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1. 发明授权

US5275984A Fiber coating of unbonded multi-layers for toughening ceramic fiber-matrix composites 失效
标题翻译：用于增韧陶瓷纤维基复合材料的未粘合多层的纤维涂层
公开(公告)号：US5275984A
公开(公告)日：1994-01-04
申请号：US669137
申请日：1991-03-13
申请人： Harry W. Carpenter , James W. Bohlen
发明人： Harry W. Carpenter , James W. Bohlen
IPC分类号： C04B35/80 , C04B41/45 , C04B41/52 , C04B41/81 , C04B41/89 , B32B18/00 , C04B35/71
CPC分类号： C04B41/009 , C04B35/80 , C04B41/4584 , C04B41/52 , C04B41/81 , C04B41/89 , Y10S428/902 , Y10T428/2918 , Y10T428/292 , Y10T428/2938 , Y10T428/2942 , Y10T428/2949
摘要： A composite comprising a ceramic matrix having immersed ceramic reinforcing fibers is strengthened and toughened by providing a multi-layer ceramic coating surrounding each fiber. The multiple layers in the fiber coating are not bonded to one another. As a result, the multiple layers separate from one another in the presence of an advancing crack in the ceramic matrix, thereby permitting the fibers to pull out of the matrix and avoid premature fiber breakage. The choice of materials for the fiber coating is not limited by any requirement to establish a particular type of chemical bond between the coating and the fiber. Instead, the invention relies only upon the mechanical tendency of the unbonded multiple layers in the fiber coating to separate to promote fiber pull-out from the matrix in the wake of an advancing crack.
摘要翻译：包含具有浸没的陶瓷增强纤维的陶瓷基体的复合材料通过提供围绕每个纤维的多层陶瓷涂层来增强和增韧。纤维涂层中的多个层不彼此结合。结果，在陶瓷基体中存在前进的裂纹的情况下，多层彼此分离，从而允许纤维从基质中拉出并避免纤维过早破裂。用于纤维涂层的材料的选择不受在涂层和纤维之间建立特定类型的化学键的任何要求的限制。相反，本发明仅依赖于纤维涂层中未粘合的多层的机械趋势来分离，以促进在前进裂纹之后从基质中拉出纤维。

2. 发明授权

US5221578A Weak frangible fiber coating with unfilled pores for toughening ceramic fiber-matrix composites 失效
标题翻译：具有无缝纤维的弱可弯曲纤维涂层，用于加工陶瓷纤维基复合材料
公开(公告)号：US5221578A
公开(公告)日：1993-06-22
申请号：US669138
申请日：1991-03-13
申请人： Harry W. Carpenter , James W. Bohlen , Wayne S. Steffier
发明人： Harry W. Carpenter , James W. Bohlen , Wayne S. Steffier
IPC分类号： C04B35/80 , C04B41/45 , C04B41/87
CPC分类号： C04B41/009 , C04B35/80 , C04B41/4584 , C04B2111/00405 , Y10T428/2918 , Y10T428/292 , Y10T428/2933 , Y10T428/2938 , Y10T428/2942 , Y10T428/2949
摘要： A ceramic fiber/ceramic matrix composite has ceramic fibers and a porous coating on the fibers. A ceramic matrix contacts the porous coating, the fiber and coating being immersed in the ceramic matrix. The porous coating is selected from the group including Si.sub.3 N.sub.4, SiC, ZrO.sub.2, Al.sub.2 O.sub.3, SnO.sub.2 and Ta.sub.2 O.sub.5. The pores are generally empty so as to render the coating frangible to promote fiber de-bonding and pull-out in the wake of an advancing crack in the matrix. In order to keep the pores empty, a non-porous sealing layer is formed over the porous coating which closes the pores without filling them. The ceramic matrix remains generally outside of the pores, whereby said pores remain empty after the fiber and coating are immersed in the ceramic matrix.
摘要翻译：陶瓷纤维/陶瓷基复合材料在纤维上具有陶瓷纤维和多孔涂层。陶瓷基体与多孔涂层接触，将纤维和涂层浸入陶瓷基体中。多孔涂层选自包括Si 3 N 4，SiC，ZrO 2，Al 2 O 3，SnO 2和Ta 2 O 5的组。毛孔通常是空的，以便使涂层易于在基体中前进的裂纹之后促进纤维脱粘和拉出。为了保持孔隙空洞，在多孔涂层上形成无孔密封层，其封闭孔而不填充它们。陶瓷基体通常保留在孔的外部，由此在将纤维和涂层浸入陶瓷基质中之后，所述孔保持空。

3. 发明授权

US5162271A Method of forming a ductile fiber coating for toughening non-oxide ceramic matrix composites 失效
标题翻译：形成用于增强非氧化物陶瓷基复合材料的纤维涂层的方法
公开(公告)号：US5162271A
公开(公告)日：1992-11-10
申请号：US669133
申请日：1991-03-13
申请人： Harry W. Carpenter , James W. Bohlen , Wayne S. Steffier
发明人： Harry W. Carpenter , James W. Bohlen , Wayne S. Steffier
IPC分类号： C04B35/80 , C04B41/45 , C04B41/52 , C04B41/81 , C04B41/88 , C04B41/89
CPC分类号： C04B41/009 , C04B35/80 , C04B41/4584 , C04B41/52 , C04B41/81 , C04B41/89 , Y10T428/2949 , Y10T428/2958
摘要： A method of toughening a fiber/matrix ceramic composite consisting of non-oxide based ceramic fibers immersed in a ceramic matrix. The method includes, prior to immersing the fibers in the matrix, applying a metallo-organic solution of a noble metal to the fibers to form a coating of the solution on the fibers, evaporating the solvent from the solution and oxidizing the residual organic compounds whereby the coating becomes a pure noble metal and immersing the coated fibers in the matrix. The applying, evaporating, oxidizing and immersing steps are characterized by a limited raising of the temperature of the fibers. The coating is ductile so as to blunt advancing cracks in the matrix.
摘要翻译：一种增强由浸在陶瓷基体中的非氧化物基陶瓷纤维组成的纤维/基质陶瓷复合材料的方法。该方法包括在将纤维浸入基质之前，将金属有机金属溶液施加到纤维上以在纤维上形成溶液的涂层，从溶液中蒸发溶剂并氧化残余的有机化合物，由此涂层变成纯贵金属，并将涂覆的纤维浸入基质中。施加，蒸发，氧化和浸渍步骤的特征在于有限的纤维温度升高。涂层是延展性的，从而使矩阵中的前进裂纹钝化。

4. 发明授权

US5110771A Method of forming a precracked fiber coating for toughening ceramic fiber-matrix composites 失效
标题翻译：形成用于增韧陶瓷纤维基质复合材料的预先包覆的纤维涂层的方法
公开(公告)号：US5110771A
公开(公告)日：1992-05-05
申请号：US669132
申请日：1991-03-13
申请人： Harry W. Carpenter , James W. Bohlen
发明人： Harry W. Carpenter , James W. Bohlen
IPC分类号： C04B35/80 , C04B41/45 , C04B41/52 , C04B41/89
CPC分类号： C04B41/009 , C04B35/80 , C04B41/4584 , C04B41/52 , C04B2111/00405 , Y10T428/2916 , Y10T428/2924 , Y10T428/2938
摘要： A method of producing a ceramic fiber/ceramic matrix composite having a precracked fiber coating includes depositing a metal coating or a metal nitride or metal carbide coating on each ceramic fiber in a preform of fibers, infiltrating the fiber preform with a ceramic matrix to form a ceramic fiber/ceramic matrix composite, after the formation of the composite is complete, oxidizing the coating so as to change the coating to an oxide thereof. This process forms microcracks throughout the oxidized coating because of the mismatch in characteristics between the precursor layer and the final oxidized layer. An alternative method of producing a ceramic fiber/ceramic matrix composite having a precracked fiber coating includes depositing an oxidation resistant oxide, carbide or nitride which undergoes a destructive phase transformation after the coating and matrix infiltration processes are complete by the use of thermal cycling. This process forms microcracks throughout or around the coating because of the volume change associated with the phase transformation.
摘要翻译：一种制备具有预先包覆的纤维涂层的陶瓷纤维/陶瓷基复合材料的方法包括在纤维预成型件中的每个陶瓷纤维上沉积金属涂层或金属氮化物或金属碳化物涂层，用陶瓷基体浸渍纤维预制件以形成陶瓷纤维/陶瓷基复合材料，复合材料形成后，氧化涂层，使涂层变为氧化物。由于前体层和最终氧化层之间的特性不匹配，该过程在整个氧化的涂层中形成微裂纹。制备具有预先缠绕的纤维涂层的陶瓷纤维/陶瓷基复合材料的替代方法包括沉积在涂层之后进行破坏性相变的耐氧化氧化物，碳化物或氮化物，并且通过使用热循环完成基体渗透过程。由于与相变相关联的体积变化，该过程在涂层周围或周围形成微裂纹。

5. 发明授权

US06544589B2 Method of controlling drying stresses by restricting shrinkage of ceramic coating 有权
标题翻译：通过限制陶瓷涂层的收缩来控制干燥应力的方法
公开(公告)号：US06544589B2
公开(公告)日：2003-04-08
申请号：US09933359
申请日：2001-08-20
申请人： John Willis , Thomas A. Seitz , Steven J. Null , James W. Bohlen , Michael L. Peters , Blake T. Tatsuta
发明人： John Willis , Thomas A. Seitz , Steven J. Null , James W. Bohlen , Michael L. Peters , Blake T. Tatsuta
IPC分类号： B05D310
CPC分类号： C23C26/00 , C23C18/1208 , C23C18/1295 , C23C24/08 , C23C28/00
摘要： A method of controlling drying stresses through controlled shrinkage of a ceramic coating coated onto a substrate. The method first includes applying a non-cured ceramic coating onto the substrate and permitting the coating to dry until a mechanically stable outer surface layer of the coating is formed. Once this layer is formed, a drying control is applied in a quantity sufficient to penetrate into the surface layer, with the result of such application being the inhibition of formation of a dry outer skin as continued drying is permitted to occur. Once such drying is complete, the outer surface layer is subjected to an elevated temperature for curing and for evaporating therefrom the drying control agent to thereby produce a cured-ceramic coated substrate whose coating is void of large cracks and whose durability is beneficially opportune.
摘要翻译：通过涂覆在基材上的陶瓷涂层的受控收缩来控制干燥应力的方法。该方法首先包括将未固化的陶瓷涂层施加到基底上并允许涂层干燥直到形成涂层的机械稳定的外表面层。一旦形成了该层，则以足以渗透到表面层中的量施加干燥控制，其结果是允许持续干燥发生时干燥外皮的形成的抑制。一旦这样的干燥完成，外表面层经受高温固化并从中蒸发干燥控制剂，从而产生其涂层没有大裂纹并且耐久性有利的固化陶瓷涂布基材。

6. 发明授权

US4808248A Process for thermal aging of aluminum alloy plate 失效
标题翻译：铝合金板热老化工艺
公开(公告)号：US4808248A
公开(公告)日：1989-02-28
申请号：US917630
申请日：1986-10-10
申请人： Malcolm W. Ozelton , James W. Bohlen , Gregory V. Scarich , James J. Scuttl , Stephan W. Averill
发明人： Malcolm W. Ozelton , James W. Bohlen , Gregory V. Scarich , James J. Scuttl , Stephan W. Averill
IPC分类号： C22F1/04 , C22C21/06
CPC分类号： C22F1/04
摘要： A method is disclosed for preparing an improved aluminum alloy plate product wherein the plate produced from an Al-Li-Cu-Mg alloy in the T351 condition is subjected to a thermal aging treatment wherein the plate is exposed to a temperature of about 170.degree. C..+-.2.degree. C. for about 32 hours .+-.0.5 hours.
摘要翻译：公开了一种用于制备改进的铝合金板产品的方法，其中在T351条件下由Al-Li-Cu-Mg合金制成的板进行热时效处理，其中板暴露于约170℃的温度 + / - 2℃约32小时+/- 0.5小时。

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