公开(公告)号：US06228453B1

公开(公告)日：2001-05-08

申请号：US08958685

申请日：1997-10-27

申请人： Ali Syed Fareed ,  John Edward Garnier ,  Gerhard Hans Schiroky ,  Christopher Robin Kennedy ,  Birol Sonuparlak

发明人： Ali Syed Fareed ,  John Edward Garnier ,  Gerhard Hans Schiroky ,  Christopher Robin Kennedy ,  Birol Sonuparlak

IPC分类号： B32B516

CPC分类号： C04B35/62863 ,  B32B18/00 ,  C04B35/117 ,  C04B35/581 ,  C04B35/62844 ,  C04B35/62852 ,  C04B35/62868 ,  C04B35/62871 ,  C04B35/62884 ,  C04B35/62894 ,  C04B35/62897 ,  C04B35/652 ,  C04B35/653 ,  C04B35/80 ,  C04B35/803 ,  C04B35/806 ,  C04B41/009 ,  C04B41/52 ,  C04B2235/3279 ,  C04B2235/3454 ,  C04B2235/40 ,  C04B2235/401 ,  C04B2235/402 ,  C04B2235/405 ,  C04B2235/407 ,  C04B2235/428 ,  C04B2235/46 ,  C04B2235/5244 ,  C04B2235/5256 ,  C04B2235/526 ,  C04B2235/5264 ,  C04B2235/5268 ,  C04B2235/5436 ,  C04B2235/6028 ,  C04B2235/614 ,  C04B2235/6562 ,  C04B2235/6567 ,  C04B2235/6586 ,  C04B2235/6587 ,  C04B2235/662 ,  C04B2235/96 ,  C04B2237/343 ,  C04B2237/38 ,  C04B2237/586 ,  Y10T428/12035 ,  Y10T428/12056 ,  Y10T428/12458 ,  Y10T428/15 ,  Y10T428/2991 ,  C04B41/4531 ,  C04B41/5064 ,  C04B41/5059 ,  C04B41/5066 ,  C04B41/522 ,  C04B41/5031 ,  C04B14/4693

摘要： The present invention generally relates to mechanisms for preventing undesirable oxidation (i.e., oxidation protection mechanisms) in composite bodies. The oxidation protection mechanisms include getterer materials which are added to the composite body which gather or scavenge undesirable oxidants which may enter the composite body. The getterer materials may be placed into at least a portion of the composite body such that any undesirable oxidant approaching, for example, a fiber reinforcement, would be scavenged by (e.g., reacted with) the getterer. The getterer materials) may form at least one compound which acts as a passivation layer, and/or is able to move by bulk transport (e.g., by viscous flow as a glassy material) to a crack, and sealing the crack, thereby further enhancing the oxidation protection of the composite body. One or more ceramic filler materials which serve as reinforcements may have a plurality of super-imposed coatings thereon, at least one of which coatings may function as or contain an oxidation protection mechanism. Specifically, a coating comprising boron nitride which has been engineered or modified to contain some silicon exhibits improved corrosion resistance, specifically to oxygen and moisture. The coated materials may be useful as reinforcing materials in high performance composites to provide improved mechanical properties such as fracture toughness. The present invention also relates to improved composites which incorporate these materials, and to their methods of manufacture.

摘要翻译： 本发明一般涉及用于防止复合体中不希望的氧化（即氧化保护机制）的机理。 氧化保护机理包括加入到复合体中的吸收剂材料，其收集或清除可能进入复合体的不期望的氧化剂。 吸收剂材料可以被放置在复合体的至少一部分中，使得接近例如纤维增强剂的任何不期望的氧化物将被吸收器（例如与反应物）一起清除。 吸收剂材料）可以形成至少一种作为钝化层的化合物，和/或能够通过散装运输（例如，作为玻璃状材料的粘性流动）移动到裂纹中，并且密封裂纹，由此进一步增强 复合体的氧化保护。 用作增强材料的一种或多种陶瓷填充材料可以在其上具有多个超级涂层，其中至少一种涂层可以起氧化或含有氧化保护机制的作用。 具体地说，包含氮化硼的涂层已被改造或改造成含有一些硅，具有改善的耐腐蚀性，特别是对氧气和水分的影响。 涂覆的材料可用作高性能复合材料中的增强材料，以提供改进的机械性能，例如断裂韧性。 本发明还涉及包含这些材料的改进的复合材料及其制造方法。

公开(公告)号：US5682594A

公开(公告)日：1997-10-28

申请号：US472613

申请日：1995-06-07

申请人： Christopher Robin Kennedy ,  Birol Sonuparlak ,  Ali Syed Fareed ,  John Edward Garnier ,  Gerhard Hans Schiroky ,  Dennis James Landini ,  Virgil Irick, Jr.

发明人： Christopher Robin Kennedy ,  Birol Sonuparlak ,  Ali Syed Fareed ,  John Edward Garnier ,  Gerhard Hans Schiroky ,  Dennis James Landini ,  Virgil Irick, Jr.

IPC分类号： C04B35/628 ,  C04B35/65 ,  C04B35/80 ,  C09K3/14 ,  B22F3/00 ,  C03C13/00

CPC分类号： C04B35/62894 ,  B32B18/00 ,  C04B35/117 ,  C04B35/581 ,  C04B35/62844 ,  C04B35/62852 ,  C04B35/62855 ,  C04B35/62863 ,  C04B35/62865 ,  C04B35/62868 ,  C04B35/62871 ,  C04B35/62873 ,  C04B35/62884 ,  C04B35/62897 ,  C04B35/652 ,  C04B35/80 ,  C04B2235/3279 ,  C04B2235/40 ,  C04B2235/401 ,  C04B2235/402 ,  C04B2235/404 ,  C04B2235/405 ,  C04B2235/407 ,  C04B2235/428 ,  C04B2235/524 ,  C04B2235/5244 ,  C04B2235/5248 ,  C04B2235/5252 ,  C04B2235/5256 ,  C04B2235/526 ,  C04B2235/5264 ,  C04B2235/5268 ,  C04B2235/614 ,  C04B2235/6587 ,  C04B2235/96 ,  C04B2237/343 ,  C04B2237/366 ,  C04B2237/38 ,  Y10T428/12035 ,  Y10T428/12056 ,  Y10T428/197

摘要： Coated ceramic filler materials comprised of ceramic particles, fibers, whiskers, etc. having at least two substantially continuous coatings thereon are provided. The coatings are selected so that the interfacial shear strength between the ceramic filler material and the first coating, between coatings, or between the outer coating and the surrounding matrix material, are not equal so as to permit debonding and pull-our when fracture occurs. The resultant, multi-coated ceramic filler materials may be employed to provide composites, especially ceramic matrix composites, with increased fracture toughness. The ceramic filler materials are designed to be particularly compatible with ceramic matrices formed by directed oxidation of precursor metals, but such ceramic filler materials are also adaptable for use in many other composite material systems. In a preferred embodiment, the coatings are applied to the ceramic fiber plies or preforms by CVD. Accordingly, coating depositions which are more uniform through the preform cross-section have been achieved by assembling the preform with exterior fabric plies having greater gas permeability than the fibrous preform or fabric plies located deeper in the preform interior. In another preferred embodiment, at least one additional filler material different in some respect from a first fibrous filler material is provided to the permeable mass to be infiltrated with matrix material. Specifically, the additional filler material is provided for the purpose of tailoring at least one additional property of the self-supporting composite body to be formed not already tailored by the first fibrous filler material.

摘要翻译： 提供了由其上具有至少两个基本上连续的涂层的陶瓷颗粒，纤维，晶须等组成的涂覆陶瓷填料。 选择涂层使得陶瓷填充材料与第一涂层之间，涂层之间或外涂层与周围基体材料之间的界面剪切强度不相等，从而当断裂发生时允许剥离和拉伸。 所得多层陶瓷填料可用于提供具有增加的断裂韧性的复合材料，特别是陶瓷基复合材料。 陶瓷填充材料被设计成与通过前体金属的直接氧化形成的陶瓷基质特别相容，但是这种陶瓷填料也适用于许多其它复合材料体系。 在优选的实施方案中，通过CVD将涂层施加到陶瓷纤维层或预制件上。 因此，通过将预成型件与比预制件内部更深的纤维预制件或织物层具有更大的气体渗透性的外部织物层组装，已经实现了通过预成型件横截面更均匀的涂层沉积。 在另一个优选的实施方案中，至少一种不同于第一纤维状填料的附加填料材料被提供到渗透物质以被基体材料渗透。 具体地说，附加的填充材料是为了定制尚未由第一纤维状填料材料制成的自支撑复合体的至少一种附加性能而设置的。

公开(公告)号：US5638886A

公开(公告)日：1997-06-17

申请号：US561565

申请日：1995-11-22

申请人： Michael Kevork Aghajanian ,  Alan Scott Nagelberg ,  Christopher Robin Kennedy

发明人： Michael Kevork Aghajanian ,  Alan Scott Nagelberg ,  Christopher Robin Kennedy

IPC分类号： B22F3/26 ,  C22C1/10 ,  B22D19/14

CPC分类号： B22F3/26 ,  C22C1/1036 ,  C22C2001/1063 ,  C22C2204/00

摘要： The present invention relates to a novel method for forming metal matrix composite bodies and novel products produced by the method. Particularly, a permeable mass of filler material or a preform is provided which has included therein at least some matrix metal powder. Moreover, an infiltration enhancer and/or an infiltration enhancer precursor and/or an infiltrating atmosphere are in communication with the filler material or preform, at least at some point during the process, which permits molten matrix metal, upon contact with the filler material or preform, to spontaneously infiltrate the filler material or preform. The presence of powdered matrix metal in the preform or filler material reduces the relative volume fraction of filler material to matrix metal.

摘要翻译： 本发明涉及一种形成金属基体复合体的新方法和该方法制备的新型产品。 特别地，提供了可渗透的填充材料或预制件，其中包括至少一些基质金属粉末。 此外，渗透增强剂和/或渗透增强剂前体和/或渗透气氛至少在该过程中的某一点处与填料或预型体连通，这允许熔融基体金属在与填充材料接触时或 预成型件，以自发地渗透填料或预制件。 在预成型件或填充材料中存在粉末状基质金属会降低填料与基体金属的相对体积分数。

公开(公告)号：US5851686A

公开(公告)日：1998-12-22

申请号：US702076

申请日：1996-08-23

申请人： Michael Kevork Aghajanian ,  Ralph Alfred Langensiepen ,  Christopher Robin Kennedy ,  Michael Angelo Rocazella ,  Robert James Wiener ,  Gregory Eugene Hannon ,  John Jennings Crowther ,  Allyn Leslie McCormick

发明人： Michael Kevork Aghajanian ,  Ralph Alfred Langensiepen ,  Christopher Robin Kennedy ,  Michael Angelo Rocazella ,  Robert James Wiener ,  Gregory Eugene Hannon ,  John Jennings Crowther ,  Allyn Leslie McCormick

IPC分类号： C04B41/51 ,  C04B41/88 ,  C22C1/10 ,  B32B5/00 ,  B32B15/20 ,  C22C1/09

CPC分类号： C04B41/009 ,  C04B41/5155 ,  C04B41/88 ,  C22C1/1036 ,  C22C2001/1063 ,  Y10T428/12486 ,  Y10T428/12625

摘要： The present invention relates to the use of a gating means in combination with a spontaneous infiltration process to produce a metal matrix composite body. Particularly, a permeable mass of filler material or a preform is spontaneously infiltrated by molten matrix metal to form a metal matrix composite body. A gating means is provided which controls or limits the areal contact between molten matrix metal and the filler material or preform. The use of a gating means provides for control of the amount of matrix metal which can contact the preform or filler material, which may result in less machining of a formed metal matrix composite body compared with a similar metal matrix composite body made without a gating mean. Moreover, the use of a gating means ameliorates the tendency of a formed metal matrix composite body to warp due to the contact between the formed composite body and matrix metal carcass.

摘要翻译： 本发明涉及门控装置与自发渗透方法的组合以产生金属基质复合体的用途。 特别地，填充材料或预成型件的渗透性质量被熔融基质金属自发渗入以形成金属基质复合体。 提供了控制或限制熔融基体金属与填充材料或预制件之间的面接触的门控装置。 门控装置的使用提供了可以接触预成型件或填充材料的基体金属的量的控制，这可能导致形成的金属基质复合体的机械加工较少，而与不具有门控平均值的类似金属基体复合体相比较 。 此外，浇注装置的使用改善了形成的金属基复合材料体由于形成的复合体与基质金属体之间的接触而翘曲的趋势。