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    METHOD FOR PREPARING ALUMINUM NITRIDE
    1.
    发明申请
    METHOD FOR PREPARING ALUMINUM NITRIDE 审中-公开

    公开(公告)号：US20180148335A1

    公开(公告)日：2018-05-31

    申请号：US15429340

    申请日：2017-02-10

    申请人： National Tsing Hua University

    发明人： Swe-Kai CHEN

    IPC分类号： C01B21/072

    CPC分类号： C01B21/0722

    摘要： A method for producing aluminum nitride is to disclose, which includes injecting a nitrogen-containing gas and a pure aluminum material into a high-temperature jet mill. In the high-temperature jet mill, the injected pure aluminum material reacts with the nitrogen and forms aluminum nitride on the surface. The aluminum nitride is continuously to pulverize in the high-temperature jet mill to form fine aluminum nitride powder. According to the present disclosure, unnecessary cost and complicated processes in elevated-temperature agglomeration is to avoid.

    Apparatus for making crystalline composition
    6.
    发明授权
    Apparatus for making crystalline composition 有权
    用于制造结晶组合物的装置

    公开(公告)号：US07942970B2

    公开(公告)日：2011-05-17

    申请号：US11313442

    申请日：2005-12-20

    申请人： Dong-Sil Park ,  Mark Philip D'Evelyn ,  Myles Standish Peterson, II ,  John Thomas Leman ,  Joell Randolph Hibshman, II ,  Fred Sharifi

    发明人： Dong-Sil Park ,  Mark Philip D'Evelyn ,  Myles Standish Peterson, II ,  John Thomas Leman ,  Joell Randolph Hibshman, II ,  Fred Sharifi

    IPC分类号： C30B11/00 ,  C23C16/00

    CPC分类号： C01B21/0632 ,  C01B21/0602 ,  C01B21/0722 ,  C01P2004/03 ,  C01P2006/80 ,  Y10T117/10

    摘要： A composition including a polycrystalline metal nitride having a number of grains is provided. These grains have a columnar structure with one or more properties such as, an average grain size, a tilt angle, an impurity content, a porosity, a density, and an atomic fraction of the metal in the metal nitride. An apparatus for preparing a metal nitride is provided. The apparatus may include a housing having an interior surface that defines a chamber and an energy source to supply energy to the chamber. A first inlet may be provided to flow a nitrogen-containing gas into the chamber. Raw materials may be introduced into the chamber through a raw material inlet. A second inlet may be provided to flow in a halide-containing gas in the chamber. The apparatus may further include a controller, which communicates with the various components of the apparatus such as, sensors, valves, and energy source, and may optimize and control the reaction.

    摘要翻译： 提供了包含多个晶粒的多晶金属氮化物的组合物。 这些晶粒具有在金属氮化物中具有金属的平均晶粒尺寸，倾斜角，杂质含量，孔隙率，密度和原子分数等一个或多个特性的柱状结构。 提供了一种用于制备金属氮化物的设备。 该装置可以包括具有限定腔室的内表面和用于向腔室供应能量的能量源的壳体。 可以提供第一入口以将含氮气体流入室中。 可以通过原料入口将原料引入室中。 可以提供第二入口以在室中的含卤化物气体中流动。 该装置还可以包括控制器，其与设备的各种部件（例如传感器，阀门和能量源）进行通信，并且可以优化和控制反应。

    Process for producing aluminum nitride and aluminum nitride
    8.
    发明申请
    Process for producing aluminum nitride and aluminum nitride 有权
    氮化铝和氮化铝的制造方法

    公开(公告)号：US20030099590A1

    公开(公告)日：2003-05-29

    申请号：US10289367

    申请日：2002-11-07

    申请人： IBARAGI LABORATORY CO., LTD.

    发明人： Hirohisa Miura ,  Hirofumi Matunaga ,  Tsutomu Tahara

    IPC分类号： C01B021/072

    CPC分类号： C01B21/0722 ,  C01P2002/60 ,  C01P2004/03 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/12 ,  C01P2006/80

    摘要： A process for producing aluminum nitride includes a step of holding an aluminum powder in a nitrogen atmosphere whose nitrogen gas pressure falls in a range of from 105 to 300 kPa, thereby developing a nitriding reaction at a temperature of from 500 to 1,000null C., wherein a reaction controller gas, controlling the development of the nitriding reaction, is supplied into a reactor chamber in which the aluminum powder is accommodated. In the production process, the reaction controller gas is included in the nitrogen atmosphere in the development of the nitriding reaction. Accordingly, the development of the nitriding reaction is controlled so that it is possible to develop the nitriding reaction at a lower temperature. As a result, it is possible to produce an aluminum nitride powder whose particle diameters are fine.

    摘要翻译： 一种氮化铝的制造方法，其特征在于，在氮气压力为105〜300kPa的氮气氛中保持铝粉末，在500〜1000℃的温度下进行氮化反应， 其中控制氮化反应发展的反应控制气体被供给到其中容纳有铝粉末的反应室中。 在生产过程中，氮化反应中产生的反应控制气体包括在氮气中。 因此，控制氮化反应的发展，使得可以在较低温度下进行氮化反应。 结果，可以生产粒径很细的氮化铝粉末。

    Method for production of aluminum nitride power
    9.
    发明授权
    Method for production of aluminum nitride power 有权
    生产氮化铝电源的方法

    公开(公告)号：US06423287B1

    公开(公告)日：2002-07-23

    申请号：US09199982

    申请日：1998-11-23

    申请人： Shyan-Lung Chung ,  Wen-Liang Yu

    发明人： Shyan-Lung Chung ,  Wen-Liang Yu

    IPC分类号： C01B21072

    CPC分类号： C01B21/0722

    摘要： This invention concerns a method for production of AlN powder. The reactants discovered in the invention are aluminum powder and a compound which contains NHx (e.g. NH2, NH3, NH4, N2H4, and N2H6 etc.) or halogens and which can be thermally decomposed or vaporized below the melting point of Al (660° C.). These two reactants are mixed at an appropriate ratio and then pressed into a compact with an appropriate shape. These two reactants, after being mixed at an appropriate ratio, may also be placed in a refractory container which has an opening at one end or has porous walls. In preparing the reactant compact or the reactant mixture, a dilutant such as AlN powder may also be added and mixed with the two reactants. This reactant compact or reactant mixture is then placed in a reaction chamber which is filled with nitrogen. By heating the reactant compact or the reactant mixture, the combustion synthesis reaction is ignited and AlN powder is produced. The compound decompress or vaporizes during being heated, thus creating numerous pores in the reactant compact or the reactant mixture. The nitrogen thus flows easily into the reactant compact(or the mixture) to react with Al. Besides, the halogen can catalyze the nitridation of Al and the NHx may attack easily the Al, thus promoting the reaction. AlN powder with high purity can therefore be produced under low nitrogen pressures (0.9-10 atm).

    摘要翻译： 本发明涉及一种生产AlN粉末的方法。 在本发明中发现的反应物是铝粉末和含有NH x（例如NH 2，NH 3，NH 4，N 2 H 4和N 2 H 6等）或卤素的化合物，其可以在Al的熔点（660℃）下热分解或汽化 。）。 将这两种反应物以适当的比例混合，然后压制成具有合适形状的压块。 这两种反应物在以适当的比例混合后也可以放置在一端具有开口或具有多孔壁的耐火容器中。 在制备反应物压块或反应物混合物时，还可以加入稀释剂如AlN粉末并与两种反应物混合。 然后将该反应物压块或反应物混合物置于填充有氮气的反应室中。 通过加热反应物压块或反应物混合物，燃烧合成反应被点燃并产生AlN粉末。 化合物在加热期间减压或蒸发，从而在反应物压块或反应物混合物中产生许多孔。 因此，氮气容易流入反应物压块（或混合物）中以与Al反应。 此外，卤素可以催化Al的氮化，NH x可能容易地侵蚀Al，从而促进反应。 因此，可以在低氮压（0.9-10atm）下生产高纯度的AlN粉末。

    Process for direct nitriding of metals of low melting point
    10.
    发明授权
    Process for direct nitriding of metals of low melting point 失效
    直接氮化低熔点金属的工艺

    公开(公告)号：US5314675A

    公开(公告)日：1994-05-24

    申请号：US816235

    申请日：1992-01-03

    申请人： Dominique Dubots ,  Pierre Faure

    发明人： Dominique Dubots ,  Pierre Faure

    IPC分类号： C23C8/24 ,  C01B21/068 ,  C01B21/072 ,  C01B21/082 ,  C04B35/58 ,  C04B35/581 ,  C04B35/591 ,  C04B35/65 ,  C04B35/56 ,  C01B21/06

    CPC分类号： C04B35/65 ,  C01B21/0682 ,  C01B21/0722 ,  C01B21/0828 ,  C04B35/58 ,  C04B35/581 ,  C04B35/591

    摘要： Process for direct nitriding of metals of relatively low melting point with the aid of a nitrogen-containing gas, in which a powder of at least one of the metals is mixed with a refractory powder, the mixture is heated under an atmosphere of nitrogen-containing gas at atmospheric pressure until the start of a rapid and exothermic nitriding reaction, and this reaction, which proceeds at a temperature generally higher than that of the melting point of the metals without apparent melting being observed, is allowed to proceed until all of the metals have been consumed, in order to obtain a highly porous solid mass which is easy to grind and is based on metal nitrides or metal oxynitrides.

    摘要翻译： 借助于含有至少一种金属的粉末与难熔粉末混合的含氮气体直接氮化相对低熔点的金属的方法，将混合物在含氮气氛下加热 在大气压下的气体直到开始快速和放热的氮化反应，并且该反应在通常高于未观察到熔融的金属的熔点的温度下进行，直到所有金属 已经被消耗，以获得易于研磨并且基于金属氮化物或金属氮氧化物的高度多孔的固体物质。