专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4571331A Ultrafine powder of silicon carbide, a method for the preparation thereof and a sintered body therefrom 失效
标题翻译：超细碳化硅粉末，其制备方法和烧结体
公开(公告)号：US4571331A
公开(公告)日：1986-02-18
申请号：US560389
申请日：1983-12-12
申请人： Morinobu Endou , Minoru Takamizawa , Tatsuhiko Hongu , Taishi Kobayashi , Akira Hayashida , Nobuaki Urasato , Hiromi Ohsaki , Nichiro Suzuki , Takasi Toide
发明人： Morinobu Endou , Minoru Takamizawa , Tatsuhiko Hongu , Taishi Kobayashi , Akira Hayashida , Nobuaki Urasato , Hiromi Ohsaki , Nichiro Suzuki , Takasi Toide
IPC分类号： C01B31/36 , C04B35/565 , C04B35/575
CPC分类号： B82Y30/00 , C01B31/36 , C04B35/565 , C04B35/575 , C01P2002/72 , C01P2002/82 , C01P2004/62 , C01P2004/64 , C01P2006/40
摘要： The invention provides a method for the preparation of an ultrafine powder of silicon carbide having an extremely fine and uniform particle size distribution of spherical agglomerate particles each formed of crystallites of 5 nm or smaller in size. The silicon carbide powder is prepared by the vapor phase pyrolysis of a specified methyl hydrogen(poly)silane as diluted with a carrier gas, e.g. hydrogen, to give a concentration of 40% by volume or lower at a temperature of 750.degree. to 1600.degree. C. The silicon carbide powder can readily be sintered at a temperature of 1750.degree. to 2500.degree. C. even without addition of a sintering aid to give a sintered body of extremely high density reaching 80% or larger of the theoretical value which can never be obtained of the conventional silicon carbide powders.
摘要翻译：本发明提供一种制备碳化硅超细粉末的方法，其具有均匀的颗粒尺寸分布的球形聚集体颗粒，它们各自由5nm或更小的微晶形成。碳化硅粉末通过气相热分解制备，所述气相热分解用载气稀释的特定甲基氢（聚）硅烷。氢气，在750〜1600℃的温度下浓度为40体积％以下。碳化硅粉末可以容易地在1750〜2500℃的温度下烧结，即使不添加烧结助剂得到非常高密度的烧结体达到常规碳化硅粉末不可获得的理论值的80％以上。

2. 发明授权

US4560589A Method for providing a coating layer of silicon carbide on substrate surface 失效
标题翻译：在基板表面上提供碳化硅涂层的方法
公开(公告)号：US4560589A
公开(公告)日：1985-12-24
申请号：US533649
申请日：1983-09-19
申请人： Morinobu Endou , Minoru Takamizawa , Tatsuhiko Hongu , Taishi Kobayashi
发明人： Morinobu Endou , Minoru Takamizawa , Tatsuhiko Hongu , Taishi Kobayashi
IPC分类号： C04B41/50 , C04B41/87 , C23C16/32 , D01F11/12 , D06M11/00
CPC分类号： C04B41/009 , C04B41/5059 , C04B41/87 , C23C16/325 , D01F11/126 , Y10S438/931
摘要： The invention provides a method for providing a highly protective coating layer of silicon carbide on to the surface of a substrate. The method comprises pyrolyzing the vapor of an organosilicon compound having at least one hydrogen atom directly bonded to the silicon atom in a molecule but having no halogen or oxygen atom directly bonded to the silicon atom at a temperature of 700.degree. to 1400.degree. C. in contact with the substrate surface to deposit silicon carbide thereon. In particular, the method is useful to form a sheath-and-core structure composed of the core of carbon filament and the coating layer of silicon carbide so that the carbon fibers are imparted with greatly improved resistance against oxidation and chemicals including molten metals when the carbon fibers are used as a reinforcing material of a fiber-reinforced metal composite as well as with improved affinity with molten resins and metals which is also an advantageous property as a reinforcing material for such matrix materials.
摘要翻译：本发明提供了一种在基材表面上提供碳化硅高保护性涂层的方法。该方法包括将分子中具有至少一个与硅原子键合的至少一个氢原子的有机硅化合物的蒸气热分解，但在700℃至1400℃的温度下直接与硅原子键合的卤原子或氧原子，与基底表面接触以在其上沉积碳化硅。特别地，该方法可用于形成由碳丝芯和碳化硅的涂层组成的皮 - 芯结构，从而使得碳纤维在氧化时具有极大的改善的抗性和包括熔融金属在内的化学物质碳纤维用作纤维增强金属复合材料的增强材料，并且与熔融树脂和金属具有改进的亲和性，这也是作为这种基体材料的增强材料的有利特性。

3. 发明授权

US4492681A Method for the preparation of silicon carbide fibers 失效
标题翻译：碳化硅纤维的制备方法
公开(公告)号：US4492681A
公开(公告)日：1985-01-08
申请号：US505250
申请日：1983-06-17
申请人： Morinobu Endou , Minoru Takamizawa , Tatsuhiko Hongu , Taishi Kobayashi
发明人： Morinobu Endou , Minoru Takamizawa , Tatsuhiko Hongu , Taishi Kobayashi
IPC分类号： C01B31/36 , C04B35/571 , C30B25/00 , D01F9/10
CPC分类号： D01F9/10 , C04B35/571 , C30B25/005 , C30B29/36
摘要： The invention provides a novel method for the preparation of silicon carbide fibers capable of being performed at a relatively low temperature and giving fibers of relatively large lengths by the vapor-phase pyrolysis of an organosilicon compound on a substrate. The method comprises contacting an organosilicon compound, which should have no halogen and oxygen atoms directly bonded to the silicon atoms and have preferably at least one hydrogen atom directly bonded to the silicon atom in a molecule, with a finely divided powder of a metal or a compound of a metal, such as copper, silver, vanadium, niobium, tantalum, iron, cobalt, nickel, palladium and platinum, at a temperature of 700.degree. to 1450.degree. C. so that the powder serves simultaneously as a catalyst and nucleus for the growth of the silicon carbide fibers thereon formed by the pyrolysis of the organosilicon compound. When the organosilicon compound is deficient of the carbon content relative to the silicon so that free silicon may be formed by the pyrolysis, admixing of a hydrocarbon to the feed of the organosilicon compound can solve the problem.
摘要翻译：本发明提供了一种制备能够在较低温度下进行的碳化硅纤维的新方法，并且通过基底上的有机硅化合物的气相热解产生相当长的纤维。该方法包括将不具有卤素和氧原子的有机硅化合物直接键合到硅原子上，并且优选具有至少一个与分子中的硅原子键合的至少一个氢原子，与金属或金属的化合物，例如铜，银，钒，铌，钽，铁，钴，镍，钯和铂，在700°至1450℃的温度下，使粉末同时作为催化剂和核通过有机硅化合物的热解形成的碳化硅纤维的生长。当有机硅化合物相对于硅缺乏碳含量时，可以通过热解形成游离硅，将烃与有机硅化合物的进料混合可以解决问题。

4. 发明授权

US4596741A Carbon fibers having improved surface properties and a method for the preparation thereof 失效
标题翻译：具有改善的表面性质的碳纤维及其制备方法
公开(公告)号：US4596741A
公开(公告)日：1986-06-24
申请号：US558845
申请日：1983-12-06
申请人： Morinobu Endou , Susumu Ueno , Tatsuhiko Hongu , Minoru Takamizawa
发明人： Morinobu Endou , Susumu Ueno , Tatsuhiko Hongu , Minoru Takamizawa
IPC分类号： D06M10/00 , C04B41/45 , D01F11/12 , D06M11/00 , D06M11/77 , D06M101/00 , D06M101/40 , B32B9/00 , B05D3/06 , D02G3/00
CPC分类号： C04B41/009 , C04B41/4584 , D01F11/126 , Y10T428/2918 , Y10T428/292 , Y10T428/2933 , Y10T428/30
摘要： The invention provides carbon fibers coated on the surface with a layer of an amorphous silicon carbide of the composition Si.sub.x C.sub.y, x and y each being a positive number with the proviso that the ratio y/x is in the range from 0.5 to 2.5, formed by the exposure of the carbon fibers to low temperature plasma generated in an atmosphere containing an organosilicon compound having no oxygen or chlorine atom directly bonded to the silicon atom in the molecule. The carbon fibers are imparted with greatly increased resistance against air oxidation at high temperatures as well as remarkably improved affinity or wettability with plastics and molten metals along with very low reactivity with molten metals so that the carbon fibers are useful as a reinforcing material in the composite materials of carbon fiber-reinforced plastics and metals.
摘要翻译：本发明提供涂覆在表面上的碳纤维，其中组成为SixCy，x和y的非晶碳化硅层为正数，条件是y / x的比值在0.5至2.5的范围内，由在含有直接与分子中的硅原子键合的氧或氯原子的有机硅化合物的气氛中，碳纤维暴露于低温等离子体中。赋予碳纤维在高温下具有大大提高的抗空气氧化性，并且与塑料和熔融金属显着提高亲和性或润湿性，同时与熔融金属具有非常低的反应性，使得碳纤维可用作复合材料中的增强材料碳纤维增强塑料和金属材料。

5. 发明授权

US07294955B2 Electrode for electron gun and electron gun using same 失效
标题翻译：电子枪用电子枪和电子枪使用
公开(公告)号：US07294955B2
公开(公告)日：2007-11-13
申请号：US11121107
申请日：2005-05-04
申请人： Morinobu Endou , Yoshihisa Suda , Osamu Shimizu
发明人： Morinobu Endou , Yoshihisa Suda , Osamu Shimizu
IPC分类号： H01J1/00 , H01J29/46 , H01J29/50
CPC分类号： B82Y10/00 , H01J1/304 , H01J9/025 , H01J9/18 , H01J2201/30446 , H01J2201/30469
摘要： An electrode for an electron gun and an electron gun using same are provided which make use of stable carbon material having small work function and which permit orientation control to be achieved and which can be manufactured at a low cost. An electrode for an electron gun uses carbon electrode(s) formed from amorphous carbon and carbon nanotubes or carbon nanofibers and molded in linear shape. The carbon electrode is obtained by mixing a resin composition such as chlorinated vinyl chloride resin, furan resin, etc., which forms non-graphitizing carbon after carbonizing, with a carbon powder such as carbon nanotubes or carbon nanofibers and, after extrusion, molding and carbonizing the molding obtained.
摘要翻译：提供一种电子枪用电极及使用该电极枪的电子枪，其利用具有小功函数的稳定碳材料，并且能够实现取向控制并且可以以低成本制造。用于电子枪的电极使用由无定形碳和碳纳米管或碳纳米纤维形成的碳电极，并且成型为直线形状。碳电极通过将碳化后形成非石墨化碳的氯化氯乙烯树脂，呋喃树脂等树脂组合物与碳纳米管或碳纳米纤维等碳粉混合，挤出成型后，碳化所得的模制品。

6. 发明申请

US20050206294A1 Electrode for electron gun and electron gun using same 失效
标题翻译：电子枪用电子枪和电子枪使用
公开(公告)号：US20050206294A1
公开(公告)日：2005-09-22
申请号：US11121107
申请日：2005-05-04
申请人： Morinobu Endou , Yoshihisa Suda , Osamu Shimizu
发明人： Morinobu Endou , Yoshihisa Suda , Osamu Shimizu
IPC分类号： H01J29/04 , H01J1/304 , H01J9/02 , H01J9/18 , H01J31/12 , H01J1/00 , H01J29/46 , H01J29/50
CPC分类号： B82Y10/00 , H01J1/304 , H01J9/025 , H01J9/18 , H01J2201/30446 , H01J2201/30469
摘要： An electrode for an electron gun and an electron gun using same are provided which make use of stable carbon material having small work function and which permit orientation control to be achieved and which can be manufactured at a low cost. An electrode for an electron gun uses carbon electrode(s) formed from amorphous carbon and carbon nanotubes or carbon nanofibers and molded in linear shape. The carbon electrode is obtained by mixing a resin composition such as chlorinated vinyl chloride resin, furan resin, etc., which forms non-graphitizing carbon after carbonizing, with a carbon powder such as carbon nanotubes or carbon nanofibers and, after extrusion, molding and carbonizing the molding obtained.
摘要翻译：提供一种电子枪用电极及使用该电极枪的电子枪，其利用具有小功函数的稳定碳材料，并且能够实现取向控制并且可以以低成本制造。用于电子枪的电极使用由无定形碳和碳纳米管或碳纳米纤维形成的碳电极，并且成型为直线形状。碳电极通过将碳化后形成非石墨化碳的氯化氯乙烯树脂，呋喃树脂等树脂组合物与碳纳米管或碳纳米纤维等碳粉混合，挤出成型后，碳化所得的模制品。

7. 发明授权

US06902457B2 Electrode for electron gun and electron gun using same 失效
公开(公告)号：US06902457B2
公开(公告)日：2005-06-07
申请号：US10414019
申请日：2003-04-16
申请人： Morinobu Endou , Yoshihisa Suda , Osamu Shimizu
发明人： Morinobu Endou , Yoshihisa Suda , Osamu Shimizu
IPC分类号： H01J29/04 , H01J1/304 , H01J9/02 , H01J9/18 , H01J31/12 , H01J1/02
CPC分类号： B82Y10/00 , H01J1/304 , H01J9/025 , H01J9/18 , H01J2201/30446 , H01J2201/30469
摘要： An electrode for an electron gun and an electron gun using same are provided which make use of stable carbon material having small work function and which permit orientation control to be achieved and which can be manufactured at a low cost. An electrode for an electron gun uses carbon electrode(s) formed from amorphous carbon and carbon nanotubes or carbon nanofibers and molded in linear shape. The carbon electrode is obtained by mixing a resin composition such as chlorinated vinyl chloride resin, furan resin, etc., which forms non-graphitizing carbon after carbonizing, with a carbon powder such as carbon nanotubes or carbon nanofibers and, after extrusion, molding and carbonizing the molding obtained.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式