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1. 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。

2. 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。

3. 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。

4. 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。

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