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    • 31. 发明公开
    • 진공개폐기용 구리-크롬계 접점 소재 제조 방법
    • 真空开关铜铜接触材料及其制造方法
    • KR1020020044888A
    • 2002-06-19
    • KR1020000074135
    • 2000-12-07
    • 한국과학기술연구원
    • 도정만박종구홍경태김미진
    • H01H1/02
    • PURPOSE: A copper-chromium contact material for a vacuum switch and a manufacturing method thereof are provided to manufacture a wholesome Cu-Cr contact material by including a uniform and dispersed sintering structure of Cr particle in Cu matrix. CONSTITUTION: A mixing powder of a copper(Cu) powder and a chromium(Cr) powder is put and pressurized in a mold to manufacture a molding material. A content of the chromium(Cr) ranges 25-75 weight %. The molding material is sintered to a solid status at a temperature lower than a melting point of the copper to obtain a solid-phase sintered body. The temperature lower than a melting point of the copper ranges 900-1075°C. The solid-phase sintered body is heated to a temperature higher than the melting point of the copper to perform a liquid-phase sintering operation. The temperature higher than a melting point of the copper ranges 1100-1250°C.
    • 目的:提供一种用于真空开关的铜 - 铬接触材料及其制造方法,通过在Cu基体中包含均匀分散的Cr颗粒的烧结结构来制造有益的Cu-Cr接触材料。 构成:将铜(Cu)粉末和铬(Cr)粉末的混合粉末在模具中加压并制造成型材料。 铬(Cr)的含量范围为25-75重量%。 将模塑材料在低于铜的熔点的温度下烧结成固体状态以获得固相烧结体。 低于铜熔点的温度范围为900-1075℃。 将固相烧结体加热到比铜的熔点高的温度,进行液相烧结操作。 高于铜熔点的温度范围为1100-1250℃。
    • 33. 发明授权
    • WSi₂―SiC 나노 복합 피복층 및 그 제조방법
    • WSI2-SIC纳米复合涂料及其制备方法
    • KR100816671B1
    • 2008-03-27
    • KR1020060131214
    • 2006-12-20
    • 한국과학기술연구원
    • 윤진국김긍호홍경태도정만이경환손근형지영수김한성이종권
    • C23C14/34C23C14/00B82Y30/00
    • A WSi2-SiC nanocomposite coating layer and a manufacturing method thereof are provided to improve anti-oxidation characteristic of the coating layer in the high temperature condition by preventing micro crack from being formed in the nanocomposite coating layer. A method for manufacturing a WSi2-SiC nanocomposite coating layer comprises steps of vapor-depositing tungsten and carbon on the surface of tungsten or tungsten alloy to form a W2C coating layer, and vapor-depositing silicon on the surface of the W2C coating layer to form the WSi2-(17-19.3) vol.% SiC nanocomposite coating layer. The carbon is subject to chemical deposition using one selected from the group consisting of CO, CH4, C2H4 and CH2I2, and simultaneously the tungsten is subject to chemical deposition using WF6, WCl6 or W(CO)6. The silicon is subject to chemical deposition using SiCl4, SiH2Cl2, SiH3Cl or SiH4.
    • 提供WSi2-SiC纳米复合涂层及其制造方法,以通过防止在纳米复合涂层中形成微裂纹来提高涂层在高温条件下的抗氧化性能。 制备WSi2-SiC纳米复合涂层的方法包括在钨或钨合金表面上气相沉积钨和碳以形成W2C涂层的步骤,并在W2C涂层的表面上气相沉积硅以形成 WSi2-(17-19.3)体积%SiC纳米复合材料涂层。 使用选自CO,CH4,C2H4和CH2I2的一种碳进行化学沉积,同时使用WF6,WCl6或W(CO)6进行化学沉积。 使用SiCl 4,SiH 2 Cl 2,SiH 3 Cl或SiH 4进行化学沉积。
    • 39. 发明公开
    • 열차폐 코팅재료 및 그 제조방법, 그리고 이 코팅재료를이용한 열차폐 코팅층의 형성방법
    • 热障涂层材料及其制造方法以及使用涂层材料形成热障涂层的方法
    • KR1020020010842A
    • 2002-02-06
    • KR1020000044355
    • 2000-07-31
    • 한국과학기술연구원
    • 박종구도정만김긍호
    • C09D5/18
    • C09D5/00C08K3/22C08K2003/221C08K2003/2227C08K2003/2244
    • PURPOSE: Provided is a thermal barrier coating material for a thermal barrier coating layer, which stabilizes the fine structure of the coating layer at high temperature and prevents the reduction of thermal barrier property, therefore, the lifetime of the coating layer is increased. CONSTITUTION: The thermal barrier coating material is produced by mixing zirconia(ZrO2)-based powder containing 5-15wt% of Y2O3 with 1-10wt% of Al2O3 powder uniformly and then molding the mixture powder and performing a cooling-hydrostatic pressure treatment. And the thermal barrier coating layer is formed by a process comprising the steps of: polishing and washing the surface of a ultra heat-resistant alloy; coating the surface of the alloy with a heat-resistant alloy comprising Ni, 22wt% of Cr, 10wt% of Al, 1wt% of Y by an electronic beam coating method; and coating the coating layer with the thermal barrier coating material by the electronic beam coating method.
    • 目的:提供一种用于隔热涂层的热障涂层材料,其在高温下稳定涂层的精细结构并防止热障性能的降低,因此涂层的寿命增加。 构成:通过将含有5-15重量%的Y 2 O 3的氧化锆(ZrO 2)基粉末和1-10重量%的Al 2 O 3粉末均匀混合,然后将该混合物粉末成型并进行冷却静水压处理来制备热障涂层材料。 并且通过包括以下步骤的方法形成隔热涂层:抛光和洗涤超耐热合金的表面; 用Ni,22重量%Cr,10重量%的Al,1重量%的Y通过电子束涂布法涂覆合金表面; 并通过电子束涂布法用热障涂层材料涂覆涂层。
    • 40. 发明授权
    • 새로운 구조의 열차폐 코팅 및 그의 제조방법
    • 热保护涂层和相同的方法
    • KR100270226B1
    • 2000-10-16
    • KR1019980011005
    • 1998-03-30
    • 한국과학기술연구원한국전력공사
    • 박종구김긍호도정만홍경태박원식정진성
    • C23C28/00
    • PURPOSE: A process for preparing a thermal barrier coating formed by two equiaxed crystals layers by coating of a porous Al-Ni-Cr-X metal alloy layer between a zirconia coating layer and MCrAlY layer and then oxidation treatment is provided, thereby producing a thermal barrier coating generating no changes in thickness and oxidation on a medium bonding layer after exposed in a high temperature oxidation atmosphere. CONSTITUTION: In a method for forming a thermal barrier coating for protecting parts exposed in a high temperature oxidation atmosphere from oxidation, a porous Al-Ni-Cr-X(X is Co, Y or Hf) metal alloy layer is coated between a zirconia coating layer and MCrAlY layer and heat treated in an atmosphere to form two equiaxed crystals layers, which are mixed with pure alumina equiaxed crystals layer and Al2O3-NiO-Ni(Cr,Al)2O4.
    • 目的:提供通过在氧化锆涂层和MCrAlY层之间涂覆多孔Al-Ni-Cr-X金属合金层然后进行氧化处理由两个等轴晶体层形成的热障涂层的制备方法,从而产生热 阻挡涂层在高温氧化气氛中暴露后不会在中等粘合层上产生厚度和氧化变化。 构成:在用于形成用于保护在高温氧化气氛中暴露的部分氧化的热障涂层的方法中,多孔Al-Ni-Cr-X(X是Co,Y或Hf)金属合金层涂覆在氧化锆 涂层和MCrAlY层,并在大气中热处理形成两个等轴晶体层,与纯氧化铝等轴晶体层和Al2O3-NiO-Ni(Cr,Al)2O4混合。