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1.发明授权Method for fabricating fracture-resistant diamond and diamond composite articles 失效制造抗裂金刚石和金刚石复合制品的方法
公开(公告)号：US4931068A
公开(公告)日：1990-06-05
申请号：US237360
申请日：1988-08-29
CPC分类号： E21B10/567 , B23B27/20 , B24D3/007 , B24D3/10 , C04B41/0072 , C04B41/80 , B01J2203/062 , B01J2203/0655 , B01J2203/0685
摘要： A method for consolidating finely divided diamond particles to produce a substantially fully dense article having improved resistance to wear and cracking. Diamond particles are heated to an elevated temperature for compacting to form the fully dense article. The article is then held at an elevated temperature and time sufficient to rearrange and substantially reduce the dislocations in the article resulting during compacting to achieve a substantially strain-free state in the article. The article is then cooled to room temperature after which it may be given an improved leaching treatment to achieve superior thermal stability.
摘要翻译： 一种用于固结细碎金刚石颗粒以产生具有改善的耐磨性和破裂性的基本上致密的制品的方法。 将金刚石颗粒加热到高温以进行压实以形成完全致密的制品。 然后将制品在升高的温度和时间下保持，足以重新排列并显着减少在压实期间产生的制品中的位错，以在制品中实现基本上无应变的状态。 然后将制品冷却至室温，之后可以进行改进的浸出处理以获得优异的热稳定性。
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公开(公告)号：US5563212A
公开(公告)日：1996-10-08
申请号：US248291
申请日：1994-05-24
CPC分类号： C04B38/0022
摘要： The present invention provides for microporous ceramic materials having a surface area in excess of 50 m.sup.2 /gm and an open microporous cell structure wherein the micropores have a mean width of less than 20 Angstroms and wherein said microporous structure comprises a volume of greater than about 0.015 cm.sup.3 /gm of the ceramic. The invention also provides for a preceramic composite intermediate composition comprising a mixture of a ceramic precursor and finely divided particles comprising a non-silicon containing ceramic, carbon, or an inorganic compound having a decomposition temperature in excess of 400.degree. C., whose pyrolysis product in inert atmosphere or in an ammonia atmosphere at temperatures of up to less than about 1100.degree. C. gives rise to the microporous ceramics of the invention. Also provided is a process for the preparation of the microporous ceramics of the invention involving pyrolysis of the ceramic intermediate under controlled conditions of heating up to temperatures of less than 1100.degree. C. to form a microporous ceramic product.
摘要翻译： 本发明提供了具有超过50m 2 / gm的表面积的微孔陶瓷材料和开孔的微孔孔结构，其中微孔具有小于20埃的平均宽度，并且其中所述微孔结构包括大于约0.015的体积 cm3 / gm的陶瓷。 本发明还提供一种预陶瓷复合中间体组合物，其包含陶瓷前体和包含非硅含量陶瓷，碳或分解温度超过400℃的无机化合物的细碎颗粒的混合物，其热分解产物 在惰性气氛中或在高达少于约1100℃的氨气氛中，产生本发明的微孔陶瓷。 还提供了制备本发明的微孔陶瓷的方法，其包括在加热至低于1100℃的温度的受控条件下陶瓷中间体的热解，以形成微孔陶瓷产品。
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公开(公告)号：US4818481A
公开(公告)日：1989-04-04
申请号：US23851
申请日：1987-03-09
CPC分类号： B22F3/20 , C22C32/0036
摘要： Disclosed is a method for extruding fine grain aluminum mechanically alloyed powder material such that the resulting extruded product is substantially free of texture, which method comprises extruding a billet of the powder material having a mean grain size less than about 5 microns through a die having an internal contour which conforms substantially to the formula: ##EQU1## where R is the radius of the die contour at any given point x along the major axis of the die orifice from its entry plane, R.sub.o is the radius of the billet, and K is an arbitrary constant.
摘要翻译： 公开了一种用于挤出细晶粒铝机械合金化粉末材料的方法，使得所得挤出产品基本上不含质地，该方法包括通过具有小于约5微米的模具挤出平均粒度小于约5微米的粉末材料坯料， 内部轮廓基本符合以下公式：
其中R是沿着模孔从其入口平面的长轴在任何给定点x处的模具轮廓的半径，Ro是坯料的半径，K是 任意常数。 -
公开(公告)号：US06624228B1
公开(公告)日：2003-09-23
申请号：US08668640
申请日：1996-06-21
IPC分类号： C08K334
CPC分类号： C04B38/0022 , C04B35/56 , C04B38/0058 , C04B35/58
摘要： The present invention provides for microporous ceramic materials having a surface area in excess of 50 m2/gm and an open microporous cell structure wherein the micropores have a mean width of less than 20 Angstroms and wherein said microporous structure comprises a volume of greater than about 0.015 cm3/gm of the ceramic. The invention also provides for a preceramic composite intermediate composition comprising a mixture of a ceramic precursor and finely divided particles comprising a non-silicon containing ceramic, carbon, or an inorganic compound having a decomposition temperature in excess of 400° C., whose pyrolysis product in inert atmosphere or in an ammonia atmosphere at temperatures of up to less than about 1100° C. gives rise to the microporous ceramics of the invention. Also provided is a process for the preparation of the microporous ceramics of the invention involving pyrolysis of the ceramic intermediate under controlled conditions of heating up to temperatures of less than 1100° C. to form a microporous ceramic product.
摘要翻译： 本发明提供具有超过50m 2 / gm的表面积的开孔微孔结构，其中微孔具有小于20埃的平均宽度的微孔陶瓷材料，并且其中所述微孔结构包括更大的体积 大于约0.015cm 3 / gm的陶瓷。 本发明还提供了一种预陶瓷复合中间体组合物，其包含陶瓷前体和包含非硅含量陶瓷，碳或分解温度超过400℃的无机化合物的细碎颗粒的混合物，其热分解产物 在惰性气氛中或在高达少于约1100℃的氨气氛中，产生本发明的微孔陶瓷。 还提供了制备本发明的微孔陶瓷的方法，其包括在加热至低于1100℃的温度的受控条件下陶瓷中间体的热解，以形成微孔陶瓷产品。
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公开(公告)号：US5902759A
公开(公告)日：1999-05-11
申请号：US789326
申请日：1997-01-21
申请人： John Pickett Dismukes , Jack Wayne Johnson , Edward William Corcoran, Jr. , Joseph Vallone , James J. Pizzulli, Jr. , Michael P. Anderson
发明人： John Pickett Dismukes , Jack Wayne Johnson , Edward William Corcoran, Jr. , Joseph Vallone , James J. Pizzulli, Jr. , Michael P. Anderson
CPC分类号： C04B38/0022
摘要： The present invention provides for microporous ceramic materials having a surface area in excess of 70 m.sup.2 /gm and an open microporous cell structure wherein the micropores have a mean width of less than 20 Angstroms and wherein said microporous structure comprises a volume of greater than about 0.03 cm.sup.3 /gm of the ceramic. The invention also provides for a preceramic composite intermediate composition comprising a mixture of a ceramic precursor and finely divided silicon carbide or silicon nitride, whose pyrolysis product in inert atmosphere or in an ammonia atmosphere at temperatures of up to less than about 1100.degree. C. gives rise to the microporous ceramics of the invention. Also provided is a process for the preparation of the microporous ceramics of the invention involving pyrolysis of the ceramic intermediate under controlled conditions of heating up to temperatures of less than 1100.degree. C. to form a microporous ceramic product.
摘要翻译： 本发明提供了具有超过70m 2 / gm的表面积的微孔陶瓷材料和一种开孔微孔孔结构，其中微孔具有小于20埃的平均宽度，其中所述微孔结构包括大于约0.03的体积 cm3 / gm的陶瓷。 本发明还提供了一种陶瓷前体陶瓷复合材料中间体组合物，其包含陶瓷前体和细分碳化硅或氮化硅的混合物，其热解产物在惰性气氛中或在氨气氛中在高于约1100℃的温度下给出 上升到本发明的微孔陶瓷。 还提供了制备本发明的微孔陶瓷的方法，其包括在加热至低于1100℃的温度的受控条件下陶瓷中间体的热解，以形成微孔陶瓷产品。
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公开(公告)号：US5643987A
公开(公告)日：1997-07-01
申请号：US248290
申请日：1994-05-24
申请人： John Pickett Dismukes , Jack Wayne Johnson , Edward William Corcoran, Jr. , Joseph Vallone , James J. Pizzulli, Jr. , Michael P. Anderson
发明人： John Pickett Dismukes , Jack Wayne Johnson , Edward William Corcoran, Jr. , Joseph Vallone , James J. Pizzulli, Jr. , Michael P. Anderson
CPC分类号： C04B38/0022
摘要： The present invention provides for microporous ceramic materials having a surface area in excess of 70 m.sup.2 /gm and an open microporous cell structure wherein the micropores have a mean width of less than 20 Angstroms and wherein said microporous structure comprises a volume of greater than about 0.03 cm.sup.3 /gm of the ceramic. The invention also provides for a preceramic composite intermediate composition comprising a mixture of a ceramic precursor and finely divided silicon carbide or silicon nitride, whose pyrolysis product in inert atmosphere or in an ammonia atmosphere at temperatures of up to less than about 1100.degree. C. gives rise to the microporous ceramics of the invention. Also provided is a process for the preparation of the microporous ceramics of the invention involving pyrolysis of the ceramic intermediate under controlled conditions of heating up to temperatures of less than 1100.degree. C. to form a microporous ceramic product.
摘要翻译： 本发明提供了具有超过70m 2 / gm的表面积的微孔陶瓷材料和一种开孔微孔孔结构，其中微孔具有小于20埃的平均宽度，其中所述微孔结构包括大于约0.03的体积 cm3 / gm的陶瓷。 本发明还提供了一种陶瓷前体陶瓷复合材料中间体组合物，其包含陶瓷前体和细分碳化硅或氮化硅的混合物，其热解产物在惰性气氛中或在氨气氛中在高于约1100℃的温度下给出 上升到本发明的微孔陶瓷。 还提供了制备本发明的微孔陶瓷的方法，其包括在加热至低于1100℃的温度的受控条件下陶瓷中间体的热解，以形成微孔陶瓷产品。
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公开(公告)号：US4647304A
公开(公告)日：1987-03-03
申请号：US729576
申请日：1985-05-02
CPC分类号： B22F9/04 , C22C1/1084 , C22C32/0015 , Y10S75/956
摘要： Disclosed is a method for mechanically compositing metal powders to produce composite metal powder material having a substantially homogeneous dispersion of refractory particles dispersed throughout a metallic matrix and being substantially free of oxide scale. Preferably the composite powder has a mean particle size less than about 50 microns and a mean grain size of less than about 0.5 microns which method comprises milling the metal powders with one or more refractory compounds in the presence of a cryogenic material.
摘要翻译： 公开了一种用于机械复合金属粉末以制备复合金属粉末材料的方法，所述复合金属粉末材料具有分散在整个金属基体中并且基本上不含氧化皮的难熔颗粒的基本上均匀的分散体。 优选地，复合粉末具有小于约50微米的平均粒度和小于约0.5微米的平均粒度。该方法包括在低温材料存在下用一种或多种耐火化合物研磨金属粉末。
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公开(公告)号：US4619699A
公开(公告)日：1986-10-28
申请号：US729742
申请日：1985-05-02
CPC分类号： B22F9/04 , C22C1/1084 , C22C32/0015 , Y10S75/956
摘要： Disclosed are dispersion strengthened composite metal powders having an average particle size of less than about 50 microns and an average grain size within the particle of about 0.05 to 0.6 microns.
摘要翻译： 公开了平均粒度小于约50微米的分散强化复合金属粉末和颗粒内的平均晶粒尺寸为约0.05至0.6微米。
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