，BN或TiB2涂覆SiC纤维的步骤; 用SiC粉末，水和表面活性剂的混合物处理涂覆的纤维; 制备包含SiC粉末和水的浆料; 用浆料渗透涂覆的纤维以形成铸件; 干燥铸造形成一个绿色的身体; 并与生坯反应结合形成致密的SiC纤维增强反应键合基复合材料。 本发明还包括一种SiC纤维增强SiC复合材料，其包括反应结合的SiC基体，在高温下具有热稳定性的SiC纤维增强层和在与SiC基体和SiC纤维具有化学和机械相容性的纤维上的界面涂层。
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公开(公告)号：US5817432A
公开(公告)日：1998-10-06
申请号：US698740
申请日：1996-08-16
IPC分类号： C04B35/573 , C04B35/628 , C04B35/80 , B32B17/00
CPC分类号： C04B35/62865 , C04B35/573 , C04B35/624 , C04B35/6263 , C04B35/62857 , C04B35/62868 , C04B35/62884 , C04B35/62897 , C04B35/6316 , C04B35/806 , C04B2235/3217 , C04B2235/3427 , C04B2235/3826 , C04B2235/46 , C04B2235/5244 , C04B2235/616 , C04B2235/96 , Y10T428/2918 , Y10T428/2938 , Y10T428/2956 , Y10T428/2958
摘要： The invention includes a process for producing a reaction bonded silicon carbide composite reinforced with coated silicon carbide fibers which is suitable for high temperature applications. The process includes the steps of coating SiC fibers with AlN, BN or TiB.sub.2 ; treating the coated fibers with a mixture of SiC powder, water and a surfactant; preparing a slurry comprising SiC powder and water; infiltrating the coated fibers with the slurry to form a cast; drying the cast to form a green body; and reaction bonding the green body to form a dense SiC fiber reinforced reaction bonded matrix composite. The invention further includes a SiC fiber reinforced SiC composite comprising a reaction bonded SiC matrix, a SiC fiber reinforcement possessing thermal stability at high temperatures and an interface coating on the fibers having chemical and mechanical compatibility with the SiC matrix and with the SiC fibers.
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公开(公告)号：US20090272122A1
公开(公告)日：2009-11-05
申请号：US11502079
申请日：2006-08-10
CPC分类号： F01D11/18 , F01D11/24 , F01D25/12 , F01D25/14 , F05D2300/21
摘要： A shroud suitable for use in a gas turbine engine exhibits substantially uniform thermal growth.
摘要翻译： 适合用于燃气涡轮发动机的护罩表现出基本均匀的热生长。
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公开(公告)号：US08328505B2
公开(公告)日：2012-12-11
申请号：US13308269
申请日：2011-11-30
IPC分类号： F01D11/18
CPC分类号： F01D11/18 , F01D11/24 , F01D25/12 , F01D25/14 , F05D2300/21
摘要： A shroud suitable for use in combination with an adjacent rotor blade includes a leading portion comprising a first thickness, and a trailing portion adjacent to the leading portion and comprising a second thickness, wherein the second thickness is less than the first thickness so that stiffness in the leading portion is greater than in the trailing portion and radial expansion by thermal growth of the leading portion of the shroud is constrained.
摘要翻译： 适于与相邻转子叶片组合使用的护罩包括包括第一厚度的引导部分和与引导部分相邻的后部，并且包括第二厚度，其中第二厚度小于第一厚度，使得刚度在 引导部分大于尾部部分，并且限制了护罩的引导部分的热生长的径向膨胀。
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公开(公告)号：US20120070276A1
公开(公告)日：2012-03-22
申请号：US13308269
申请日：2011-11-30
CPC分类号： F01D11/18 , F01D11/24 , F01D25/12 , F01D25/14 , F05D2300/21
摘要： A shroud suitable for use in combination with an adjacent rotor blade includes a leading portion comprising a first thickness, and a trailing portion adjacent to the leading portion and comprising a second thickness, wherein the second thickness is less than the first thickness so that stiffness in the leading portion is greater than in the trailing portion and radial expansion by thermal growth of the leading portion of the shroud is constrained.
摘要翻译： 适于与相邻转子叶片组合使用的护罩包括包括第一厚度的引导部分和与引导部分相邻的后部，并且包括第二厚度，其中第二厚度小于第一厚度，使得刚度在 引导部分大于尾部部分，并且限制了护罩的引导部分的热生长的径向膨胀。
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