수열합성법을 이용한 고체산화물 연료전지 접속자용 LaCrO₃ 나노분말의 제조방법
    21.
    发明公开
    수열합성법을 이용한 고체산화물 연료전지 접속자용 LaCrO₃ 나노분말의 제조방법 有权
    固体燃料电池中间层通过氢热法合成LaCrO_3纳米粉体

    公开(公告)号:KR1020130108225A

    公开(公告)日:2013-10-02

    申请号:KR1020130096170

    申请日:2013-08-13

    Inventor: 강민경 태원필

    CPC classification number: Y02P70/56 H01M8/12 H01M8/02

    Abstract: PURPOSE: A manufacturing method of LaCrO3 nanopowder easily controls the particle size and shape of single phase perovskite nanopowder by using a hydrothermal synthesis. CONSTITUTION: A manufacturing method of LaCrO3 nanopowder comprises a step of mixing lanthanium(III) acetate hydrate(La(CH3CO2)3 ·1.5H2O) and chromium(III) acetate hydroxide((CH3CO2)7Cr3(OH)2) with a La/Cr molar ratio of 0.7-1.7; a step of adding KOH as a precipitant; a step of stirring the mixture at 130 °C for 4 hours; and a step of manufacturing spherical or oval LACrO3 nanopowder with a particle size of 40-150 nm by the hydrothermal treatment of the mixture at 200-250 °C for 24 hours.

    Abstract translation: 目的:LaCrO3纳米粉体的制备方法通过水热合成法容易控制单相钙钛矿纳米粉体的粒径和形状。 构成:LaCrO 3纳米粉末的制造方法包括将镧(III)(III)乙酸酯水合物(La(CH 3 CO 2)3·1.5H 2 O)和乙酸氢铯(III)(III) Cr摩尔比为0.7-1.7; 加入KOH作为沉淀剂的步骤; 在130℃下搅拌混合物4小时的步骤; 以及通过在200-250℃下将混合物水热处理24小时来制造粒径为40-150nm的球形或椭圆形LACrO3纳米粉末的步骤。

    수열합성법을 이용한 고체산화물 연료전지 접속자용 LaCrO₃ 나노분말의 제조방법
    22.
    发明公开
    수열합성법을 이용한 고체산화물 연료전지 접속자용 LaCrO₃ 나노분말의 제조방법 有权
    固体燃料电池中间层通过氢热法合成LaCrO_3纳米粉体

    公开(公告)号:KR1020130051782A

    公开(公告)日:2013-05-21

    申请号:KR1020110117125

    申请日:2011-11-10

    Inventor: 강민경 태원필

    Abstract: PURPOSE: A manufacturing method of LaCrO3 nano powder for solid oxide fuel cell connector using hydrothermal synthesis method is provided to compose Perovskite-type LaCrO3 nanopowder without the second phase in various types in a low temperature. CONSTITUTION: A manufacturing method of LaCrOs nanopowder comprises the following steps. (i) The starting material La(NO3)2·6H2O and Cr(NO3)2·9H2O has 0.8-1.3 of mole ration of La / Cr. (ii) NaOH is added as precipitant. And (iii) LaCrO3 nanopowder of 100-300nm having sphere and oval form is manufactured by performing hydro-thermal treatment for 8-32 hours at 100-250°C. Another manufacturing method of LaCrO3 nanopowder comprises the following steps. (a) The starting material Lanthanium (III) acetate hydrate (La(CH3CO2)3 · xH2O) and Chromium (III) acetate hydroxide ((CH3CO2) 7Cr 3 (OH) 2) has 0.7-1.7 of mole ratio of La / Cr. (b) KOH as precipitant is added for four hours at 130°C. And (c) LaCrO3 nanopowder of 40-150nm having sphere and oval form is manufactured for performing 24 hours hydro-thermal treatment at 200-250°C.

    Abstract translation: 目的:提供一种使用水热合成方法的固体氧化物燃料电池连接器的LaCrO3纳米粉末的制造方法,在低温下组成不含第二相的钙钛矿型LaCrO3纳米粉末。 构成:LaCrO纳米粉末的制造方法包括以下步骤。 (i)起始原料La(NO 3)2·6H 2 O和Cr(NO 3)2·9H 2 O具有0.8-1.3摩尔比的La / Cr。 (ii)加入NaOH作为沉淀剂。 和(iii)具有球形和椭圆形的100-300nm的LaCrO 3纳米粉末通过在100-250℃下进行8〜32小时的热处理而制造。 LaCrO3纳米粉末的另一种制造方法包括以下步骤。 (a)起始原料乙酸镧水合物(La(CH3CO2)3·xH2O)和乙酸氢铯铬酸盐((CH3CO2)7Cr3(OH)2)的摩尔比为0.7-1.7摩尔比的La / Cr 。 (b)在130℃下加入KOH作为沉淀剂4小时。 和(c)制造具有球形和椭圆形的40-150nm的LaCrO 3纳米粉末用于在200-250℃进行24小时水热处理。

    초음파 분무열분해법에 의한 이종원소가 도핑된 산화아연분말의 합성법
    23.
    发明授权
    초음파 분무열분해법에 의한 이종원소가 도핑된 산화아연분말의 합성법 有权
    通过超声喷雾热解法合成导电氧化锌

    公开(公告)号:KR101143859B1

    公开(公告)日:2012-05-23

    申请号:KR1020090134173

    申请日:2009-12-30

    Abstract: PURPOSE: A method for synthesizing zinc oxide powder is provided to improve the material characteristic of zinc oxide by using heterogeneous metal elements as dopants and reducing the specific resistance. CONSTITUTION: A method for synthesizing zinc oxide includes the following: Zinc nitratae or zinc acetate is prepared as a starting material. A dopant solution is added to the starting material to obtain a precursor solution. Zinc oxide power is generated in a spraying pyrolysis reaction furnace using the precursor solution. The temperature of the spraying pyrolysis reaction furnace is between 900 and 1000 degrees Celsius. The dopants are two or more selected from lithium nitrate, sodium nitrate, and potassium nitrate. The dopants are two or more selected from sodium borohydride, aluminum nitrate, gallium nitrate, and indium nitrate.

    저온 소성용 무연 압전세라믹 조성물 및 제조방법
    24.
    发明公开
    저온 소성용 무연 압전세라믹 조성물 및 제조방법 有权
    无铅压电陶瓷低温焙烧的组成和制造方法

    公开(公告)号:KR1020110043339A

    公开(公告)日:2011-04-27

    申请号:KR1020090100409

    申请日:2009-10-21

    CPC classification number: H01L41/1875 C04B35/45 H01L41/1873 H01L41/43

    Abstract: PURPOSE: A lead free piezoelectric ceramic composition for low temperature firing and a manufacturing method thereof are provided to reduce the sintering temperature of NKN-LS lead free ceramic by adding metal and metal oxide. CONSTITUTION: A lead free piezoelectric ceramic composition is comprised of NKN-LS(K0.52Na0.48)0.95Li0.05(Nb0.95Sb0.05)O3. A chemical formula is (K0.52Na0.48) 0.95Li 0.05 (Nb0.95Sb0.05)O + x mol% y and satisfies 0

    Abstract translation: 目的:提供一种用于低温烧制的无铅压电陶瓷组合物及其制造方法,通过添加金属和金属氧化物来降低NKN-LS无铅陶瓷的烧结温度。 构成:无铅压电陶瓷组合物由NKN-LS(K0.52Na0.48)0.95Li0.05(Nb0.95Sb0.05)O3组成。 化学式为(K0.52Na0.48)0.95Li 0.05(Nb0.95Sb0.05)O + xmol%y,满足0

    초음파 진동자용 무연 압전세라믹스 조성물
    25.
    发明公开
    초음파 진동자용 무연 압전세라믹스 조성물 失效
    用于超声波振动器的无铅压电陶瓷的组成

    公开(公告)号:KR1020100033002A

    公开(公告)日:2010-03-29

    申请号:KR1020080091947

    申请日:2008-09-19

    Abstract: PURPOSE: A free-lead piezoelectric ceramic composition for an ultrasonic oscillator is provided to enhance sintering property and to form the free-lead piezoelectric ceramic composition at a low sintering temperature. CONSTITUTION: A free-lead piezoelectric ceramic composition for an ultrasonic oscillator is composed of (Na0.5K0.5)NbO3. An additive which is added to the composition contains 0.1 ~ 3 mol% of metal oxide selected from Fe2O or NiO and 0.1 ~ 3 mol% of metal oxide selected from MnCO3 or CuO. A sintering temperature of the free-lead piezoelectric ceramic composition which is composed of (Na0.5K0.5)NbO3 is 1000 ~ 1075°C.

    Abstract translation: 目的:提供一种用于超声波振荡器的自由铅压电陶瓷组合物,以提高烧结性能,并在低烧结温度下形成自由铅压电陶瓷组合物。 构成:用于超声波振荡器的自由铅压电陶瓷组合物由(Na0.5K0.5)NbO3组成。 添加到组合物中的添加剂含有选自Fe 2 O或NiO的0.1〜3mol%的金属氧化物和选自MnCO 3或CuO的0.1〜3mol%的金属氧化物。 由(Na0.5K0.5)NbO3组成的自由铅压电陶瓷组合物的烧结温度为1000〜1075℃。

    수열합성법에 의한 나노 산화아연 분말의 제조방법
    26.
    发明公开
    수열합성법에 의한 나노 산화아연 분말의 제조방법 有权
    通过水热法制备纳米氧化锌粉末的方法

    公开(公告)号:KR1020100016887A

    公开(公告)日:2010-02-16

    申请号:KR1020080076534

    申请日:2008-08-05

    CPC classification number: C01G9/02 B82Y30/00 B82Y40/00 C01P2004/64

    Abstract: PURPOSE: A method for manufacturing nano zinc oxide powder is provided to synthesize various types of nano-size zinc oxide powder by varying a starting material and precipitant. CONSTITUTION: A method for manufacturing 100-200nm nano zinc oxide powder of a plate and needle shape comprises a step of performing hydrothermal treatment of Zn(NO3)2·6H2O as a starting material and NaOH as a precipitant using cyclohexylamine as a reaction controller at 200-250°C for 2-10 hours. A method for manufacturing spherical nano zinc oxide powder of 50 nm or less comprises the steps of: performing hydrothermal treatment of Zn(CH3COO)2·2H2O as a starting material and urea as a precipitant at 120-220°C for 5-12 hours; and heat treating them at 250-300°C for 12 hours.

    Abstract translation: 目的:提供一种制备纳米氧化锌粉末的方法,通过改变起始原料和沉淀剂来合成各种类型的纳米尺寸氧化锌粉末。 构成:制造板状和针状的100-200nm纳米氧化锌粉末的方法包括以环己胺作为反应控制器进行水热处理Zn(NO 3)2·6H 2 O作为起始原料和NaOH作为沉淀剂的步骤 200-250℃2-10小时。 制造50nm以下的球形纳米氧化锌粉末的方法包括以下步骤:以Zn(CH 3 COO)2·2H 2 O作为原料进行水热处理,在120-220℃下进行5〜12小时的作为沉淀剂的尿素 ; 并在250-300℃下热处理12小时。

    수열처리법을 이용한 보론나이트라이드 입자성장방법
    28.
    发明公开
    수열처리법을 이용한 보론나이트라이드 입자성장방법 审中-实审
    利用水热处理的氮化硼晶粒生长方法

    公开(公告)号:KR1020170083717A

    公开(公告)日:2017-07-19

    申请号:KR1020160002936

    申请日:2016-01-09

    Abstract: 본발명은수열처리법을이용한보론나이트라이드(BN: Boron Nitride) 입자를성장시키는방법에관한것으로, 질소(N2)가스를반응기에주입하여질소(N2)분위기하에수열처리하는방법과질화붕소입자의충분한성장을위해수열처리시간을변수로하여보론나이트라이드입자성장을시키는방법에관한것이다. 본발명은보론나이트라이드입자성장으로고내열/방열성/절연성이요구되는전기전자부품소재로주목받고있는보론나이트라이드의생산비용을절감하는효과를제공한다.

    Abstract translation: 本发明氮化硼使用序列处理方法:本发明涉及生长(BN氮化硼)颗粒的方法,用于注入氮气(N 2)的气体的反应器可以是在氮(N 2)气氛和氮化硼颗粒的热处理的方法, 本发明涉及一种方法和一种水热处理时间为足够的生长,以三氟化硼夜晚的晶粒生长的变量。 本发明提供减少了氮化硼硝基受到关注电气和电子组件和材料,其高熔点/热辐射/绝缘氮化硼晶粒生长要求的生产成本的效果。

    반응공정개선 및 컬러화를 위한 개질유황바인더 제조방법

    公开(公告)号:KR101721307B1

    公开(公告)日:2017-03-31

    申请号:KR1020150013185

    申请日:2015-01-28

    Abstract: 콘크리트의주원료인시멘트는 1t 생산에약 0.9t의이산화탄소를배출해지구온난화를야기하는오염원중 하나로지적되고있는데, 포틀랜드시멘트를사용하는일반적인칼라콘크리트를칼라개질유황바인더기반의소재로대체할경우 CO저감효과를나타내저탄소. 녹색성장구현이가능하며공업적폐기물, 부산물을활용하는측면에서경제적이다. 그리고현재개질유황바인더를제조할때 140℃이상의고온에서합성을하므로공정상에열에너지의소모가심하다. 이를반응촉진제를첨가하여공정시간을단축시킴으로써원가절감을도모하고자한다. 또한, 칼라유황바인더를제조하여다양한친환경녹색건축자재로활용함과동시에강도를향상시키고수축에의한 crack 발생을완화시켜외관불량및 강도저하발생을줄여개질유황바인더콘크리트구조물의내구성을높이기위한것이다. 발명의바람직한실시예에따르면개질유황바인더합성시 안료첨가하는방법과개질유황바인더로블록제조시 안료를첨가해칼라개질유황바인더블록을제조하는방법이제공된다.

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