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公开(公告)号：US08766522B1
公开(公告)日：2014-07-01
申请号：US13105249
申请日：2011-05-11
申请人： Steven B Fairchild , Benji Maruyama
发明人： Steven B Fairchild , Benji Maruyama
CPC分类号： H01J1/28 , H01J1/304 , H01J1/3042 , H01J9/025 , H01J11/40 , H01J25/34 , H01J29/467 , H01J2201/304 , H01J2201/3043 , H01J2201/30469 , H01J2329/0431 , H01J2329/0455
摘要： Improved field emission cathodes comprise a fiber of highly aligned and densely packed single-wall carbon nanotubes, double-wall carbon nanotubes, multi-wall carbon nanotubes, grapheme nanoribbons, carbon nanofibers, and/or carbon planar nanostructures. The fiber cathodes provide superior current carrying capacity without degradation or adverse effects under high field strength testing. The fibers also can be configured as multi-fiber field emission cathodes, and the use of low work function coatings and different tip configurations further improves their performance.
摘要翻译： 改进的场发射阴极包括高度排列和密集堆叠的单壁碳纳米管，双壁碳纳米管，多壁碳纳米管，图形纳米带，碳纳米纤维和/或碳平面纳米结构的纤维。 纤维阴极在高场强测试下提供卓越的载流能力而不降解或不利影响。 纤维也可以配置为多纤维场发射阴极，并且使用低功函数涂层和不同尖端配置进一步提高其性能。
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2.发明授权
公开(公告)号：US5961030A
公开(公告)日：1999-10-05
申请号：US964567
申请日：1997-11-05
申请人： Benji Maruyama
发明人： Benji Maruyama
CPC分类号： C04B41/009 , C04B41/4584 , C22C47/04 , C22C49/00 , B22F2998/00 , Y10T428/12486
摘要： A method for controlling the interface in a titanium matrix composite between the titanium matrix material and a silicon carbide reinforcing filament or fiber which comprises treating such filament or fiber with a phosphorus-containing compound, and thereafter incorporating the treated fiber into a titanium matrix composite. The quantity of phosphorus remaining on the fiber, following treatment, can be miniscule, so long as at least a trace amount of phosphorus remains on the fiber.
摘要翻译： 用于控制钛基质材料和碳化硅增强丝或纤维之间的钛基复合材料中的界面的方法，其包括用含磷化合物处理这种丝或纤维，然后将经处理的纤维掺入钛基复合材料中。 处理后残留在纤维上的磷的量可以是微小的，只要在纤维上至少留有痕量的磷。
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公开(公告)号：US5494634A
公开(公告)日：1996-02-27
申请号：US4002
申请日：1993-01-15
CPC分类号： B22F1/025 , C22C32/0084 , C22C49/14 , Y10S264/36
摘要： Graphite or carbon particles with a graphitic skin are intercalated with a compound including an oxidized form of a metal and then reduced in a hydrogen atmosphere. This process reduces the driving force for the galvanic reaction between the particles and active metals in aqueous environments. The particles may be present as a reinforcement for a metal matrix (e.g., graphite/aluminum metal matrix composites) or as a reinforcement for a non-metallic material (e.g., graphite/polyimide, graphite/polyester or graphite/cyanate composites). In the latter case, the composite is adjacent to a metal in a structure.By way of example, the graphite or carbon particle may be a fiber, the metal subject to attack may be aluminum or magnesium, and the intercalation compound may be NiCl.sub.2.
摘要翻译： 具有石墨表皮的石墨或碳颗粒插入包含氧化形式的金属的化合物，然后在氢气气氛中还原。 该方法降低了在水性环境中颗粒和活性金属之间的电偶反应的驱动力。 颗粒可以作为金属基质（例如石墨/铝金属基质复合材料）的增强剂或作为非金属材料（例如石墨/聚酰亚胺，石墨/聚酯或石墨/氰酸酯复合材料）的增强剂存在。 在后一种情况下，复合材料与结构中的金属相邻。 作为示例，石墨或碳颗粒可以是纤维，受到侵蚀的金属可以是铝或镁，并且嵌入化合物可以是NiCl 2。
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公开(公告)号：US5374414A
公开(公告)日：1994-12-20
申请号：US710860
申请日：1991-06-06
CPC分类号： B82Y30/00 , C04B20/0056 , C04B20/006 , C23C16/01 , C23C16/271 , C23C16/4418 , D01F9/127 , C04B2111/00793 , C04B2111/00836 , C04B2111/00844
摘要： Filamentous substrates are coated with diamond by a chemical vapor deposin process. The substrate may then be etched away to form a diamond filament. In a preferred embodiment, the substrate is copper-coated graphite. The copper initially passivates the graphite, permitting diamond nucleation thereon. As deposition continues, the copper-coated graphite is etched away by the active hydrogen used in the deposition process. As a result a substrateless diamond tubule is formed. Diamond-coated and diamond filaments are useful as reinforcement materials for composites, as filtration media in chemical and purification processes, in biomedical applications as probes and medicinal dispensers, and in such esoteric areas as chaff media for jamming RF frequencies.
摘要翻译： 通过化学气相沉积工艺将丝状基底涂覆金刚石。 然后可以将衬底蚀刻掉以形成金刚石细丝。 在优选的实施方案中，基底是铜涂覆的石墨。 铜最初钝化石墨，允许金刚石成核。 随着沉积的继续，铜涂覆的石墨被沉积过程中使用的活性氢腐蚀掉。 结果形成了无基底的金刚石小管。 金刚石涂层和金刚石细丝可用作复合材料的增强材料，作为化学和纯化工艺中的过滤介质，作为探针和药物分配器的生物医学应用，以及用于干扰RF频率的谷壳介质等深奥区域。
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公开(公告)号：US07582275B1
公开(公告)日：2009-09-01
申请号：US10767498
申请日：2004-01-26
申请人： Benji Maruyama
发明人： Benji Maruyama
IPC分类号： C09C1/56
CPC分类号： C09C1/44 , C01B32/174 , C01P2004/10 , D01D10/00 , D01D11/02 , D01F9/127 , Y02P20/544 , Y10S423/11
摘要： The method of the present invention utilizes high pressure, near-supercritical CO2 within a pressure vessel to process filamentary nanocarbon to debulk, disperse, purify, surface treat, pre-impregnate, and micronize the carbon nanofibers. In accordance with the invention, near-supercritical CO2 is utilized within a pressure vessel to effect the desired process upon filamentary nanocarbon. For example, a quantity of filamentary nanocarbon can be effectively debulked, de-agglomerated and disentangled by agitating the mixture within the pressure vessel. When the CO2 is released from the pressure vessel, the filamentary nanocarbon exhibits a dramatic reduction in volume. Other nanofiber processes can be performed such as surface treating and pre-impregnation by introduction of the desirable species into the near-supercritical CO2 prior to processing. Purification processing can additionally be performed by introducing a co-solvent into the near-supercritical CO2.
摘要翻译： 本发明的方法利用压力容器内的高压，近超临界CO 2来处理丝状纳米碳以减少，分散，净化，表面处理，预先浸渍和微粉化碳纳米纤维。 根据本发明，在压力容器内使用近超临界CO 2以在丝状纳米碳上实现所需的方法。 例如，通过搅动压力容器内的混合物，一定量的丝状纳米碳可以被有效地减粘，去结块和解开。 当二氧化碳从压力容器释放时，丝状纳米碳体积显着减少。 可以在处理之前通过将所需物质引入近超临界CO 2来进行其它纳米纤维工艺，例如表面处理和预浸渍。 净化处理可另外通过将辅助溶剂引入近超临界CO 2来进行。
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6.发明授权公开(公告)号：US07364692B1
公开(公告)日：2008-04-29
申请号：US11126517
申请日：2005-05-09
IPC分类号： B22F3/12
CPC分类号： B22F1/025 , B22F3/17 , B22F2009/043 , B22F2998/00 , C22C29/065 , C22C32/0063 , C25D3/02 , C23C20/02 , C23C16/00
摘要： Metal-matrix composites with combinations of physical and mechanical properties desirable for specific applications can be obtained by varying and controlling selected parameters in the material formation processes, particularly by increasing the microstructural homogeneity of the composite, while maintaining a constant mixture ratio or volume fraction. In one embodiment of the invention, a CuSiC composite having increased thermal conductivity is obtained by closely controlling the size of the SiC particles. In another embodiment of the invention, AlSiC composites which exhibit increased ultimate tensile and yield strengths are made by closely controlling the size of SiC and Al particles.
摘要翻译： 通过改变和控制材料形成过程中选定的参数，特别是通过增加复合材料的显微结构均匀性，同时保持恒定的混合比或体积分数，可以获得具有特定应用所需的物理和机械性能组合的金属基复合材料。 在本发明的一个实施方案中，通过密切控制SiC颗粒的尺寸获得具有增加的导热性的CuSiC复合材料。 在本发明的另一个实施方案中，通过紧密地控制SiC和Al颗粒的尺寸来制备表现出增加的极限拉伸强度和屈服强度的AlSiC复合材料。
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公开(公告)号：US06972109B1
公开(公告)日：2005-12-06
申请号：US10295549
申请日：2002-11-13
CPC分类号： C22C32/0063 , B22F2998/00 , B22F2998/10 , B22F1/0011 , C22C1/1005 , B22F3/04 , B22F3/1007 , B22F3/17 , C22C1/1084 , B22F3/1208 , B22F3/20
摘要： Metal-matrix composites with combinations of physical and mechanical properties desirable for specific applications can be obtained by varying and controlling selected parameters in the material formation processes, particularly by increasing the microstructural homogeneity of the composite, while maintaining a constant mixture ratio or volume fraction. In one embodiment of the invention, a CuSiC composite having increased thermal conductivity is obtained by closely controlling the size of the SiC particles. In another embodiment of the invention, AlSiC composites which exhibit increased ultimate tensile and yield strengths are made by closely controlling the size of SiC and Al particles.
摘要翻译： 通过改变和控制材料形成过程中选定的参数，特别是通过增加复合材料的显微结构均匀性，同时保持恒定的混合比或体积分数，可以获得具有特定应用所需的物理和机械性能组合的金属基复合材料。 在本发明的一个实施方案中，通过密切控制SiC颗粒的尺寸获得具有增加的导热性的CuSiC复合材料。 在本发明的另一个实施方案中，通过紧密地控制SiC和Al颗粒的尺寸来制备表现出增加的极限拉伸强度和屈服强度的AlSiC复合材料。
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公开(公告)号：US6033622A
公开(公告)日：2000-03-07
申请号：US160207
申请日：1998-09-21
申请人： Benji Maruyama
发明人： Benji Maruyama
CPC分类号： C22C32/00 , B22F1/025 , B22F2999/00
摘要： Novel processes for fabricating metal matrix composites consisting of discontinuous reinforcing particles in a metal matrix are described. In one aspect, reinforcing particles are coated with a metal matrix material by means of chemical vapor deposition using a volatile metal-containing compound, followed by consolidation of the metal-coated particles. In another aspect, reinforcing particles are coated with a metal matrix material by means of electrochemical deposition of a metal, followed by consolidation of the metal-coated particles. In yet another aspect, reinforcing particles coated with a metal matrix material by one of the aforesaid methods are blended with metal or alloy particles not containing such reinforcement, then consolidated.
摘要翻译： 描述了在金属基质中制造由不连续增强颗粒组成的金属基复合材料的新方法。 在一个方面，通过使用含挥发性金属的化合物进行化学气相沉积，然后将金属包覆的颗粒固结，用金属基质材料涂覆增强颗粒。 另一方面，通过金属的电化学沉积，然后将金属包覆的颗粒固结，用金属基体材料涂覆增强颗粒。 在另一方面，通过上述方法之一用金属基质材料涂覆的增强颗粒与不含这种增强剂的金属或合金颗粒混合，然后固化。
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公开(公告)号：US5851737A
公开(公告)日：1998-12-22
申请号：US863236
申请日：1997-05-27
申请人： Benji Maruyama
发明人： Benji Maruyama
IPC分类号： G03F7/00
CPC分类号： C04B35/80 , C04B35/111 , C04B35/113 , C04B35/44 , C04B35/443 , C04B35/486 , C04B35/62844 , C04B35/62847 , C22C47/04 , C22C47/20 , C22C49/12 , C04B2235/3208 , C04B2235/3224 , C04B2235/3225 , C04B2235/5216 , C04B2235/5224 , C04B2235/5244 , Y10S430/146 , Y10T428/2933
摘要： A method for controlling the interface in a composite between the matrix material and reinforcing filaments or fibers in a composite structure which comprises the application of a patterned coating or combination of coatings on the reinforcing filaments or fibers to vary the bond between the reinforcement and the matrix. Proportioning of weak- and strong-bonded areas, their respective strengths, and design of bonding patterns can be tailored to the materials requirements of the composite. This method can be employed to prepare metal, ceramic and polymer matrix composites.
摘要翻译： 用于控制复合结构中的基体材料和增强细丝或纤维之间的复合物中的界面的方法，其包括在增强细丝或纤维上施加图案化涂层或涂层组合以改变增强材料和基体之间的结合 。 弱结合区域和强粘结区域的比例，各自的优势和粘合模式的设计可以根据复合材料的材料要求进行调整。 该方法可用于制备金属，陶瓷和聚合物基质复合材料。
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