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1.发明授权Method for forming metal matrix composites having variable filler loadings 失效用于形成具有可变填料负载的金属基复合材料的方法
公开(公告)号：US5638886A
公开(公告)日：1997-06-17
申请号：US561565
申请日：1995-11-22
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。
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2.发明授权Methods for fabricating shapes by use of organometallic, ceramic precursor binders 失效通过使用有机金属，陶瓷前体粘合剂制造形状的方法
公开(公告)号：US5641817A
公开(公告)日：1997-06-24
申请号：US482698
申请日：1995-06-07
申请人： Michael Kevork Aghajanian , Jonathan Wayne Hinton , Alexander Lukacs, III , James Allen Jensen , Marc Stevens Newkirk , Ratnesh Kumar Dwivedi
发明人： Michael Kevork Aghajanian , Jonathan Wayne Hinton , Alexander Lukacs, III , James Allen Jensen , Marc Stevens Newkirk , Ratnesh Kumar Dwivedi
CPC分类号： B22C1/205 , Y10T428/12042
摘要： This invention relates to the discovery of organometallic ceramic precursor binders used to fabricate shaped bodies by different techniques. Exemplary shape making techniques which utilize hardenable, liquid, organometallic, ceramic precursor binders include the fabrication of negatives of parts to be made (e.g., sand molds and sand cores for metalcasting, etc.), as well as utilizing ceramic precursor binders to make shapes directly (e.g., brake shoes, brake pads, clutch parts, grinding wheels, polymer concrete, refractory patches and liners, etc.). In a preferred embodiment, this invention relates to thermosettable, liquid ceramic precursors which provide suitable-strength sand molds and sand cores at very low binder levels and which, upon exposure to molten metalcasting exhibit low emissions toxicity as a result of their high char yields of ceramic upon exposure to heat. Another preferred embodiment of the invention involves the fabrication of preforms used in the formation of composite articles.
摘要翻译： 本发明涉及用于通过不同技术制造成形体的有机金属陶瓷前体粘合剂的发现。 使用可硬化，液体，有机金属，陶瓷前体粘合剂的示例性形状制造技术包括制造要制备的部件的负片（例如，用于金属铸造的砂模和砂芯等），以及利用陶瓷前体粘合剂来形成形状 直接（例如制动蹄，刹车片，离合器部件，砂轮，聚合物混凝土，耐火贴片和衬垫等）。 在一个优选的实施方案中，本发明涉及可热固的液体陶瓷前体，它们以非常低的粘合剂水平提供合适的强度砂模和砂芯，并且在暴露于熔融金属铸造之后，由于它们的高焦炭产率， 陶瓷暴露于热量。 本发明的另一个优选实施例涉及制造用于形成复合制品的预成型件。
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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
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。
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公开(公告)号：US5848349A
公开(公告)日：1998-12-08
申请号：US356334
申请日：1995-02-03
申请人： Marc Stevens Newkirk , Andrew Willard Urquhart , Michael Kevork Aghajanian , Mark Gordon Mortenson , Vilupanur Alwar Ravi , Alan Scott Nagelberg
发明人： Marc Stevens Newkirk , Andrew Willard Urquhart , Michael Kevork Aghajanian , Mark Gordon Mortenson , Vilupanur Alwar Ravi , Alan Scott Nagelberg
CPC分类号： C04B41/009 , C04B41/5155 , C22C1/1036 , B22F2999/00 , C22C2001/1057
摘要： The present invention relates to modifying the properties of a metal matrix composite body by a post formation process treatment and/or a substantially contiguous modification treatment. The post formation process treatment may be applicable to a variety of metal matrix composite bodies produced by various techniques, and is particularly applicable to modifying the properties of a metal matrix composite body produced by a spontaneous infiltration technique. The substantially contiguous modification process may also be used primarily in conjunction with metal matrix composite bodies produced according to a spontaneous infiltration technique. Particularly, at least a portion of the matrix metal of the metal matrix composite body and/or the filler material of the metal matrix composite body is modified or altered during and/or after the formation process.
摘要翻译： PCT No.PCT / US93 / 06065 Sec。 371日期：1995年2月3日 102（e）日期1995年2月3日PCT提交1993年6月25日PCT公布。 WO94 / 00610PC PCT出版物 日本1994年1月6日本发明涉及通过后形成工艺处理和/或基本上连续的改性处理改性金属基质复合体的性质。 后形成处理可以适用于通过各种技术制造的各种金属基复合体，特别适用于通过自发渗透技术制造的金属基复合体的特性。 基本相邻的改性方法也可以主要与根据自发渗透技术制备的金属基质复合体一起使用。 特别地，金属基体复合体的基质金属和/或金属基体复合体的填充材料的至少一部分在形成过程中和/或之后被修饰或改变。
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公开(公告)号：US5654246A
公开(公告)日：1997-08-05
申请号：US451581
申请日：1995-05-26
申请人： Marc Stevens Newkirk , Harry Richard Zwicker , Andrew Willard Urquhart , John Peter Biel , Jack Andrew Kuszyk , Craig Barlow Shumaker , Harold Daniel Lesher , Terry Dennis Claar , Michael Kevork Aghajanian
发明人： Marc Stevens Newkirk , Harry Richard Zwicker , Andrew Willard Urquhart , John Peter Biel , Jack Andrew Kuszyk , Craig Barlow Shumaker , Harold Daniel Lesher , Terry Dennis Claar , Michael Kevork Aghajanian
CPC分类号： C04B35/652 , C04B41/87
摘要： A method of making self-supporting ceramic composite structures having filler embedded therein includes infiltrating a permeable mass of filler with polycrystalline material comprising an oxidation reaction product obtained by oxidation of a parent metal such as aluminum. The self-supporting ceramic composite structure optionally contains therein non-oxidized constituents of the parent metal. The structure is formed by placing a parent metal adjacent to a permeable filler and heating the assembly to melt the parent metal and provide a molten body of parent metal which is contacted with a suitable oxidant. Within a certain temperature region and optionally, aided by one or more dopants in or on the parent metal, molten parent metal will migrate through previously formed oxidation reaction product into contact with the oxidant, causing the oxidation reaction product to grow so as to embed the adjacent filler and provide the composite structure. The parent metal may be provided as a body of metal placed in contact with an exterior surface of the permeable mass. Alternatively, the parent metal may be placed adjacent to the filler material by admixing a plurality of discrete bodies of parent metal (e.g., particulate metal) into the permeable mass. In this embodiment, the growth of oxidation reaction product still embeds the adjacent filler material without substantial change in the size or shape of the permeable mass, but does not result in the creation of voids at the former locations of the bodies of parent metal.
摘要翻译： 制造具有嵌入其中的填料的自支撑陶瓷复合结构的方法包括用包含通过母体金属如铝的氧化获得的氧化反应产物的多晶材料渗透可渗透的填料。 自支撑陶瓷复合结构任选地含有母体金属的非氧化成分。 该结构通过将母体金属放置在可渗透填料附近并加热该组件以熔化母体金属并提供与合适的氧化剂接触的母体金属熔融体而形成。 在一定温度范围内，任选地，由母体金属中或母体金属上的一种或多种掺杂剂辅助，熔融母体金属将迁移通过预先形成的氧化反应产物与氧化剂接触，使氧化反应产物生长，从而嵌入 相邻填料并提供复合结构。 母金属可以设置为与可渗透物质的外表面接触的金属体。 或者，母金属可以通过将多个离散的母体金属（例如，颗粒金属）的主体混合到可渗透物质中而邻近填充材料放置。 在该实施方案中，氧化反应产物的生长仍然嵌入相邻的填充材料，而在渗透性物质的尺寸或形状上没有显着变化，但不会导致在母体金属体的原始位置产生空隙。
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