탄소직물로 이루어진 C/SiC 복합재료의 제조방법
    3.
    发明公开
    탄소직물로 이루어진 C/SiC 복합재료의 제조방법 有权
    生产包含碳纤维的C / SIC复合材料

    公开(公告)号:KR1020020066547A

    公开(公告)日:2002-08-19

    申请号:KR1020010006790

    申请日:2001-02-12

    IPC分类号: C04B35/56 C04B41/52 B32B18/00

    摘要: PURPOSE: A production method of C/SiC composite materials comprising carbon fibers is provided to decrease manufacturing time and costs greatly by one-shot process including carbonization, thermal treatment, impregnation and formation of oxidation resistant layer unlike conventional chemical vapor infiltration process. CONSTITUTION: The C/SiC composite materials with good heat resistance for missile nozzles, supersonic flight engines, high temperature valves, etc. are produced by the following steps of: (i) layering carbon/phenolic preforms and hardening, wherein the preform is one of various preforms prepared by press molding, filament winding, sewing, and involute method; (ii) carbonizing phenolic resin, and heating to 2300deg.C or lower; (iii) impregnating with liquid metal silicon and sintering between 1400 and 1800deg.C, and optionally coating the sintered sample with BN mixture comprising 70-80% of BN, 10-20% of acetone, and 0-10% of water; (iv) heating to 2000-2700deg.C to form an oxidation resistant layer on the surface of preform caused by vaporization of Si-contained compound. Also, the C/SiC composite materials are produced by performing carbonization, thermal treatment and super-high temperature thermal treatment at the same time, and excluding step (iv). The hardened sample from step (i) is processed by making holes with 0.5-1.5mm diameter at 5-20mm intervals, where the holes are used to discharge decomposed gas from the step (ii).

    摘要翻译: 目的:提供一种包含碳纤维的C / SiC复合材料的生产方法,通过与常规化学气相渗透方法不同的碳化,热处理,浸渍和抗氧化层的形成,通过一步法大大减少制造时间和成本。 构成:通过以下步骤制备导弹喷嘴,超音速飞行发动机,高温阀等具有良好耐热性的C / SiC复合材料:(i)分层碳/酚醛预成型件和硬化,其中预制件为一 通过压模,丝缠绕,缝合和渐开线方法制备的各种预成型件; (ii)碳化酚醛树脂,加热至2300℃以下; (iii)用液态金属硅浸渍并烧结在1400至1800℃之间,并且任选地用包含70-80%BN,10-20%丙酮和0-10%水的BN混合物涂覆烧结样品; (iv)加热至2000-2700℃,以由含Si化合物蒸发而在预成型体表面形成抗氧化层。 此外,C / SiC复合材料通过同时进行碳化,热处理和超高温热处理而制造,并且不包括步骤(iv)。 步骤(i)的硬化样品通过以5-20mm的间隔制造具有0.5-1.5mm直径的孔,其中用于从步骤(ii)排出分解气体。

    그래파이트 제품, 웨이퍼 처리 조립체 및 그래파이트부품의 사용 수명 연장 방법
    5.
    发明公开

    公开(公告)号:KR1020070118203A

    公开(公告)日:2007-12-14

    申请号:KR1020060120215

    申请日:2006-11-30

    IPC分类号: H01L21/687

    摘要: A graphite product is provided to improve the strength of a connection post of a heater without damaging the inherent characteristic of graphite like an excellent electrical conductivity and thermal impact resistance by including at least one protection coating layer having at least one of nitride, carbide, carbonitride or oxynitride of an element selected from a group of B, Al, Si, Ca, refractory hard metal, transition metal and a composition thereof. A graphite product includes a graphite core, a coating layer, a protection coating layer. The coating layer includes pyrolytic graphite having an average thickness of 0.001-0.10 inches. The protection coating layer is disposed on at least part of the pyrolytic graphite coating layer. The protection coating layer includes at least one of nitride, carbide, carbonitride or oxynitride of an element selected from a group of B, Al, Si, Ga, refractory hard metal, transition metal and a composition thereof. The graphite product has tensile strength of at least 25 or 50 percent higher than that of a corresponding graphite product without the pyrolytic graphite coating layer and the protection coating layer. The pyrolytic graphite coating layer can have a thickness of 0.005-0.05 inches.

    摘要翻译: 提供石墨产品以通过包括至少一个具有氮化物,碳化物,碳氮化物中的至少一种的保护涂层来提高加热器的连接柱的强度而不损害石墨的固有特性,如出色的导电性和耐热冲击性 或选自B,Al,Si,Ca,难熔硬金属,过渡金属及其组成的元素的氮氧化物。 石墨制品包括石墨芯,涂层,保护涂层。 涂层包括平均厚度为0.001-0.10英寸的热解石墨。 保护涂层设置在热解石墨涂层的至少一部分上。 保护涂层包括选自B,Al,Si,Ga,难熔硬金属,过渡金属及其组成的元素的氮化物,碳化物,碳氮化物或氮氧化物中的至少一种。 石墨产品的拉伸强度比没有热解石墨涂层和保护涂层的相应的石墨产品的拉伸强度高至少25或50%。 热解石墨涂层的厚度可以为0.005-0.05英寸。

    불연성 단열재 조성물, 이를 이용한 단열재 및 그 제조방법
    6.
    发明公开
    불연성 단열재 조성물, 이를 이용한 단열재 및 그 제조방법 失效
    用于自身材料的非易燃组合物,使用它的自由基材料和自由材料的制备方法

    公开(公告)号:KR1020050033352A

    公开(公告)日:2005-04-12

    申请号:KR1020030069347

    申请日:2003-10-06

    申请人: 노병대 김신종

    发明人: 노병대 김신종

    IPC分类号: C04B22/08

    摘要: Provided are a non-inflammable composition, a heat insulation material containing the composition and a process for producing the insulation material to ensure eco-friendship and high sound-absorption, dustproof and waterproof abilities of the insulation material. The non-inflammable composition comprises 30-40 wt.% of sodium metasilicate(Na2OSiO2.XH2O), 40-50 wt.% of alumina cement(Al2O3.XH2O.YCaO), 3-8 wt.% of metaphosphate(HPO3), 1-5 wt.% of NaHCO3 and 12-15 wt.% of water. The non-inflammable composition is formed into a foaming material by mixing all of components for the composition(S1) and introducing the mixture in a reactor then applying microwave to the reactor to form a foamed body(S2). The first step(S1) comprises mixing 40-50 wt.% of Al2O3.xH2O.yCaO and 1-5 wt.% of NaHCO3; mixing 30-40 wt.% of Na2OSiO2.xH2O and 3-8 wt.% of HPO3; then blending the first and second mixture with 12-15 wt.% of water.

    摘要翻译: 提供了一种不易燃组合物,含有该组合物的隔热材料和一种用于生产绝缘材料的方法,以确保绝缘材料的环保性和高吸音性,防尘性和防水性。 非易燃组合物包含30-40重量%的偏硅酸钠(Na 2 OSi 2·XH 2 O),40-50重量%的氧化铝水泥(Al 2 O 3·.H 2 O·YCaO),3-8重量%的偏磷酸盐(HPO 3) 1-5重量%的NaHCO 3和12-15重量%的水。 通过混合组合物(S1)的所有组分并将混合物引入反应器中,然后对反应器进行微波以形成发泡体(S2),将不燃性组合物形成发泡材料。 第一步骤(S1)包括混合40-50重量%的Al 2 O 3·.H 2 O·100CaO和1-5重量%的NaHCO 3; 混合30-40重量%的Na 2 OSiO 2·xH 2 O和3-8重量%的HPO 3; 然后将第一和第二混合物与12-15重量%的水混合。

    탄소재의 내산화 처리방법
    7.
    发明授权
    탄소재의 내산화 처리방법 失效
    碳材料的氧化处理方法

    公开(公告)号:KR1019950011098B1

    公开(公告)日:1995-09-28

    申请号:KR1019930004892

    申请日:1993-03-27

    IPC分类号: C04B41/50

    摘要: The anti-oxidation treating method of a carbon material i.e. graphite, carbonaceous material or carbon composite material is characterized by ultrasonic cleaning, phosphoric acid cleaning and alcohol or acetone cleaning the carbon material, coating the surface of the carbon material with an anti-oxidation treating agent composed of 10-40% amorphous boron, 1-10% boron nitride, 1-5% silicon nitride, 3-10% Mn(H2PO4)2 2H2O, 30-60% orthophosphoric acid(H3PO4), 1-10% potassium hydroxide, 2-15% ammonia water and 1-7% silica sol, drying the coated carbon material at 200 deg.C. or more, and heat-treating it in the inert atmosphere at 500-600 deg.C. for 2-5 hr.

    摘要翻译: 碳材料(即石墨,含碳材料或碳复合材料)的抗氧化处理方法的特征在于超声波清洗,磷酸清洗和醇或丙酮清洗碳材料,用抗氧化处理涂覆碳材料表面 由10-40%无定形硼,1-10%氮化硼,1-5%氮化硅,3-10%Mn(H 2 PO 4)2·2H 2 O,30-60%正磷酸(H 3 PO 4),1-10% 氢氧化物,2-15%氨水和1-7%硅溶胶,在200℃干燥涂覆的碳材料。 以上,在500〜600℃的惰性气氛中进行热处理。 持续2-5小时。