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

US4166841A Method for making pure beta silicon carbide 失效
标题翻译：制造纯β碳化硅的方法
公开(公告)号：US4166841A
公开(公告)日：1979-09-04
申请号：US902306
申请日：1978-05-03
申请人： Jack E. Noakes , Leslie L. Terner
发明人： Jack E. Noakes , Leslie L. Terner
IPC分类号： C01B31/36
CPC分类号： C01B31/36 , C01P2004/34 , C01P2004/36
摘要： A method is taught for making beta silicon carbide in a micro balloon structure, that is, a spherical type structure in which the beta silicon carbide forms only a thin wall of the balloon structure. If desired, the micro balloon structure, which is porous, may be crushed to form beta silicon carbide of a very finely divided size. The method is accomplished by pyrolyzing microballoon structures formed of an organic material so that the material breaks down to leave carbon behind in the microballoon structure. This carbon is reacted with silicon at an appropriate temperature to form the pure beta silicon carbide in the microballoon shape.
摘要翻译： {PG，1教导了一种制造微球体结构中的β碳化硅的方法，即球形结构，其中β碳化硅仅形成球囊结构的薄壁。如果需要，可以将多孔的微球体结构压碎以形成非常细碎尺寸的β碳化硅。该方法通过热解由有机材料形成的微球结构来实现，使得材料分解以在微孔结构中留下碳。该碳在适当的温度下与硅反应以形成微球形状的纯β碳化硅。

2. 发明授权

US4044110A Method of forming a silicon carbide article - III 失效
标题翻译：形成碳化硅制品的方法 - III
公开(公告)号：US4044110A
公开(公告)日：1977-08-23
申请号：US619427
申请日：1975-10-03
申请人： Jack E. Noakes , Hiroshi Sato , Leslie L. Terner
发明人： Jack E. Noakes , Hiroshi Sato , Leslie L. Terner
IPC分类号： C04B35/573 , C01B31/36
CPC分类号： C04B35/573
摘要： A method of forming a silicon carbide article is disclosed. Selected weight percentages of silicon carbide particles, graphite particles, if desired, and a thermosetting binder are mixed together and molded into an article by molding techniques which operates on the basis that the thermosetting binder forms a continuous medium about all the particles supported therein. The molded article is heated in the absence of oxygen and the thermosetting binder breaks down to form a low density, vitreous carbon phase. The article is heated in an oxygen containing environment to remove excess surface carbon. The article is silicided at an elevated temperature by penetration of the article through its pore structure with a reactable form of silicon.
摘要翻译：公开了一种形成碳化硅制品的方法。如果需要，将碳化硅颗粒，石墨颗粒和热固性粘合剂的选定重量百分比混合在一起并通过模制技术模制成制品，所述模塑技术的操作基于所述热固性粘合剂形成连续的介质，其中所有的颗粒都支撑在其中。模制品在不存在氧气的情况下被加热，并且热固性粘合剂分解形成低密度的玻璃碳相。将物品在含氧环境中加热以除去多余的表面碳。该制品在升高的温度下通过物品穿过其孔结构以可反应形式的硅进行硅化。

3. 发明授权

US4195049A Method of increasing the strength of a beta silicon carbide article 失效
标题翻译：增加β碳化硅制品强度的方法
公开(公告)号：US4195049A
公开(公告)日：1980-03-25
申请号：US924122
申请日：1978-07-13
申请人： Jack E. Noakes , Leslie L. Terner
发明人： Jack E. Noakes , Leslie L. Terner
IPC分类号： C04B35/573 , C04B35/56
CPC分类号： C04B35/573
摘要： A strong beta silicon carbide article is formed from a moldable mixture including beta silicon carbide particles, from about 1/16% by weight to no more than 1/4% by weight of the total weight of the moldable mixture of niobium carbide particles and a binder for supporting these particles for a molding operation. The mixture is molded to form the shape of an article, and the article is pyrolized so that volatile portions of the binder are driven off and the remaining portions broken down to a carbon phase. The carbon phase is transformed to beta silicon carbide in a siliciding operation. The addition of the small percentage of niobium carbide unexpectedly increases the strength of the finished beta silicon carbide article.
摘要翻译：一种强大的β碳化硅制品由包括β碳化硅颗粒的可模制混合物形成，其中碳化硅颗粒占碳化铌颗粒的可模制混合物的总重量的约1/16重量％至不超过1/4重量％用于支撑用于模制操作的这些颗粒的粘合剂。将该混合物成型以形成制品的形状，并将制品热解，使得粘合剂的挥发部分被排出，其余部分分解成碳相。在硅化操作中碳相转化为β碳化硅。添加少量的碳化铌意外地增加了完成的β碳化硅制品的强度。

4. 发明授权

US4067955A Method of forming a silicon carbide article 失效
标题翻译：形成碳化硅制品的方法
公开(公告)号：US4067955A
公开(公告)日：1978-01-10
申请号：US619428
申请日：1975-10-03
申请人： Jack E. Noakes , Hiroshi Sato , Leslie L. Terner
发明人： Jack E. Noakes , Hiroshi Sato , Leslie L. Terner
IPC分类号： C04B35/573 , C01B31/36
CPC分类号： C04B35/573
摘要： A method of forming a silicon carbide article is disclosd. Selected weight percentages of silicon carbide particles, graphite particles, if desired, and a thermosetting binder are mixed together and molded into an article by molding techniques which operate on the basis that the thermosetting binder forms a continuous medium about all the particles supported therein. The molded article is heated in the absence of oxygen and the thermosetting binder breaks down to form a low density, vitreous carbon phase. The article is heated in the absence of oxygen to a selected temperature at which the article is maintained for a period of time in a gaseous environment consisting of nitrogen preferably with a small amount of hydrogen therein. The hydrogen-nitrogen treatment is effective to cleanse the article and insure that there is an adequate pore structure through the article for a later siliciding operation to be carried out thereon. The article is silicided at an elevated temperature by penetration of the article through its pore structure with a reactable form of silicon.
摘要翻译：公开了一种形成碳化硅制品的方法。如果需要，将碳化硅颗粒，石墨颗粒和热固性粘合剂的选定重量百分比混合在一起并通过模制技术模制成制品，其基于热固性粘合剂围绕其中所载着的所有颗粒形成连续介质而工作。模制品在不存在氧气的情况下被加热，并且热固性粘合剂分解形成低密度的玻璃碳相。在不存在氧气的情况下将制品加热至选定的温度，在该温度下，在由氮气优选以其中少量的氢气组成的气体环境中将物品保持一段时间。氢氮处理对于清洁制品是有效的，并且确保通过制品具有足够的孔结构以进行其后的硅化操作。该制品在升高的温度下通过物品穿过其孔结构以可反应形式的硅进行硅化。

5. 发明授权

US4280973A Process for producing Si.sub.3 N.sub.4 base articles by the cold press sinter method 失效
标题翻译：通过冷压烧结法生产Si3N4基底制品的方法
公开(公告)号：US4280973A
公开(公告)日：1981-07-28
申请号：US94248
申请日：1979-11-14
申请人： David Moskowitz , Leslie L. Terner
发明人： David Moskowitz , Leslie L. Terner
IPC分类号： C22C29/16 , B23P15/28 , C04B35/584 , C04B35/597 , C04B35/58
CPC分类号： C04B35/584 , C04B35/597
摘要： A method of making Si.sub.3 N.sub.4 based cutting tools (and the resulting product) is disclosed. A mixture is formed of three powders: a first powder of at least 75% crystalline Si.sub.3 N.sub.4, a second powder selected from the group Y.sub.2 O.sub.3, MgO, CeO.sub.2 and ZrO.sub.2, and a third powder selected from the group consisting of Al.sub.2 O.sub.3, WC, Wsi.sub.2, W and TiC. The mixture is cold pressed to a density of 50-70% of theoretical and then sintered to full density without the application of pressure.
摘要翻译：公开了制造Si 3 N 4基切削工具（以及所得产品）的方法。混合物由三种粉末形成：第一粉末为至少75％的结晶Si 3 N 4，第二粉末，其选自Y 2 O 3，MgO，CeO 2和ZrO 2，以及选自Al 2 O 3，WC，Wsi 2， W和TiC。将混合物冷压至理论值的50-70％的密度，然后在不施加压力的情况下烧结至全密度。

6. 发明授权

US4226914A Novel spraying composition, method of applying the same and article produced thereby 失效
标题翻译：新型喷雾组合物，其施用方法及由此制得的制品
公开(公告)号：US4226914A
公开(公告)日：1980-10-07
申请号：US907530
申请日：1978-05-19
申请人： Leslie L. Terner , David Moskowitz , Roy L. Van Alsten
发明人： Leslie L. Terner , David Moskowitz , Roy L. Van Alsten
IPC分类号： C04B41/87 , B23B27/14 , C04B41/50 , C23C4/04 , C23C4/06 , C23C4/10 , B05D1/08 , B32B9/04 , B32B13/04 , C01B31/36
CPC分类号： C23C4/04 , B23B27/148 , C04B41/5059 , C23C4/06
摘要： This application discloses a new powder composition which may be plasma sprayed onto the surface of an article to provide a protective coating therefor. The protective coating may be resistant to heat, wear, and corrosion. The coating may also provide a thermal or radiation barrier.In particular, the coating composition for arc plasma spraying consists of finely divided silicon carbide mixed with finely divided silicon. This coating composition is applied to a substrate by developing a plasma spray, feeding the coating composition to the plasma spray and directing the plasma spray at an exposed surface of the substrate so that the exposed substrate is coated with a coating which consists essentially of beta silicon carbide and silicon.The new article of manufacture disclosed in this application, is a substrate with a tightly adherent coating thereon consisting essentially of beta silicon carbide and silicon. The substrate may be any material, either metallic or non-metallic, to which the coating adheres. The coating may provide the substrate with wear resistant characteristics as, for example, if the substrate is to be used for machining metals or as a valve seat in an aluminum engine. The substrate, with the coating thereon, may be used to withstand severe temperatures as, for example, in rocket nozzles and other areas where a substrate would be subjected to extreme temperatures.
摘要翻译：本申请公开了一种新的粉末组合物，其可以被等离子体喷涂在制品的表面上以提供其保护涂层。保护涂层可以耐热，耐磨和耐腐蚀。涂层还可以提供热或辐射屏障。特别地，用于电弧等离子体喷涂的涂料组合物是由精细分散的碳化硅与细分散的硅混合。通过显影等离子喷涂将该涂料组合物施加到基材上，将涂料组合物进料到等离子喷涂中，并将等离子喷涂引导到基板的暴露表面，使得暴露的基材涂覆有基本上由β硅碳化物和硅。本申请中公开的新制品是其上具有紧密粘附的基材，其基本上由β碳化硅和硅组成。衬底可以是涂层粘附到的任何金属或非金属材料。涂层可以为基材提供耐磨特性，例如，如果基材用于加工金属或作为铝发动机中的阀座。具有其上的涂层的基底可以用于承受诸如火箭喷嘴和基板将经受极端温度的其它区域的严酷的温度。

7. 发明授权

US4288495A Article coated with beta silicon carbide and silicon 失效
标题翻译：文章涂有β碳化硅和硅
公开(公告)号：US4288495A
公开(公告)日：1981-09-08
申请号：US118709
申请日：1980-02-04
申请人： Leslie L. Terner , Roy L. Van Alsten , David Moskowitz
发明人： Leslie L. Terner , Roy L. Van Alsten , David Moskowitz
IPC分类号： B23B27/14 , C04B41/50 , C23C4/04 , C23C4/06 , B05D1/08 , B32B9/04 , B32B13/04 , C01B31/36
CPC分类号： C23C4/04 , B23B27/148 , C04B41/5059 , C23C4/06 , Y10S60/909
摘要： This application discloses a new powder composition which may be plasma sprayed onto the surface of an article to provide a protective coating therefor. The protective coating may be resistant to heat, wear, and corrosion. The coating may also provide a thermal or radiation barrier.In particular, the coating composition for arc plasma spraying consists of finely divided silicon carbide mixed with finely divided silicon. This coating composition is applied to a substrate by developing a plasma spray, feeding the coating composition to the plasma spray and directing the plasma spray at an exposed surface of the substrate so that the exposed substrate is coated with a coating which consists essentially of beta silicon carbide and silicon.The new article of manufacture disclosed in this application, is a substrate with a tightly adherent coating thereon consisting essentially of beta silicon carbide and silicon. The substrate may be any material, either metallic or non-metallic, to which the coating adheres. The coating may provide the substrate with wear resistant characteristics as, for example, if the substrate is to be used for machining metals or as a valve seat in an aluminum engine. The substrate, with the coating thereon, may be used to withstand severe temperatures as, for example, in rocket nozzles and other areas where a substrate would be subjected to extreme temperatures.
摘要翻译：本申请公开了一种新的粉末组合物，其可以被等离子体喷涂在制品的表面上以提供其保护涂层。保护涂层可以耐热，耐磨和耐腐蚀。涂层还可以提供热或辐射屏障。特别地，用于电弧等离子体喷涂的涂料组合物是由精细分散的碳化硅与细分散的硅混合。通过显影等离子喷涂将该涂料组合物施加到基材上，将涂料组合物进料到等离子喷涂中，并将等离子喷涂引导到基板的暴露表面，使得暴露的基材涂覆有基本上由β硅碳化物和硅。本申请中公开的新制品是其上具有紧密粘附的基材，其基本上由β碳化硅和硅组成。衬底可以是涂层粘附到的任何金属或非金属材料。涂层可以为基材提供耐磨特性，例如，如果基材用于加工金属或作为铝发动机中的阀座。具有其上的涂层的基底可以用于承受诸如火箭喷嘴和基板将经受极端温度的其它区域的严酷的温度。

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