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公开(公告)号：KR1020100024213A
公开(公告)日：2010-03-05
申请号：KR1020080082968
申请日：2008-08-25
Applicant: 전북대학교산학협력단
CPC classification number: C01B32/90 , B82Y30/00 , B82Y40/00 , C01P2004/64
Abstract: PURPOSE: A manufacturing method of a nano structure metal carbide and the and nano structure metal carbide manufactured from thereof are provided to perform a pressing molding and a sintering operation at high temperature in several minutes by heating nano powder with a heat generated from an inducing current or an impulse current. CONSTITUTION: A manufacturing method of a nano structure metal carbide comprises the following steps: nano pulverizing the metal carbide powder to make a nano particle size by ball milling; pressing molding and sintering the powder from the nano pulverizing step while heating the powder with a heat generated from an electric current; and cooling the pressing molded and sintered nano structure at room temperature when the contraction length does not change by blocking the electric current. The metal carbide powder is selected from the group consisting of titanium carbide, tungsten carbide, silicon carbide, tantalium carbide, vanadium carbide, and niobium carbide.
Abstract translation: 目的：提供纳米结构金属碳化物的制造方法和由其制造的纳米结构金属碳化物，以在几分钟内通过用感应电流产生的热量加热纳米粉末进行压制成型和烧结操作 或脉冲电流。 构成：纳米结构金属碳化物的制造方法包括以下步骤：通过球磨将纳米粉碎金属碳化物粉末制成纳米粒度; 在从电流产生的热量加热粉末的同时，从纳米粉碎步骤中压制和烧结粉末; 并且当收缩长度不通过阻断电流而改变时，在室温下冷却压制和烧结的纳米结构。 金属碳化物粉末选自碳化钛，碳化钨，碳化硅，碳化钽，碳化钒和碳化铌。
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公开(公告)号：KR1020090124259A
公开(公告)日：2009-12-03
申请号：KR1020080050359
申请日：2008-05-29
Applicant: 전북대학교산학협력단
Abstract: PURPOSE: A method for manufacturing a nano-structured metal ceramic is provided to inhibit the growth of the crystal grain of metal ceramics and to improve the interface adhesion. CONSTITUTION: A method for manufacturing a nano-structured metal ceramic comprises the steps of ball milling a mixture of any one of a specific metal carbide or a specific metal nitride and a specific metal powder to obtain a nanoparticle; press molding and sintering the nano-structured mixture with applying the heat generated by the induction current or the impulse current; and blocking the induction current or the impulse current if there is no change of the shrinkage length of the nano-structured mixture, and cooling the press molded and sintered nano-structured mixture to a room temperature just before the induction current or the impulse current is blocked.
Abstract translation: 目的：提供一种制造纳米结构金属陶瓷的方法，以抑制金属陶瓷的晶粒生长并提高界面附着力。 构成：制造纳米结构金属陶瓷的方法包括以下步骤：将特定金属碳化物或特定金属氮化物中的任何一种的混合物和特定的金属粉末球磨，以获得纳米颗粒; 通过施加由感应电流或脉冲电流产生的热量来压制和烧结纳米结构的混合物; 并且如果纳米结构混合物的收缩长度没有变化，则阻止感应电流或脉冲电流，并且将压模和烧结的纳米结构混合物在感应电流或脉冲电流之前的室温下冷却至室温 受阻。
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公开(公告)号：KR101145709B1
公开(公告)日：2012-05-24
申请号：KR1020090101163
申请日：2009-10-23
Applicant: 전북대학교산학협력단
Abstract: 본 발명은 나노구조의 금속탄화물과 탄소나노튜브가 혼합된 복합재료 및 이의 제조방법에 관한 것이다.
본 발명의 나노구조 금속탄화물-탄소나노튜브 복합재료는, 나노구조의 금속탄화물과 탄소나노튜브가 혼합되어 소결된 것을 특징으로 한다.
또한 본 발명의 나노구조 금속탄화물-탄소나노튜브 복합재료의 제조방법은, 나노크기의 금속탄화물 분말과 탄소나노튜브를 혼합하는 단계; 혼합된 분말에 전류를 가하여 상기 혼합분말 자체에 열을 발생시킴과 동시에 혼합분말을 가압 성형하여 소결하는 단계; 및 상기 소결되는 재료의 수축길이 변화가 발생되지 않는 시점에서 전류 및 압력을 제거하고 냉각하는 단계를 포함하는 것이 특징이다.
이에 따르면, 내부식성이 뛰어난 나노구조 금속탄화물-탄소나노튜브 복합재료를 2~5분의 단시간에 제조할 수 있기 때문에, 종래에 비하여 금속탄화물의 결정립이 성장하는 것을 방지할 수 있어서 기계적 성질이 뛰어난 초경재료를 제조할 수 있다.
금속탄화물, 탄소나노튜브, 나노구조, 경도, 파괴인성, 내부식성-
公开(公告)号：KR1020110044474A
公开(公告)日：2011-04-29
申请号：KR1020090101163
申请日：2009-10-23
Applicant: 전북대학교산학협력단
CPC classification number: C01B32/168 , B82B1/00 , B82B3/0009 , C01G41/00
Abstract: PURPOSE: A nano-structure metal carbide-carbon nano-tube composite material and a method for preparing the same are provided to improve the anticorrosion property of a super hard material by mixing and sintering nano structure metal carbide and carbon nano-tube. CONSTITUTION: A nano-structure metal carbide-carbon nano-tube composite material is mixed-sintered body of nano structure metal carbide and carbon nano-tube. 1 to 50 vol% of carbon nano-tube is mixed. The metal carbide is one selected from a group including titanium carbide and tungsten carbide. The nano-structure metal carbide powder and the carbon nano-tube are mixed. A current is applied to mixed powder in order to generate heat in the mixed powder. The mixed powder is pressure-molded to be sintered. A cooling process is followed.
Abstract translation: 目的：提供纳米结构金属碳化物 - 碳纳米管复合材料及其制备方法，通过混合烧结纳米结构金属碳化物和碳纳米管，提高超硬材料的耐腐蚀性能。 构成：纳米结构金属碳化物 - 碳纳米管复合材料是纳米结构金属碳化物和碳纳米管的混合烧结体。 1〜50体积％的碳纳米管混合。 金属碳化物是选自包括碳化钛和碳化钨的组中的一种。 纳米结构金属碳化物粉末和碳纳米管混合。 为了在混合粉末中产生热量，将电流施加到混合粉末。 将该混合粉末进行压塑以进行烧结。 遵循冷却过程。
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