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    • 83. 发明申请
    • Method for Growing Sapphire Crystal
    • 生长蓝宝石水晶的方法
    • US20170058429A1
    • 2017-03-02
    • US14841744
    • 2015-09-01
    • Yu-Feng ChuangYing-Jen Chuang
    • Yu-Feng Chuang
    • C30B29/20C30B11/02
    • C30B29/20C30B11/00
    • A method includes grinding alumina powder into alumina particles with ultrafine particle powder, performing a purification process so that the alumina particles have a purity greater than 99.999%, processing the alumina particles by a spray dryer, processing the alumina particles by a sheet molding compound to produce an alumina material, and placing the alumina material in a vacuum super high temperature furnace to have a crystal growth which includes placing the alumina material in a predetermined crucible in the vacuum super high temperature furnace, preburning the alumina material to form a half-baked alumina cake, heating and increasing a temperature of the alumina cake so that the alumina cake is disposed at a melted state until the crystal growth is finished, and curing the alumina cake that is melted so as to form a sapphire crystal.
    • 一种方法包括用超细颗粒粉末将氧化铝粉末研磨成氧化铝颗粒,进行纯化处理,使得氧化铝颗粒的纯度大于99.999%,通过喷雾干燥器处理氧化铝颗粒,通过片状模塑料将氧化铝颗粒加工成 生产氧化铝材料,并将氧化铝材料放置在真空超高温炉中以具有晶体生长,其包括将氧化铝材料放置在真空超高温炉中的预定坩埚中,预先煅烧氧化铝材料以形成半烘 氧化铝滤饼,加热并提高氧化铝滤饼的温度,使得氧化铝滤饼处于熔融状态直到晶体生长结束,并固化熔化的氧化铝滤饼以形成蓝宝石晶体。
    • 87. 发明申请
    • GARNET SINGLE CRYSTAL AND METHOD FOR PRODUCING THE SAME
    • GARNET单晶及其制造方法
    • US20160145765A1
    • 2016-05-26
    • US14787954
    • 2014-03-20
    • SUMITOMO METAL MINING CO., LTD
    • Masayoshi MATSUIKazuki TATSUMIYAFumiaki ISHIDA
    • C30B15/30G02F1/09G02F1/00C30B29/20
    • C30B15/30C30B15/20C30B29/20C30B29/28G02F1/0036G02F1/093
    • [Object] To provide a high-quality, transparent garnet single crystal with suppressed cell growth that would otherwise lead to partially inhomogeneous crystal composition, and a method for producing the garnet single crystal. [Solving means] The garnet single crystal is grown by bringing a seed crystal into contact with a raw-material melt in a crucible disposed inside a chamber and pulling, while rotating, the seed crystal. The garnet single crystal is characterized by being represented by a general formula: (Tb3-xScx) (Sc2-yAly)Al3O12-z (provided that 0.11≦x≦0.14, and 0.17≦y≦0.23). The garnet single crystal is grown as follows. First, a mixture powder containing 20.9 to 21.2% by mole terbium oxide, 32.7 to 33.3% by mole scandium oxide, and the balance of aluminium oxide and unavoidable impurities is filled into the crucible and melted. Then, while a nitrogen gas is supplied into the chamber, the number of rotations of the seed crystal is set to 5 to 20 rpm, and the rate of pulling the seed crystal is set to 0.3 to 0.8 mm/h for the growth.
    • 提供具有抑制的细胞生长的高品质,透明的石榴石单晶,否则会导致部分不均匀的晶体组成,以及生产石榴石单晶的方法。 [解决方案]石榴石单晶通过使晶种与设置在室内的坩埚中的原料熔融物接触并在旋转晶片的同时拉动而生长。 石榴石单晶的特征在​​于以下通式表示:(Tb 3-x Sc x)(Sc 2-y Al y)Al 3 O 12-z(条件是0.11≦̸ x≦̸ 0.14和0.17& nlE; y≦̸ 0.23)。 石榴石单晶生长如下。 首先,将含有20.9〜21.2摩尔铽氧化物,32.7〜33.3摩尔钪氧化物,余量的氧化铝和不可避免的杂质的混合粉末填充到坩埚中并熔融。 然后,在向室内供给氮气的同时,将晶种的旋转数设定为5〜20rpm,将晶种的拉拔速度设定为0.3〜0.8mm / h。