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公开(公告)号：KR1020120114834A
公开(公告)日：2012-10-17
申请号：KR1020110032618
申请日：2011-04-08
Applicant: 한국세라믹기술원
CPC classification number: D01F9/14 , C01B32/956 , C04B35/565 , D01D5/08 , D01D10/02 , D01F9/12 , D02G3/02 , D02G3/44 , D10B2101/00 , D10B2505/04
Abstract: PURPOSE: A method for fabricating silicon carbide fibers is provided to easily and efficiently fabricate the silicon carbon fibers with uniform nano porous structure. CONSTITUTION: A method for fabricating silicon carbide fibers with a nano porous structure comprises: a step of controlling the ratio of silicon, carbon, and oxygen of polycarbosilane fibers; and a step of performing thermal treatment of the polycarbosilane fibers. The polycarbosilane fibers are fabricated by heating and fusing polycarbosilane and spinning the polycarbosilane in a fiber phase.
Abstract translation: 目的：提供一种制造碳化硅纤维的方法，以便以均匀的纳米多孔结构容易且有效地制造硅碳纤维。 构成：用于制造具有纳米多孔结构的碳化硅纤维的方法包括：控制聚碳硅烷纤维的硅，碳和氧的比例的步骤; 以及对聚碳硅烷纤维进行热处理的步骤。 聚碳硅烷纤维通过加热和熔融聚碳硅烷并在纤维相中纺丝聚碳硅烷来制造。
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公开(公告)号：KR101110353B1
公开(公告)日：2012-04-05
申请号：KR1020080008755
申请日：2008-01-28
Applicant: 한국세라믹기술원
IPC: D04H1/558 , D04H1/4209 , D04H1/724
Abstract: Provided are an SiC mat manufacturing method which simplifies the manufacturing process, facilitates control of mat thickness, contact between fibers, porosity and the like, and can generate infrared rays of high efficiency, and an SiC mat manufacturing apparatus using the SiC mat manufacturing method. A silicon carbide(SiC) mat manufacturing apparatus comprises: a melt blowing nozzle system(100); an inline conveyor system(200) including a collecting fabric mounted under the nozzle system; a warm-roll unit(300) installed on an end part of the conveyor system to mold the fibers by heating and pressing fibers; and a high temperature stabilization furnace(400) extending from the warm-roll unit to stabilize a pre-mat on the inline conveyor system. The melt blowing nozzle system includes a hopper(110), an extruder(130), and a nozzle(140). The silicon carbide(SiC) mat manufacturing apparatus further comprises a sintering furnace connected to the stabilization furnace to subject the stabilized pre-mat to the sintering process and a perforator installed on the inline conveyor system to manufacture a perforated silicon carbide(SiC) mat.
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公开(公告)号：KR1020110113526A
公开(公告)日：2011-10-17
申请号：KR1020100032967
申请日：2010-04-09
Applicant: 한국세라믹기술원
IPC: D01F8/18 , C04B35/575 , D01F9/08 , D01F9/10 , D01D10/02
CPC classification number: D01F8/18 , C04B35/575 , D01D10/02 , D01F9/08 , D01F9/10 , D10B2401/062 , D10B2401/063
Abstract: 본 발명은 실리콘카바이드 및 이의 제조방법에 관한 것으로, 구체적으로는 할라이드계 기체를 이용한 기체훈증법으로 안정화시킨 폴리카보실란을 이용하여 실리콘카바이드를 제조하는 것으로, 본 발명에 따른 안정화 공정을 통해 저분자의 폴리카보실란을 이용한 섬유화가 가능하므로 폴리카보실란의 합성조건을 완화시킬 수 있고, 또한 저분자의 폴리카보실란을 이용해 방사하게 되면 방사성이 향상되어 섬유의 사이즈를 가늘게 제조할 수 있다. 아울러 폴리카보실란을 안정화시키는 공정시간이 짧아지고 이로부터 안정화시키는 공정에서 열처리 공정에 이르는 공정이 연속적으로 가능할 수 있다.
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公开(公告)号：KR1020090110468A
公开(公告)日：2009-10-22
申请号：KR1020080035988
申请日：2008-04-18
Applicant: 한국세라믹기술원
CPC classification number: B01J37/348 , B01J19/08 , B82Y40/00
Abstract: PURPOSE: A catalyst manufacturing method using a reactor is provided to reduce processing time and cost, and to produce many kinds of complex catalysts by using various technologies. CONSTITUTION: A catalyst manufacturing method using a reactor comprises includes a step for offering nanoporous metal oxide of a bulk type, and a step for reacting the nanoporous metal oxide with a catalyst. The nanoporous metal oxide is formed by anode oxidation of a first metal. In a reacting container, the nanoporous metal oxide is reacted with the catalyst. The nanoporous metal oxide is formed to a spring shape. And the nanoporous metal oxide is provided to a stirrer form.
Abstract translation: 目的：提供使用反应器的催化剂制造方法，以减少加工时间和成本，并通过使用各种技术生产多种复合催化剂。 构成：使用反应器的催化剂制造方法包括提供本体型纳米多孔金属氧化物的步骤和使纳米多孔金属氧化物与催化剂反应的步骤。 纳米多孔金属氧化物通过第一金属的阳极氧化形成。 在反应容器中，使纳米多孔金属氧化物与催化剂反应。 纳米多孔金属氧化物形成为弹簧形状。 并将纳米多孔金属氧化物提供到搅拌器形式。
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45.发明公开
公开(公告)号：KR1020090058807A
公开(公告)日：2009-06-10
申请号：KR1020070125571
申请日：2007-12-05
Applicant: 한국세라믹기술원
Abstract: A method for manufacturing polycarbosilane is provided to efficiently prepare polycarbosilane including impurities caused by a catalyst by using an inexpensive catalyst and to easily remove a reaction catalyst in a synthesizing process. A method for manufacturing polycarbosilane comprises a step of synthesizing polycarbosilane from polydimethylsilane by using alumina powder as a catalyst. The catalyst is mixed with alumina powder, zeolite inert ceramics or Lewis acid solid acid catalyst. The method further comprises the steps of: providing an organic metal precursor; and removing the catalyst by filtering or centrifuging the manufactured polycarbosilane.
Abstract translation: 提供一种制造聚碳硅烷的方法，以便通过使用廉价的催化剂有效地制备包含由催化剂引起的杂质的聚碳硅烷，并且在合成过程中容易地除去反应催化剂。 一种制造聚碳硅烷的方法包括通过使用氧化铝粉末作为催化剂从聚二甲基硅烷合成聚碳硅烷的步骤。 催化剂与氧化铝粉末，沸石惰性陶瓷或路易斯酸固体酸催化剂混合。 该方法还包括以下步骤：提供有机金属前体; 并通过过滤或离心制备的聚碳硅烷来除去催化剂。
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Patent Agency Ranking
公开(公告)号：KR1020080099632A
公开(公告)日：2008-11-13
申请号：KR1020070045428
申请日：2007-05-10
Applicant: 한국세라믹기술원
CPC classification number: C08G77/02 , C01B32/956 , C08G77/60 , C22C29/065 , D01F8/18
Abstract: A porous polycarbosilane tube and a method for manufacturing the same is provided to control the thickness of tube wall freely due to high specific surface area of the wall and the developed pore structure and to ensure excellent high strength, heat resistance, corrosion resistance and environmental proofing property. A method for manufacturing polycarbosilane tube comprises a step for extruding polycarbosilane in a fibrous type; a step for heat-treating it in the oxidizing atmosphere and hardening from the surface of polycarbosilane to form a uncured part on the fibrous polycarbosilane central part; and a step for forming hollow by dissolving the uncured central part of the fibrous polycarbosilane with a polar solvent.
Abstract translation: 提供多孔聚碳硅烷管及其制造方法，由于壁的高比表面积和显影孔结构自由地控制管壁的厚度，并且确保优异的高强度，耐热性，耐腐蚀性和环境保护性 属性。 聚碳硅烷管的制造方法包括将纤维状聚碳硅烷挤出的工序; 在氧化气氛中进行热处理，从聚碳硅烷表面硬化，在纤维状聚碳硅烷中心部形成未固化部的工序; 以及通过用极性溶剂溶解纤维状聚碳硅烷的未固化的中心部分来形成中空的步骤。
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公开(公告)号：KR101674585B1
公开(公告)日：2016-11-09
申请号：KR1020150009672
申请日：2015-01-21
Applicant: 한국세라믹기술원
Abstract: 본발명은탄화규소분말의질소함유량을감소시키는방법및 이에의해제조된탄화규소단결정에관한것이다. 본발명에따르면탄화규소분말의질소함유량을 100 ppm 이하로낮출수 있고, 이를이용하여탄화규소단결정성장시 10ohm-cm 이상의고저항탄화규소단결정의수득이가능하다.
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公开(公告)号：KR101581243B1
公开(公告)日：2015-12-31
申请号：KR1020130151420
申请日：2013-12-06
Applicant: 한국세라믹기술원
IPC: C04B35/565 , C01B31/36
Abstract: 본발명은ⅰ) 초고분자폴리카보실란을미분으로분쇄하는단계; ⅱ) 초고분자폴리카보실란미분을가용성폴리카보실란용액에첨가하여함침용액을형성하는단계; ⅲ) 상기함침용액에프리폼을함침시키는단계; ⅳ) 함침된프리폼을건조및 안정화하는단계; 및ⅴ) 고온열처리하는단계를포함하는실리콘카바이드세라믹복합체의제조방법, 및이러한제조방법에따라제조된실리콘카바이드에관한것이다. 본발명에따르면세라믹분말필러가아닌비중이낮고세라믹전환수율이높은고분자분말을필러로이용함으로써, 기존의방법에비하여복합화효율을향상시킬수 있으며, 필러가함침용액내에서장시간동안안정하게균일분산을유지하여, 함침안정성을얻을수 있고, 공지된간단한분쇄방법을적용하여분말의입도및 분포를용이하게제어할수 있어다양한함침공정제어가가능하다. 이와같은치밀화함침방법을적용함으로써함침공정을단순화할수 있으며, 고밀도의섬유강화세라믹복합체를경제적및 효율적으로제조할수 있다.
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公开(公告)号：KR101517024B1
公开(公告)日：2015-05-06
申请号：KR1020130130876
申请日：2013-10-31
Applicant: 한국세라믹기술원
IPC: C01B21/072 , B01J6/00
CPC classification number: C01B21/0728 , B01J6/001
Abstract: 승화-재결정방법을이용하여입도 10 ㎛이상순도 99.9%의질화알루미늄분말제조방법이개시된다. 본발명은단결정성장용질화알루미늄분말제조방법에있어서, (a) 평균입경 5 미크론미만인질화알루미늄분말을로 내부에제공하는단계; (b) 진공펌프로상기로 내부의압력을대기압미만인제1 압력으로감압하고상기로를폐쇄하는단계; (c) 감압상태에서상기로 내의온도를제1 온도로유지하는제1 열처리단계; 및 (d) 상기로 내의온도를상기제1 온도보다낮은제2 온도로감온하여상기상기질화알루미늄분말을입성장시키는제2 열처리단계를포함하는단결정성장용질화알루미늄분말의제조방법을제공한다. 본발명에따르면단결정성장용분말로서적합한큰 입경을가지며고순도의질화알루미늄분말을얻을수 있다.
Abstract translation: 在本发明中，提供了粒径不小于10μm，纯度为99.9％的氮化铝粉末的制造方法，其包括以下步骤：（a）提供平均粒径小于5μm的氮化铝粉末至 炉内; （b）将炉子的内部压力降低到小于大气压力的第一压力并关闭炉子; （c）将炉子的内部温度维持在作为第一温度的降低状态的第一热处理步骤; 和（d）第二处理步骤，其中炉的内部温度降低到低于第一温度的第二温度，从而生长氮化铝粉末作为制造的氮化铝粉末具有高纯度和大的氮化铝粉末 适合单晶生长的粒径。
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