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    • 5. 发明授权
    • Highly dense and non-grained spinel NTC thermistor thick film and method for preparing the same
    • 高密度和无粒度尖晶石NTC热敏电阻厚膜及其制备方法
    • US08183973B2
    • 2012-05-22
    • US12759278
    • 2010-04-13
    • Jungho RyuDong-Soo Park
    • Jungho RyuDong-Soo Park
    • H01C7/10
    • H01C7/043H01C17/06533Y10T29/49082Y10T29/49085
    • Disclosed herein are a highly dense and nano-grained NTC thermistor thick film and a method for preparing the same, and specifically, an NTC thermistor thick film vacuum deposited by spraying a spinel grained ceramic powder containing Ni and Mn on one side of the surface of a substrate using a room temperature powder spray in vacuum (AD) and a method for preparing the same. According to the present invention, a room temperature powder spray in vacuum (AD) may be used to perform a rapid deposition of NTC thermistor thick films and prepare a highly dense ceramic thick film, the NTC characteristic constant B which would be obtained by doping may be maximized without doping, demagnetization may be obtained without any additional heat treatment, and thus limitations on substrate that the conventional art has may be completely overcome.
    • 本发明公开了一种高密度和纳米级NTC热敏电阻厚膜及其制备方法,具体地,通过将​​含有Ni和Mn的尖晶石颗粒陶瓷粉末喷涂在表面的一侧上的NTC热敏电阻厚膜真空沉积 在真空(AD)中使用室温粉末喷雾的基材及其制备方法。 根据本发明,可以使用真空(AD)中的室温粉末喷雾来进行NTC热敏电阻厚膜的快速沉积并制备高致密陶瓷厚膜,通过掺杂获得的NTC特性常数B可以 在没有掺杂的情况下最大化,可以在没有任何额外的热处理的情况下获得退磁,因此可以完全克服传统技术的基板的限制。
    • 7. 发明授权
    • Method of unidirectionally aligning whiskers during tape casting
    • 在铸造过程中单方向调整晶须的方法
    • US5993715A
    • 1999-11-30
    • US868838
    • 1997-06-09
    • Dong-Soo Park
    • Dong-Soo Park
    • B28B1/52C04B35/593C04B35/622C04B35/80B28B1/14C04B35/81
    • B28B1/52C04B35/5935C04B35/62218C04B35/806
    • A method of unidirectionally aligning the whiskers during tape casting and a sintered silicon nitride laminate of controlled properties and microstructure through alignment of the reinforcing grains fabricated by using the method are disclosed. The whiskers are unidirectionally oriented by placing a row of guides 0.2-0.5 mm apart from each other at exit of the reservoir of the slip containing the whiskers during tape casting. The silicon nitride comprising 10-30 volume % of elongated large grains growing from the .beta.-Si.sub.3 N.sub.4 whiskers and oriented unidirectionally in the fine grained matrix is fully densified by gas pressure sintering at 1900.degree. C. It exhibits a fracture toughness value as high as 9.24 Mpa m normal to the whisker alignment according to the Evans-Charles' method disclosed in the Journal of the American Ceramic Society, 59 [7-8], 371-372 (1976).
    • 公开了一种通过使用该方法制造的增强晶粒的对准来控制带铸期间的晶须和控制性能和微结构的烧结氮化硅层压体的方法。 在晶圆铸造期间,通过在包含晶须的滑块的储存器的出口处彼此排列一排彼此相距0.2-0.5mm的导向器将晶须单向取向。 包含10-30体积%的从β-SiN3N4晶须生长并在细粒基体中单向取向的细长大晶粒的氮化硅通过在1900℃下的气体压力烧结而完全致密化。其断裂韧性值高达9.24 根据“美国陶瓷学会杂志”59 [7-8],371-372(1976)中公开的Evans-Charles'方法,晶须对准中的Mpa + E,rad m + EE。
    • 8. 发明申请
    • PREPARATION METHOD OF HYDROXYAPATITE COATING LAYER USING AEROSOL DEPOSITION AND HYDROTHERMAL TREATMENT, AND NANOSTRUCTURED HYDROXYAPATITE COATING LAYER PREPARED BY THE METHOD
    • 使用气溶胶沉积和热处理的羟基磷酸酯涂层的制备方法和由该方法制备的纳米结构的羟基封端层
    • US20110281127A1
    • 2011-11-17
    • US12871434
    • 2010-08-30
    • Byung-Dong HAHNDong-Soo Park
    • Byung-Dong HAHNDong-Soo Park
    • B32B15/04A61L27/32
    • A61L27/06A61L27/32A61L2420/02
    • A method of preparing a nano-structured hydroxyapatite [Ca10(PO4)6(OH)2, HA] coating layer with improved biocompatibility is provided. The preparation method includes: (S1) putting hydroxyapatite [Ca10(PO4)6(OH)2, HA] powder in a powder chamber, placing a metal substrate in a deposition chamber, and keeping the chamber in vacuum state by using a vacuum pump; (S2) injecting carrier gas into the powder chamber and mixing with hydroxyapatite powder; (S3) spraying the mixture of the powder and the carrier gas onto the surface of metal substrate in the deposition chamber through a nozzle and depositing hydroxyapatite coating layer on the metal substrate; (S4) hydrothermal-treating the deposited hydroxyapatite coating layer; and (S5) rinsing the hydrothermal-treated hydroxyapatite coating layer and drying the layer. Additionally, a thermal-treated, nano-structured hydroxyapatite [Ca10(PO4)6(OH)2, HA] coating layer with improved biocompatibility fabricated by the above preparation method is provided.
    • 提供了一种制备具有改善的生物相容性的纳米结构羟基磷灰石[Ca10(PO4)6(OH)2,HA]涂层的方法。 制备方法包括:(S1)将羟基磷灰石[Ca10(PO4)6(OH)2,HA]粉末置于粉末室中,将金属基材置于沉积室中,并通过使用真空泵将室保持在真空状态 ; (S2)将载气注入粉末室并与羟基磷灰石粉混合; (S3)通过喷嘴将粉末和载气的混合物喷射到沉积室中的金属基材的表面上,并将羟基磷灰石涂层沉积在金属基材上; (S4)对沉积的羟基磷灰石涂层进行水热处理; 和(S5)冲洗水热处理的羟基磷灰石涂层并干燥该层。 另外,提供了通过上述制备方法制造的具有改善的生物相容性的热处理的纳米结构的羟基磷灰石[Ca10(PO4)6(OH)2,HA]涂层。