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    Method for depositing pure metal halide compositions
    3.
    发明授权
    Method for depositing pure metal halide compositions 失效
    沉积纯金属卤化物组合物的方法

    公开(公告)号：US5277889A

    公开(公告)日：1994-01-11

    申请号：US733203

    申请日：1985-05-13

    申请人： Joseph M. Power ,  Ahmad Sarhangi

    发明人： Joseph M. Power ,  Ahmad Sarhangi

    IPC分类号： C01B9/00 ,  C01F7/50 ,  C03C1/00

    CPC分类号： C01B9/00 ,  C01F7/50 ,  C03C1/00 ,  Y10S65/16

    摘要： Metal halide compositions of enhanced purity are produced by vapor phase deposition via reactions involving organometallic starting materials in a process wherein a carbon getter is provided in the reaction zone and/or adjacent the developing metal halide deposit. The carbon getter reduces carbon contamination in the product which can result from side decomposition reactions involving the organometallic starting materials.

    摘要翻译： 通过在涉及有机金属原料的反应中通过气相沉积，在反应区和/或邻近显影金属卤化物沉积物的方法中提供碳吸气剂的方法，生产提高纯度的金属卤化物组合物。 碳吸收剂减少产品中的碳污染，这可能是由于涉及有机金属原料的副反应而产生的。

    Method for the preparation of fine particulate metal-containing compound
    7.
    发明授权
    Method for the preparation of fine particulate metal-containing compound 失效
    制备含微粒金属的化合物的方法

    公开(公告)号：US5207878A

    公开(公告)日：1993-05-04

    申请号：US728182

    申请日：1991-07-10

    申请人： Nobuo Shimo ,  Masato Fujita

    发明人： Nobuo Shimo ,  Masato Fujita

    IPC分类号： B22F9/30 ,  C01B9/00 ,  C01B13/20 ,  C01G21/02 ,  C01G21/16 ,  C01G29/00

    CPC分类号： B22F9/30 ,  C01B13/20 ,  C01B9/00 ,  C01G21/02 ,  C01G21/16 ,  C01G29/00 ,  C01P2004/62

    摘要： A finely divided metal-containing compound can be efficiently prepared by irradiating a mixed vapor phase of an organometallic compound in a concentration to exceed a specified lower limit and a reactant gaseous compound with laser beams having an incident energy density to exceed a specified lower limit. When the reactant gaseous compound in the vapor phase is an oxygen-containing compound, e.g., air, the resultant powdery product is an oxide of the metallic element of the organometallic compound. When the reactant gaseous compound in the vapor phase is a halogen-containing compound, e.g., methyl halides, the resultant powdery product is a halide of the metallic element of the organometallic compound. When the reactant gaseous compound is a second organometallic compound, of which the metallic element is not the same as the metallic element in the first organometallic compound, the resultant powdery product is a composite metallic powder of which the distribution of the two metallic elements is uniform throughout each particle. No particles of either one of the metallic elements alone are contained in the powder as evidenced by the EPMA analysis.

    摘要翻译： 可以通过用浓度超过规定的下限的有机金属化合物的混合气相和具有超过规定下限的激光束的反应性气体化合物来有效地制备细分的含金属化合物。 当气相中的反应性气体化合物是含氧化合物例如空气时，所得粉末产物是有机金属化合物的金属元素的氧化物。 当汽相中的反应性气体化合物是含卤素的化合物，例如甲基卤时，所得的粉末产物是有机金属化合物的金属元素的卤化物。 当反应性气态化合物是第二有机金属化合物时，其金属元素与第一有机金属化合物中的金属元素不同，所得粉末产物是复合金属粉末，其中两种金属元素的分布均匀 遍及每个粒子。 如EPMA分析所证明，粉末中不含有任何一种金属元素的颗粒。

    METHOD AND APPARATUS FOR PRODUCING COMPOUND POWDERS
    9.
    发明申请
    METHOD AND APPARATUS FOR PRODUCING COMPOUND POWDERS 有权
    生产复合粉末的方法和装置

    公开(公告)号：US20160257566A1

    公开(公告)日：2016-09-08

    申请号：US15132070

    申请日：2016-04-18

    申请人： Qualmat, Inc.

    发明人： Bo LIU ,  Hongjie QIU

    IPC分类号： C01B6/24 ,  C01B6/00 ,  C01B17/20 ,  C01B13/32 ,  C01B21/06 ,  C01B9/00

    CPC分类号： C01B6/24 ,  B22F9/08 ,  B22F2009/0824 ,  B22F2999/00 ,  C01B6/00 ,  C01B9/00 ,  C01B13/326 ,  C01B17/20 ,  C01B21/06 ,  C01B21/0602 ,  B22F2201/10

    摘要： A gas atomization apparatus is disclosed for producing high purity fine refractory compound powders. After the system reaches high vacuum, a first stage inert atomizing gas breaks superheated metal melt into droplets and a second stage reactive atomizing gas breaks the droplets further into ultrafine droplets while reacts with them to form refractory compound powders. The first stage atomizing gas is inert gas able to break up melt into droplets and prevent crust formation on the nozzle front. A reaction time enhancer is arranged at bottom of reaction chamber to furnish a reactive gas flow in a reverse direction of the falling droplets and powders. Under the reverse gas flow, the falling droplets and powders change moving direction and travel longer distance in reaction chamber to increase reaction time. This apparatus can produce refractory powders with ultrahigh purity and uniform powder size while maintain high process energy efficiency.

    摘要翻译： 公开了一种用于生产高纯度精细耐火复合粉末的气体雾化装置。 在系统达到高真空之后，第一级惰性雾化气体将过热的金属熔体分解成液滴，第二级反应性雾化气体进一步将液滴分解成超细液滴，同时与其反应形成难熔化合物粉末。 第一级雾化气体是惰性气体，能够将熔体分解成液滴并防止喷嘴前端上的外壳形成。 反应时间增强剂被布置在反应室的底部，以在落下的液滴和粉末的相反方向上提供反应气流。 在反向气流下，滴落的液滴和粉末改变移动方向，并在反应室中行进更长的距离以增加反应时间。 该设备可以生产具有超高纯度和均匀粉末尺寸的耐火粉末，同时保持高的工艺能量效率。

    Method of purifying alkaline-earth and alkali-earth halides for crystal growth
    10.
    发明申请
    Method of purifying alkaline-earth and alkali-earth halides for crystal growth 有权
    碱土金属和碱土金属卤化物的纯化方法用于晶体生长

    公开(公告)号：US20060090690A1

    公开(公告)日：2006-05-04

    申请号：US10977523

    申请日：2004-10-28

    申请人： Christopher Jones

    发明人： Christopher Jones

    IPC分类号： C30B23/00 ,  C30B25/00 ,  C30B28/12 ,  C30B28/14

    CPC分类号： C01B13/0233 ,  C01B9/00 ,  C01B9/08 ,  C30B11/00 ,  C30B29/12

    摘要： An improved technique that reduces the potential for trapped impurities and/or ensuring desired stoichiometry of a grown crystal. Improved contaminant removal is obtained by bubbling a scavenger gas, such as fluorine gas or hydrogen fluoride gas, through a melt of alkaline- or alkali-earth halides, to improve the purity of the melt by removing more volatile metal halides and oxygen contained within the melt. By reacting after the raw material has melted, any oxygen or metal impurities trapped in the raw material is free to react with the scavenger. A desired stoichiometry is achieved as the alkaline- or alkali-earth metals react with the halide in the scavenger gas. Decreasing the amount of impurities in the melt, and using a desired stoichiometeric melt, improves the radiation hardness and transmission properties of resulting ingot grown from the purified raw material. Additionally, this method may decrease the amount of time needed for outgassing. The method may also be used to form a high purity pre-melt, which in turn may be used to grow an ingot with higher purity.

    摘要翻译： 降低捕获的杂质的潜力和/或确保生长晶体的所需化学计量的改进技术。 通过将清除剂气体（如氟气或氟化氢气体）鼓泡通过碱土金属或碱土金属卤化物的熔体来获得改进的污染物去除，以通过除去更多的挥发性金属卤化物和 熔化。 在原料熔化后，通过反应，残留在原料中的氧或金属杂质与清除剂反应。 当碱金属或碱土金属与清除剂气体中的卤化物反应时，实现了所需的化学计量。 降低熔体中杂质的量并使用所需的化学计量熔体，提高从纯化原料生长的所得锭的辐射硬度和透射性能。 此外，该方法可能减少排气所需的时间。 该方法还可用于形成高纯度预熔体，其又可用于生长具有较高纯度的锭。