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公开(公告)号：KR1020010074336A
公开(公告)日：2001-08-04
申请号：KR1020000003353
申请日：2000-01-25
Applicant: 한국과학기술연구원
IPC: H01M8/14
CPC classification number: H01M8/0625 , H01M2008/147 , H01M2300/0051 , Y02E60/526
Abstract: PURPOSE: A direct interior-modified melt carbonate fuel cell is provided, which is provided with a carbonate blocking membrane to increase the lifetime and to improve the efficiency without the increase of internal resistance and the consumption of carbonate. CONSTITUTION: The melt carbonate fuel cell comprises a carbonate blocking membrane which is made of nickel or nickel-containing alloy and blocks the delivery of the hydroxide vapor converted from the carbonate vapor or the carbonates into a catalyst, between a fuel electrode and an interior-modified catalyst layer. Preferably the carbonate blocking membrane contains pores whose mean pore size is 0.01-10 micrometers, by the degree of 30-90 %, and has the thickness of 0.1-1 mm. The carbonate blocking membrane is prepared by coating nickel or nickel-containing alloy on the surface of porous inorganic carrier selected from the group consisting of Al2O3, SiO2, TiO2 and ZrO2.
Abstract translation: 目的：提供直接内部改性的熔融碳酸盐燃料电池，其具有碳酸盐阻挡膜以增加寿命并提高效率，而不增加内阻和碳酸盐的消耗。 构成：熔融碳酸盐燃料电池包括碳酸盐阻挡膜，其由含镍或含镍合金制成，并且阻断从碳酸盐蒸气或碳酸盐转化为催化剂的氢氧化物蒸汽在燃料电极和内部 - 改性催化剂层。 优选地，碳酸盐封闭膜含有平均孔径为0.01-10微米的孔，为30-90％，厚度为0.1-1mm。 通过在选自Al2O3，SiO2，TiO2和ZrO2的多孔无机载体的表面上涂覆含镍或含镍合金来制备碳酸盐封闭膜。
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公开(公告)号：KR100286425B1
公开(公告)日：2001-03-15
申请号：KR1019990002155
申请日：1999-01-23
Applicant: 한국과학기술연구원
IPC: H01M8/06
CPC classification number: Y02P70/56
Abstract: 1) 기공크기가 50Å∼400Å인다공성무기담체, 및 2) 상기다공성무기담체안에분산되어있는촉매활성물질로 이루어지는, 연료전지내에공급되는탄화수소및 알코올을수소로전환시키기위한용융탄산염연료전지용개질촉매로서, 상기촉매활성물질은주촉매물질인니켈과조촉매물질의조합으로이루어지고, 상기조촉매물질은 Pt, Pd, Ir, Ru 및 Rh로이루어지는 Pt계귀금속및 LaO, CeO, MgO, PrO, NdO, SmO및 GdO으로이루어지는란탄계산화물로이루어지는군으로부터선택된 1종이상의물질인연료전지용개질촉매, 및그의제조방법으로서상기촉매활성물질중주촉매물질인니켈의금속염수용액을다공성무기담체에함침및 건조시킨후, 이를산화침전제의용액에담그어니켈금속염을산화시킨후 건조시키므로써, 촉매전구체를제조하는단계, 제조된촉매전구체에조촉매물질로서 Pt계귀금속의금속염수용액또는란탄계산화물의금속염수용액또는이들금속염수용액의혼합물을함침및 건조시키는단계를포함하는용융탄산염연료전지용개질촉매의제조방법이개시되어있다. 본발명에따른촉매는금속니켈과담체와의강한결합으로인해니켈의소결속도가감소하며, 첨가된귀금속조촉매에의한니켈의환원도증가에의해수소선택도가증가하며, 첨가된란탄계조촉매로인해탄소생성이감소된다. 따라서, 본발명에따른촉매는탄산염증기또는수산화물증기와의접촉으로인한피독에대해큰 저항성을갖는다.
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公开(公告)号：KR1020000041679A
公开(公告)日：2000-07-15
申请号：KR1019980057633
申请日：1998-12-23
Applicant: 한국과학기술연구원 , 재단법인 포항산업과학연구원 , 주식회사 포스코
IPC: B22D11/10
CPC classification number: B22D11/122 , B22D11/0622 , B22D11/11
Abstract: PURPOSE: An apparatus for producing a mixing-agitation type reactive solid metal is provided to continuously produce a reactive solid metal having a high solid phase ratio in a stale state by performing an electronic and mechanic agitation. CONSTITUTION: Molten steel in an agitation chamber is moved up and down by an electronic agitator(100) and a hydraulic cylinder and is rotated by a servo motor(220). Further, the molten steel is agitated by a mechanic agitator(200) forming a spiral agitating projection on an outer surface. The mechanic agitator circulates a cooling medium by forming a cooling medium circulation passage inside, the cooling medium supports the mechanic agitator and supplies it to the cooling medium circulation passage through a sealing body(250). Thereby, a reactive solid metal having a high solid phase ratio of which a spherical non-resin solid phase particle is dispersed in a liquid phase metal.
Abstract translation: 目的：提供一种混合搅拌型反应性固体金属的制造装置，通过进行电子和机械搅拌，连续制造陈旧状态下的固相率高的反应性固体金属。 构成：电动搅拌器（100）和液压缸使搅拌室中的熔融钢水上下移动，并通过伺服马达（220）旋转。 此外，通过在外表面上形成螺旋状搅动突起的机械搅拌器（200）搅拌钢水。 机械搅拌器通过在内部形成冷却介质循环通道来循环冷却介质，冷却介质支撑机械搅拌器并通过密封体（250）将其供应到冷却介质循环通道。 由此，将具有高固相率的反应性固体金属，其中球形非树脂固相颗粒分散在液相金属中。
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公开(公告)号：KR1019990069044A
公开(公告)日：1999-09-06
申请号：KR1019980003062
申请日：1998-02-04
Applicant: 한국과학기술연구원
IPC: C22C21/02
Abstract: 본 발명은 성형 온도 및 모합금내의 Si 조성을 적절히 조절하여 전신재 SiC/2000 계열 Al 합금 복합 재료를 계면 반응 없이 성형할 수 있도록 복합재료의 화학적 성분, 액상률, 성형 온도 등의 공정 변수를 제공하며, 또한 이와 같은 공정 변수를 이용하여 계면 반응을 억제하면서 복합 재료를 성형할 수 있는 복합재료의 성형방법을 제공한다.
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Patent Agency Ranking
公开(公告)号：KR1019950028847A
公开(公告)日：1995-11-22
申请号：KR1019940008666
申请日：1994-04-23
Applicant: 한국과학기술연구원
IPC: B22D18/00
Abstract: 본 발명은 용탕단조법으로 세라믹이나 기타 강화용 소재로 이루어진 다공성 예비성형체와 금속으로 구성된 금속복합재료를 제조하는 방법에 관한 것이다. 본 발명은 세라믹 예비성형체를 상온 또는 금형의 온도 이하로 금형내부에 장입한 후 간접가압식 용탕단조법에 의해50∼500mm/sec의 사출가압속도로 용융금속을 금형과 예비성 형체에 충진시키는 방법이다. 본 발명의 금속복합재료 제조방법에 의하여 금형내부로 충진된 용융급속의 급속한 응고에 따라 치밀한 복합화조직이 얻어지며 내마모성등의 기계적 특성이 우수할 뿐만 아니라 제조공정이 간단하면서도 신뢰성이 높은 제품을 대량 생산할 수 있다는 장점이 있다.
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公开(公告)号：KR100775643B1
公开(公告)日：2007-11-13
申请号：KR1020070000132
申请日：2007-01-02
Applicant: 한국과학기술연구원
IPC: H01M4/86
CPC classification number: H01M4/8621 , H01M4/8663 , H01M4/8668 , H01M4/8857 , H01M4/8882 , H01M4/905 , H01M8/142 , H01M8/145 , H01M2004/8689 , H01M2008/147 , Y02E60/526
Abstract: A modified cathode for a molten carbonate fuel cell is provided to allow long-term operation of a fuel cell by virtue of low solubility to an electrolyte, to realize excellent resistance against mechanical stress, and to enable production of a large-area electrode. A modified cathode for a molten carbonate fuel cell is obtained by coating nickel powder with M-(OH)2, wherein M is a transition metal, followed by reductive firing. In the modified cathode, M-(OH)2 is a reaction product between an aqueous solution of M-(NO3)2, M-SO4 or M-(CH3CO2)2, wherein M is a transition metal, and LiOH or NaOH. Nickel and the transition metal, M, are used in a weight ratio of 100:5.5-100:15.5. The transition metal, M, is selected from the group consisting of Co, Mn, Zn, Cr, Fe and Mg.
Abstract translation: 提供了一种用于熔融碳酸盐燃料电池的改性阴极，以便通过对电解质的低溶解度来实现燃料电池的长期运行，实现优异的机械应力抵抗性，并且能够制造大面积电极。 通过用M-（OH）2涂覆镍粉末，其中M是过渡金属，然后还原烧制，获得熔融碳酸盐燃料电池的改性阴极。 在改性阴极中，M-（OH）2是M-（NO 3）2，M-SO 4或M-（CH 3 CO 2）2的水溶液（其中M是过渡金属）和LiOH或NaOH之间的反应产物。 镍和过渡金属M以重量比为100：5.5-100：15.5使用。 过渡金属M选自Co，Mn，Zn，Cr，Fe和Mg。
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公开(公告)号：KR1020050017671A
公开(公告)日：2005-02-23
申请号：KR1020030053449
申请日：2003-08-01
Applicant: 한국과학기술연구원
IPC: B22F3/00
Abstract: PURPOSE: To provide a method capable of effectively fabricating a metallic wire for thermal spray coating or welding of high quality although a metallic material having low formability is used as a raw material. CONSTITUTION: A fabrication method of metallic wire for thermal spray coating or welding comprises a step of forming molten droplet having a size of 500 μm or less; a step of manufacturing the molten droplet into a laminated composite before the molten droplet is solidified; and a step of processing the laminated composite into a wire rod, wherein a method for forming the molten droplet is a gas atomization method using a gas having a high pressure of 3 to 30 atmospheric pressures, wherein the method for forming the molten droplet is a centrifugal atomization method for forming micro-droplets using centrifugal force of the rotary body as flowing molten metal over a rotary body, and wherein the step of processing the laminated composite into the wire rod is performed at a temperature of 150 to 500 deg.C during extrusion and at an ordinary temperature to 500 deg.C during rolling of fine wire.
Abstract translation: 目的：提供能够有效地制造用于热喷涂或高质量焊接的金属线的方法，尽管使用具有低成形性的金属材料作为原料。 构成：用于热喷涂或焊接的金属线的制造方法包括形成尺寸为500μm以下的熔融液滴的步骤; 在熔融液滴固化之前将熔融液滴制成层压复合体的步骤; 以及将层叠复合体加工成线材的步骤，其中形成熔融液滴的方法是使用3〜30个大气压的高压气体的气体雾化方法，其中形成熔融液滴的方法为 使用旋转体的离心力使流动的熔融金属在旋转体上形成微滴的离心雾化法，其中将层压复合体加工成线材的步骤在150〜500℃的温度下进行， 在细丝轧制过程中在常温至500℃。
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公开(公告)号：KR1020050008179A
公开(公告)日：2005-01-21
申请号：KR1020030048034
申请日：2003-07-14
Applicant: 한국과학기술연구원
IPC: H01M4/90
Abstract: PURPOSE: Provided is a catalyst for a molten carbonate fuel cell using an internal reformer, which has low reactivity with lithium even if it is exposed to hydroxide vapor and thus is not inactivated easily. CONSTITUTION: The catalyst for a molten carbonate fuel cell using an internal reformer is useful in converting hydrocarbons or alcohols supplied to the fuel cell into hydrogen. The catalyst comprises a composite oxide carrier and a catalytically active material dispersed in the carrier, wherein the catalytically active material comprises nickel as main catalytic component, and the carrier is a composite oxide formed of an alkaline earth metal and titanium.
Abstract translation: 目的：提供一种使用内部重整器的熔融碳酸盐燃料电池的催化剂，其即使暴露于氢氧化物蒸气也与锂具有低反应性，因此不容易失活。 构成：使用内部重整器的熔融碳酸盐燃料电池的催化剂可用于将供应到燃料电池的烃或醇转化为氢。 催化剂包含分散在载体中的复合氧化物载体和催化活性材料，其中催化活性材料包括镍作为主要催化组分，载体是由碱土金属和钛形成的复合氧化物。
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