公开(公告)号：US20090011211A1

公开(公告)日：2009-01-08

申请号：US12074703

申请日：2008-03-05

申请人： Jerry Weinstein ,  Jai R. Singh ,  Michael K. Aghajanian ,  Eric M. Klier

发明人： Jerry Weinstein ,  Jai R. Singh ,  Michael K. Aghajanian ,  Eric M. Klier

IPC分类号： B32B5/00 ,  B22D23/00

CPC分类号： C22C1/1036 ,  B22D19/14 ,  B22D27/08 ,  B22F2202/01 ,  B22F2998/00 ,  C22C2001/1047 ,  C22C47/08

摘要： A metal matrix composite (MMC) material that is castable, or can be rendered castable, is melted and cast into a mold or crucible, and at least a portion of the plurality of reinforcement bodies is permitted to at least partially settle out of their suspension in the molten matrix metal. The casting is solidified, and the sparsely loaded supernatant is separated from the zone of the casting containing the sediment—either by cutting, sawing, etc., or by decanting the supernatant when the casting was still in a molten condition. In a preferred embodiment, during the settling and/or the solidification process, mechanical energy, such as in the form of oscillations, is applied to the MMC melt. The applied energy permits the reinforcement bodies to nestle and pack more efficiently, thereby increasing their volumetric loading in the cast composite.

摘要翻译： 可浇注或可浇铸的金属基质复合材料（MMC）材料被熔化并浇注到模具或坩埚中，并且允许多个增强体的至少一部分至少部分地从其悬浮液中沉淀出来 在熔融基质金属中。 将铸件固化，通过切割，锯切等将稀疏负载的上清液从含有沉淀物的铸件区域分离，或者当铸件仍处于熔融状态时通过倾析上清液。 在优选的实施方案中，在沉降和/或凝固过程期间，将机械能，例如以振荡的形式施加到MMC熔体。 所施加的能量允许增强体更有效地嵌套和包装，从而增加其在铸造复合材料中的体积载荷。

公开(公告)号：US06609452B1

公开(公告)日：2003-08-26

申请号：US09757826

申请日：2001-01-10

申请人： Allyn L. McCormick ,  Michael K. Aghajanian

发明人： Allyn L. McCormick ,  Michael K. Aghajanian

IPC分类号： F41H500

CPC分类号： F41H5/0435 ,  B32B2315/02 ,  C04B35/563 ,  C04B35/565 ,  C04B35/573 ,  C04B35/62655 ,  C04B2235/3821 ,  C04B2235/3826 ,  C04B2235/405 ,  C04B2235/422 ,  C04B2235/428 ,  C04B2235/48 ,  C04B2235/5248 ,  C04B2235/5436 ,  C04B2235/5472 ,  C04B2235/728 ,  C04B2235/77 ,  C04B2235/80 ,  C04B2235/94 ,  C04B2235/96 ,  C04B2237/365 ,  F41H5/0414 ,  Y10T428/2918 ,  Y10T428/292 ,  Y10T428/2929

摘要： Silicon infiltration technology is used to produce ceramic bodies having utility as ballistic armor. In a first aspect of the invention, the ballistic armor includes a reaction-bonded silicon carbide body (RBSC). Good ballistic performance can be advanced by loading the permeable mass or preform to be infiltrated to a high degree with one or more hard fillers, and by limiting the size of the largest particles making up the mass. In a second aspect, the silicon infiltration technology, e.g., siliconizing or reaction-bonding, is used to bond silicon carbide fibers to at least the back surface of a ceramic armor body, thereby enhancing ballistic stopping power. A third aspect of the invention pertains to the ability to engineer RBSC bodies such that there is little dimensional change during processing, thereby permitting high dimensional reproducibility in large-scale production.

摘要翻译： 硅浸渗技术用于生产具有弹道盔甲效用的陶瓷体。 在本发明的第一方面中，防弹装甲包括反应接合碳化硅体（RBSC）。 可以通过将可渗透物质或预型体加载到一个或多个硬填料高度渗透，并通过限制构成质量的最大颗粒的尺寸来提高良好的弹道性能。 在第二方面，硅渗透技术例如硅化或反应粘合用于将碳化硅纤维粘结到至少陶瓷装甲体的后表面，由此增强防弹功能。 本发明的第三方面涉及对RBSC体进行工程化的能力，使得在加工过程中几乎没有尺寸变化，从而允许在大规模生产中具有高尺寸再现性。

公开(公告)号：US06503572B1

公开(公告)日：2003-01-07

申请号：US09621562

申请日：2000-07-21

申请人： W. Michael Waggoner ,  Barry R. Rossing ,  Michael A. Richmond ,  Michael K. Aghajanian ,  Allyn L. McCormick

发明人： W. Michael Waggoner ,  Barry R. Rossing ,  Michael A. Richmond ,  Michael K. Aghajanian ,  Allyn L. McCormick

IPC分类号： B05D118

CPC分类号： C22C1/1036 ,  C04B35/565 ,  C04B35/573 ,  C04B35/62655 ,  C04B41/009 ,  C04B41/5059 ,  C04B41/85 ,  C04B2235/3826 ,  C04B2235/40 ,  C04B2235/402 ,  C04B2235/404 ,  C04B2235/405 ,  C04B2235/407 ,  C04B2235/408 ,  C04B2235/428 ,  C04B2235/5436 ,  C04B2235/5472 ,  C04B2235/604 ,  C04B2235/728 ,  C04B2235/77 ,  C04B2235/80 ,  C04B2235/96 ,  C04B2235/9607 ,  C22C1/1005 ,  C22C2001/1057 ,  Y10T428/249931 ,  Y10T428/252 ,  C04B41/4523 ,  C04B41/4556 ,  C04B41/5096 ,  C04B41/5155

摘要： Improved silicon carbide composites made by an infiltration process feature a metal phase in addition to any residual silicon phase. Not only are properties such as mechanical toughness improved, but the infiltrant can be so engineered as to have much diminished amounts of expansion upon solidification, thereby enhancing net-shape-making capabilities. Further, multi-component infiltrant materials may have a lower liquidus temperature than pure silicon, thereby providing the practitioner greater control over the infiltration process. In particular, the infiltration may be conducted at the lower temperatures, where low-cost but effective bedding or barrier materials can terminate the infiltration process once the infiltrant has migrated through the permeable mass up to the boundary between the mass and the bedding material.

摘要翻译： 通过渗透方法制备的改进的碳化硅复合材料除了任何残留的硅相之外还具有金属相。 不仅可以提高机械韧性等性能，而且可以将渗透剂设计成在凝固时具有大大减少的膨胀量，从而提高网状制造能力。 此外，多成分渗透材料可能具有比纯硅低的液相线温度，从而为从业者提供对渗透过程的更大控制。 特别地，渗透可以在较低温度下进行，其中低成本但有效的床垫或阻挡材料可以在渗透剂已经通过可渗透物质迁移到物质和床上用品之间的边界时终止渗透过程。

公开(公告)号：US5553657A

公开(公告)日：1996-09-10

申请号：US261694

申请日：1994-05-31

申请人： Michael K. Aghajanian ,  Ralph A. Langensiepen ,  Christopher R. Kennedy ,  Michael A. Rocazella ,  Robert J. Wiener ,  Gregory E. Hanon ,  John J. Crowther ,  Allyn L. McCormick

发明人： Michael K. Aghajanian ,  Ralph A. Langensiepen ,  Christopher R. Kennedy ,  Michael A. Rocazella ,  Robert J. Wiener ,  Gregory E. Hanon ,  John J. Crowther ,  Allyn L. McCormick

IPC分类号： C04B35/622 ,  C04B41/51 ,  C04B41/88 ,  C22C1/10 ,  B22D19/14 ,  B22D19/02

CPC分类号： C04B41/88 ,  C04B35/622 ,  C04B41/5155 ,  C22C1/1036 ,  C22C2001/1021 ,  C22C2001/1063

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. In a preferred embodiment, the gating means may comprise a porous material or a precursor to a porous material, which may optionally function as a separation facilitator. Alternatively, the separation facilitator may be provided independent of the gating means.

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。 在优选实施例中，门控装置可以包括多孔材料或多孔材料的前体，其可以任选地用作分离促进剂。 或者，可以独立于门控装置提供分离促进器。

公开(公告)号：US5480676A

公开(公告)日：1996-01-02

申请号：US374389

申请日：1995-01-17

申请人： Birol Sonuparlak ,  Kenneth S. Hatton ,  Dennis J. Landini ,  Sylvia J. Canino ,  Michael K. Aghajanian ,  Aspi N. Patel

发明人： Birol Sonuparlak ,  Kenneth S. Hatton ,  Dennis J. Landini ,  Sylvia J. Canino ,  Michael K. Aghajanian ,  Aspi N. Patel

IPC分类号： C04B35/65 ,  C04B41/00 ,  B05P1/12

CPC分类号： C04B35/652 ,  C04B41/0018

摘要： The present invention relates to methods for producing self-supporting ceramic and ceramic composite bodies having a protective surface region on at least a portion of the surface of the formed bodies, and bodies produced thereby. The protective surface region is formed upon reaction of at least two components of the ceramic or ceramic composite body.

摘要翻译： 本发明涉及在成形体的表面的至少一部分上具有保护表面区域的自支撑陶瓷和陶瓷复合体的制造方法以及由此制造的主体。 保护表面区域是由陶瓷或陶瓷复合体的至少两个成分反应而形成的。

公开(公告)号：US5456306A

公开(公告)日：1995-10-10

申请号：US243662

申请日：1994-05-16

申请人： Michael K. Aghajanian ,  Alan S. Nagelberg

发明人： Michael K. Aghajanian ,  Alan S. Nagelberg

IPC分类号： B22D19/00 ,  B22D19/14 ,  C04B41/51 ,  C04B41/88 ,  C22C21/00 ,  C22C47/08

CPC分类号： C04B41/009 ,  C04B41/5155 ,  C04B41/88 ,  C04B2111/00931

摘要： The present invention relates to the formation of a metal matrix composite body by a spontaneous infiltration technique. Particularly, an infiltration enhancer and/or infiltration enhancer precursor can be positioned at least partially between or at an interface between a matrix metal and a filler material (or preform) which is to be infiltrated by molten matrix metal. Moreover, at least at some point during the process, an infiltrating atmosphere may be in communication with the filler material or preform and/or matrix metal.

公开(公告)号：US5298283A

公开(公告)日：1994-03-29

申请号：US807430

申请日：1991-12-13

申请人： Michael A. Rocazella ,  Kurt J. Becker ,  Michael K. Aghajanian

发明人： Michael A. Rocazella ,  Kurt J. Becker ,  Michael K. Aghajanian

IPC分类号： C22C47/08 ,  C04B41/51 ,  C04B41/88 ,  C22C1/10 ,  B05D1/18

CPC分类号： C04B41/009 ,  C04B41/5155 ,  C04B41/88 ,  C22C1/1036 ,  C04B2111/00931 ,  C22C2001/1063 ,  Y10T428/12486

摘要： The present invention relates to a novel process for forming metal matrix composite bodies. Particularly, an infiltration enhancer and/or an infiltration enhancer precursor and/or an infiltrating atmosphere are in communication with a rigidized filler material or a rigidized preform, at least at some point during the process, which permits molten matrix metal to spontaneously infiltrate the rigidized filler material or rigidized preform. Such spontaneous infiltration occurs without the requirement for the application of any pressure or vacuum.

摘要翻译： 本发明涉及一种形成金属基复合体的新方法。 特别地，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刚性填料或刚性化预型体连通，这允许熔融基质金属自发地渗入刚性 填充材料或刚性预成型件。 发生这种自发性渗透，而不需要施加任何压力或真空。

公开(公告)号：US5280819A

公开(公告)日：1994-01-25

申请号：US841902

申请日：1992-02-25

申请人： Marc S. Newkirk ,  Michael K. Aghajanian ,  Gregory E. Hannon ,  Allyn L. McCormick ,  Gerhard H. Schiroky ,  Michael A. Rocazella ,  Robert C. Kantner

发明人： Marc S. Newkirk ,  Michael K. Aghajanian ,  Gregory E. Hannon ,  Allyn L. McCormick ,  Gerhard H. Schiroky ,  Michael A. Rocazella ,  Robert C. Kantner

IPC分类号： C22C47/08 ,  C04B41/51 ,  C04B41/88 ,  C22C1/10 ,  C22C47/20 ,  B22D19/02

CPC分类号： C04B41/009 ,  C04B41/5155 ,  C04B41/88 ,  C22C1/1036 ,  B22F2003/1014 ,  C04B2111/00931 ,  C22C2001/1063 ,  Y10T428/30

摘要： The present invention relates to a novel process for forming a plurality of thin metal matrix composite bodies. Particularly, an infiltration enhancer and/or an infiltrating atmosphere are in communication with a filler material or preform, at least at some point during the process, which permits molten matrix metal to spontaneously infiltrate the plurality of filler materials or preforms. Such spontaneous infiltration occurs without the application of any pressure or vacuum and occurs in a single step. In an embodiment of the present invention, the filler material may be sprayed upon a thin sheet of matrix metal. Alternatively, the filler material may be shaped via tape casting, slip casting, etc. to provide a thin preform. In another embodiment of the present invention, a body of matrix metal may be coated with a filler material such that upon spontaneous infiltration a metal matrix composite body is produced which inversely replicates the configuration of the original body of matrix metal.

摘要翻译： 本发明涉及一种用于形成多个薄金属基复合体的新方法。 特别地，渗透增强剂和/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，这允许熔融基质金属自发地渗入多种填料或预型体。 这种自发渗透在没有施加任何压力或真空的情况下发生并且发生在单个步骤中。 在本发明的一个实施例中，填充材料可以喷涂在基体金属薄片上。 或者，填充材料可以通过带铸造，滑移浇铸等形成，以提供薄的预成型件。 在本发明的另一个实施例中，基体金属体可以用填充材料涂覆，使得当自发渗透时，产生金属基体复合体，其反向地复制基体金属原体的构型。

公开(公告)号：US5227348A

公开(公告)日：1993-07-13

申请号：US797521

申请日：1991-11-25

申请人： Robert C. Kantner ,  Michael K. Aghajanian ,  Stanislav Antolin ,  Alan S. Nagelberg ,  Ratnesh K. Dwivedi

发明人： Robert C. Kantner ,  Michael K. Aghajanian ,  Stanislav Antolin ,  Alan S. Nagelberg ,  Ratnesh K. Dwivedi

IPC分类号： C04B35/65 ,  C22C29/12

CPC分类号： C04B35/652 ,  C22C29/12

摘要： This invention relates to a method for producing a self-supporting ceramic structure comprising an oxidation reaction product of a parent metal and a vapor-phase oxidant characterized by an altered microstructure attributable to the addition of one or more process modifiers relative to substantially the same oxidation reaction product produced without a process modifier.

摘要翻译： 本发明涉及一种用于生产自支撑陶瓷结构的方法，其包括母体金属和气相氧化剂的氧化反应产物，其特征在于相对于基本上相同的氧化物添加一种或多种工艺改性剂的改变的微结构 产生不含过程改性剂的反应产物。

公开(公告)号：US5164233A

公开(公告)日：1992-11-17

申请号：US785178

申请日：1991-10-29

申请人： Birol Sonuparlak ,  Kenneth S. Hatton ,  Dennis J. Landini ,  Sylvia J. Canino ,  Michael K. Aghajanian

发明人： Birol Sonuparlak ,  Kenneth S. Hatton ,  Dennis J. Landini ,  Sylvia J. Canino ,  Michael K. Aghajanian

IPC分类号： C04B35/65 ,  C04B41/00

CPC分类号： C04B41/0018 ,  C04B35/652

摘要： The present invention relates to methods for producing self-supporting ceramic and ceramic composite bodies having a protective surface region on at least a portion of the surface of the formed bodies, and bodies produced thereby.

摘要翻译： 本发明涉及在成形体的表面的至少一部分上具有保护表面区域的自支撑陶瓷和陶瓷复合体的制造方法以及由此制造的主体。