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公开(公告)号：KR1020100074754A
公开(公告)日：2010-07-02
申请号：KR1020080133267
申请日：2008-12-24
Applicant: 전북대학교산학협력단
IPC: C04B35/58 , C04B35/565 , H01L21/24
CPC classification number: C04B35/58085 , C04B35/565 , C04B35/584 , C04B35/62615 , C04B2235/5454 , C04B2235/604 , C04B2235/6581 , C04B2235/666
Abstract: PURPOSE: A producing method of a metal silicide-silicon carbide-silicon nitride composite material is provided to produce the composite material within two minutes by a single process of indirect heating using an induced current. CONSTITUTION: A producing method of a metal silicide-silicon carbide-silicon nitride composite material comprises the following steps: nano-confricating a mixture of metal carbide, metal-nitride, and silicon powder; synthesizing the metal silicide-silicon carbide-silicon nitride composite material by adding the heat generated from an induced current and a pressure to the mixture; removing the pressure and the induced current from the synthesized metal silicide-silicon carbide-silicon nitride composite material; and cooling the metal silicide-silicon carbide-silicon nitride composite material.
Abstract translation: 目的：提供金属硅化物 - 碳化硅 - 氮化硅复合材料的制造方法，通过使用感应电流的单次间接加热工艺在两分钟内生产复合材料。 构成：金属硅化物 - 碳化硅 - 氮化硅复合材料的制造方法包括以下步骤：将金属碳化物，金属氮化物和硅粉末的混合物纳米化; 通过将从感应电流和压力产生的热量加入到混合物中来合成金属硅化物 - 碳化硅 - 氮化硅复合材料; 从合成的金属硅化物 - 碳化硅 - 氮化硅复合材料中去除压力和感应电流; 并冷却金属硅化物 - 碳化硅 - 氮化硅复合材料。
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公开(公告)号：KR100810048B1
公开(公告)日：2008-03-05
申请号：KR1020060090703
申请日：2006-09-19
Applicant: 전북대학교산학협력단
IPC: C04B35/569 , C04B35/14 , B82Y40/00 , B82Y30/00
CPC classification number: C04B35/58085 , C04B35/565 , C04B35/62615 , C04B2235/3843 , C04B2235/428 , C04B2235/5454 , C04B2235/666 , C04B2235/781
Abstract: A method for preparing metal silicide-SiC composites is provided to produce nano-size metal silicide-SiC composites having excellent oxidation resistance and mechanical properties within a short time. A method for preparing metal silicide-SiC composites includes the steps of: pulverizing a mixture of a metal carbide and a silicon powder into nanopowder by a planetary ball milling method; applying pressure and heat to the nano-powdered mixture to synthesize a metal silicide-SiC composite, wherein the heat is generated by an induced current; removing the pressure and induced current from the synthesized metal silicide-SiC composite; and cooling the metal silicide-SiC composite. Further, the metal carbide is at least one selected from a group consisting of TiC, MO2C, VC, TaC, NbC, WC, or ZrC.
Abstract translation: 提供了一种制备金属硅化物-SiC复合材料的方法，以在短时间内制备具有优异抗氧化性和机械性能的纳米尺寸金属硅化物 - SiC复合材料。 制备金属硅化物-SiC复合材料的方法包括以下步骤：通过行星球磨法将金属碳化物和硅粉末的混合物粉碎成纳米粉末; 向纳米粉末混合物施加压力和热量以合成金属硅化物-SiC复合材料，其中热量由感应电流产生; 从合成的金属硅化物 - SiC复合材料中去除压力和感应电流; 并冷却金属硅化物 - SiC复合材料。 此外，金属碳化物为选自TiC，MO2C，VC，TaC，NbC，WC或ZrC中的至少一种。
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Patent Agency Ranking
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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公开(公告)号：KR101272350B1
公开(公告)日：2013-06-07
申请号：KR1020100069381
申请日：2010-07-19
Applicant: 전북대학교산학협력단
Abstract: 본 발명은 나노구조 합금-세라믹 복합재료의 제조방법에 관한 것으로, 특히 금속 산화물 및 금속 분말의 혼합물을 나노 분말화한 후, 이 혼합물에 압력 및 유도전류에 의하여 발생된 열을 가하여 합금-세라믹 복합재료를 합성한 다음, 상기 가해진 압력과 유도전류를 제거하고 냉각하여 나노구조 금속-세라믹 복합재료를 제조함으로써 유도전류에 의한 단일공정으로 3분 이내라는 짧은 시간에 제조할 수 있으며, 값이 매우 싼 출발 원료를 사용하고, 별도의 후처리 공정이 없어 제조 시간과 단가를 줄일 수 있는 나노구조 합금-세라믹 복합재료의 제조방법에 관한 것이다.
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公开(公告)号：KR1020120008591A
公开(公告)日：2012-02-01
申请号：KR1020100069381
申请日：2010-07-19
Applicant: 전북대학교산학협력단
Abstract: PURPOSE: A method for manufacturing a nano-structured alloy-ceramic composite material is provided to obtain the composite material in a short period of time using a solid-phase substitution reaction based on the indirect heating of induced currents. CONSTITUTION: A method for manufacturing a nano-structured alloy-ceramic composite material includes the following: the mixture of metal oxide and metal powder is nano-powderized; heat, generated by pressures or induced currents, is applied to the nano-powderized mixture to synthesize an alloy-ceramic composite material; the pressures and the induced currents are eliminated; and the composite material is cooled. The metal oxide is one of SiO_2, Fe_2O_3, FeO, Cr_2O_3, and NiO. The metal powder is one of Fe,Cr, Al, Si, and Zr.
Abstract translation: 目的：提供一种制造纳米结构的合金 - 陶瓷复合材料的方法，以使用基于感应电流的间接加热的固相取代反应在短时间内获得复合材料。 构成：制造纳米结构合金 - 陶瓷复合材料的方法包括：金属氧化物和金属粉末的混合物是纳米粉末化的; 通过压力或感应电流产生的热量被施加到纳米粉末混合物以合成合金 - 陶瓷复合材料; 消除了压力和感应电流; 并将复合材料冷却。 金属氧化物是SiO_2，Fe_2O_3，FeO，Cr_2O_3和NiO中的一种。 金属粉末是Fe，Cr，Al，Si和Zr之一。
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