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1. 发明授权

US08226741B2 Process for preparing metal powders having low oxygen content, powders so-produced and uses thereof 有权
标题翻译：具有低氧含量的金属粉末的制备方法，如此制备的粉末及其用途
公开(公告)号：US08226741B2
公开(公告)日：2012-07-24
申请号：US12444263
申请日：2007-10-03
申请人： Leonid N. Shekhter , Steven A. Miller , Leah F. Haywiser , Rong-Chein Richard Wu
发明人： Leonid N. Shekhter , Steven A. Miller , Leah F. Haywiser , Rong-Chein Richard Wu
IPC分类号： B22F1/00
CPC分类号： B22F1/0088 , B05D1/12 , B05D2401/32 , B22F1/0085 , B22F2999/00 , C23C24/04 , B22F2201/10 , B22F2202/13 , B22F9/20
摘要： The present invention is directed to a process for the preparation of a metal powder having a purity at least as high as the starting powder and having an oxygen content of 10 ppm or less comprising heating said metal powder containing oxygen in the form of an oxide, with the total oxygen content being from 50 to 3000 ppmf in an inert atmosphere at a pressure of from 1 bar to 10−7 to a temperature at which the oxide of the metal powder becomes thermodynamically unstable and removing the resulting oxygen via volatilization. The metal powder is preferably selected from the group consisting of tantalum, niobium, molybdenum, hafnium, zirconium, titanium, vanadium, rhenium and tungsten. The invention also relates to the powders produced by the process and the use of such powders in a cold spray process.
摘要翻译：本发明涉及制备纯度至少与起始粉末一样高且氧含量为10ppm以下的金属粉末的方法，包括加热含氧形式的氧的金属粉末，其总氧含量为50-3000ppmf，在惰性气氛中，压力为1bar至10-7至金属粉末的氧化物变为热力学不稳定的温度，并通过挥发除去所得氧。金属粉末优选选自钽，铌，钼，铪，锆，钛，钒，铼和钨。本发明还涉及通过该方法生产的粉末和在冷喷涂方法中使用这种粉末。

2. 发明申请

US20100272889A1 PROCESS FOR PREPARING METAL POWDERS HAVING LOW OXYGEN CONTENT, POWDERS SO-PRODUCED AND USES THEREOF 有权
标题翻译：用于制备具有低氧含量的金属粉末的方法，其生产的粉末及其用途
公开(公告)号：US20100272889A1
公开(公告)日：2010-10-28
申请号：US12444263
申请日：2007-10-03
申请人： Leonid N. Shekhter , Steven A. Miller , Leah F. Haywiser , Rong-Chein Richard Wu
发明人： Leonid N. Shekhter , Steven A. Miller , Leah F. Haywiser , Rong-Chein Richard Wu
IPC分类号： B05D1/12 , C22C27/02 , C22C27/04 , C22C14/00 , C22C16/00 , C22C27/00
CPC分类号： B22F1/0088 , B05D1/12 , B05D2401/32 , B22F1/0085 , B22F2999/00 , C23C24/04 , B22F2201/10 , B22F2202/13 , B22F9/20
摘要： The present invention is directed to a process for the preparation of a metal powder having a purity at least as high as the starting powder and having an oxygen content of 10 ppm or less comprising heating said metal powder containing oxygen in the form of an oxide, with the total oxygen content being from 50 to 3000 ppmf in an inert atmosphere at a pressure of from 1 bar to 10−7 to a temperature at which the oxide of the metal powder becomes thermodynamically unstable and removing the resulting oxygen via volatilization. The metal powder is preferably selected from the group consisting of tantalum, niobium, molybdenum, hafnium, zirconium, titanium, vanadium, rhenium and tungsten. The invention also relates to the powders produced by the process and the use of such powders in a cold spray process.
摘要翻译：本发明涉及制备纯度至少与起始粉末一样高且氧含量为10ppm以下的金属粉末的方法，包括加热含氧形式的氧的金属粉末，其总氧含量为50-3000ppmf，在惰性气氛中，压力为1bar至10-7至金属粉末的氧化物变为热力学不稳定的温度，并通过挥发除去所得氧。金属粉末优选选自钽，铌，钼，铪，锆，钛，钒，铼和钨。本发明还涉及通过该方法生产的粉末和在冷喷涂方法中使用这种粉末。

3. 发明申请

US20080078268A1 Process for preparing metal powders having low oxygen content, powders so-produced and uses thereof 审中-公开
标题翻译：具有低氧含量的金属粉末的制备方法，如此制备的粉末及其用途
公开(公告)号：US20080078268A1
公开(公告)日：2008-04-03
申请号：US11542055
申请日：2006-10-03
申请人： Leonid N. Shekhter , Rong-Chein Richard Wu , Steven A. Miller , Leah F. Haywiser
发明人： Leonid N. Shekhter , Rong-Chein Richard Wu , Steven A. Miller , Leah F. Haywiser
IPC分类号： B22F9/20
CPC分类号： B22F1/0088 , B05D1/12 , B05D2401/32 , B22F1/0085 , B22F2999/00 , C23C24/04 , B22F2201/10 , B22F2202/13 , B22F9/20
摘要： The present invention is directed to a process for the preparation of a metal powder having a purity at least as high as the starting powder and having an oxygen content of 10 ppm or less comprising heating said metal powder containing oxygen in the form of an oxide, with the total oxygen content being from 50 to 3000 ppm, in an inert atmosphere at a pressure of from 1 bar to 10−7 to a temperature at which the oxide of the metal powder becomes thermodynamically unstable and removing the resulting oxygen via volatilization. The metal powder is preferably selected from the group consisting of tantalum, niobium, molybdenum, hafnium, zirconium, titanium, vanadium, rhenium and tungsten. The invention also relates to the powders produced by the process and the use of such powders in a cold spray process.
摘要翻译：本发明涉及制备纯度至少与起始粉末一样高且氧含量为10ppm以下的金属粉末的方法，包括加热含氧形式的氧的金属粉末，总氧含量为50-3000ppm，在惰性气氛中，压力为1巴-10-7℃至金属粉末的氧化物变得热力学不稳定并除去所产生的氧气通过挥发。金属粉末优选选自钽，铌，钼，铪，锆，钛，钒，铼和钨。本发明还涉及通过该方法生产的粉末和在冷喷涂方法中使用这种粉末。

4. 发明申请

US20120291592A1 PROCESS FOR PREPARING METAL POWDERS HAVING LOW OXYGEN CONTENT, POWDERS SO-PRODUCED AND USES THEREOF 有权
标题翻译：用于制备具有低氧含量的金属粉末的方法，其生产的粉末及其用途
公开(公告)号：US20120291592A1
公开(公告)日：2012-11-22
申请号：US13529148
申请日：2012-06-21
申请人： Leonid N. Shekhter , Steven a. Miller , Leah F. Haywiser , Rong-Chein R. Wu
发明人： Leonid N. Shekhter , Steven a. Miller , Leah F. Haywiser , Rong-Chein R. Wu
IPC分类号： B22F1/00
CPC分类号： B22F1/0088 , B05D1/12 , B05D2401/32 , B22F1/0085 , B22F2999/00 , C23C24/04 , B22F2201/10 , B22F2202/13 , B22F9/20
摘要： In various embodiments, low-oxygen metal powder is produced by heating a metal powder to a temperature at which an oxide of the metal powder becomes thermodynamically unstable and applying a pressure to volatilize the oxygen.
摘要翻译：在各种实施方案中，通过将金属粉末加热到金属粉末的氧化物变得热力学不稳定并施加压力以使氧气挥发的温度来制备低氧金属粉末。

5. 发明授权

US08715386B2 Process for preparing metal powders having low oxygen content, powders so-produced and uses thereof 有权
标题翻译：具有低氧含量的金属粉末的制备方法，如此制备的粉末及其用途
公开(公告)号：US08715386B2
公开(公告)日：2014-05-06
申请号：US13529148
申请日：2012-06-21
申请人： Leonid N. Shekhter , Steven A. Miller , Leah F. Haywiser , Rong-Chein R. Wu
发明人： Leonid N. Shekhter , Steven A. Miller , Leah F. Haywiser , Rong-Chein R. Wu
IPC分类号： B22F1/00 , B22F9/16 , B05D1/12
CPC分类号： B22F1/0088 , B05D1/12 , B05D2401/32 , B22F1/0085 , B22F2999/00 , C23C24/04 , B22F2201/10 , B22F2202/13 , B22F9/20
摘要： In various embodiments, low-oxygen metal powder is produced by heating a metal powder to a temperature at which an oxide of the metal powder becomes thermodynamically unstable and applying a pressure to volatilize the oxygen.
摘要翻译：在各种实施方案中，通过将金属粉末加热到金属粉末的氧化物变得热力学不稳定并施加压力以使氧气挥发的温度来制备低氧金属粉末。

6. 发明申请

US20080081122A1 Process for producing a rotary anode and the anode produced by such process 审中-公开
标题翻译：用于制造旋转阳极和通过这种方法制造的阳极的方法
公开(公告)号：US20080081122A1
公开(公告)日：2008-04-03
申请号：US11542268
申请日：2006-10-03
申请人： Leah F. Haywiser , Leonid N. Shekhter
发明人： Leah F. Haywiser , Leonid N. Shekhter
IPC分类号： C23C4/08
CPC分类号： C23C4/02 , C23C4/134 , H01J35/108
摘要： The present invention is directed to an improved process for manufacturing a rotary anode for an x-ray tube, said rotary anode comprising a molybdenum support member on which a target layer consisting essentially of tungsten or a tungsten-rhenium alloy is provided by plasma spraying, the improvement comprising: a) preheating the support member to a temperature of from 1150° C. to 1600° C., b) placing the support member in a gaseous atmosphere containing hydrogen and having a pressure of from 0.5 to 0.9 bars and wherein hydrogen is present in a molar ratio of hydrogen to tungsten dioxide of from 5:1 to 50:1, and c) plasma spraying the target layer onto the support layer in said gaseous atmosphere. The invention is also directed to the anode produced by the process.
摘要翻译：本发明涉及一种用于制造用于X射线管的旋转阳极的改进方法，所述旋转阳极包括钼支撑构件，其上通过等离子喷涂提供基本上由钨或钨 - 铼合金组成的靶层，改进包括：a）将支撑构件预热至1150℃至1600℃的温度，b）将支撑构件放置在含有氢的压力为0.5至0.9巴的气态气氛中，其中氢以5:1至50:1的氢与二氧化钨的摩尔比存在，以及c）在所述气体气氛中将目标层等离子体喷涂到载体层上。本发明还涉及通过该方法制备的阳极。

7. 发明申请

US20080118031A1 Metallic alloy for X-ray target 审中-公开
标题翻译：金属合金用于X射线靶
公开(公告)号：US20080118031A1
公开(公告)日：2008-05-22
申请号：US11601154
申请日：2006-11-17
申请人： Leah F. Haywiser , Leonid Natan Shekhter
发明人： Leah F. Haywiser , Leonid Natan Shekhter
IPC分类号： H01J35/08 , C22C27/04
CPC分类号： H01J35/08 , C22C27/04 , H01J2235/081
摘要： The present invention is directed a molybdenum alloy consisting essentially of a) molybdenum present in a major amount, b) tantalum and tungsten as major metal alloy additions and c) a minor amount of an element selected from the group consisting of boron, hafnium, carbon and mixtures thereof. The invention is also directed to an X-ray tube anode composed of a molybdenum alloy body having a focal track thereon, with the body consisting essentially of the above-described molybdenum alloy.
摘要翻译：本发明涉及一种钼合金，主要由a）主要含有的钼，b）钽和钨作为主要金属合金添加物，和c）少量选自硼，铪，碳的元素及其混合物。本发明还涉及由其上具有焦点轨道的钼合金体构成的X射线管阳极，其主体由上述钼合金组成。

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