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公开(公告)号：KR1020110007717A
公开(公告)日：2011-01-25
申请号：KR1020090065301
申请日：2009-07-17
Applicant: 충남대학교산학협력단
CPC classification number: B22F9/20 , B22F1/0044 , B22F2201/10 , B22F2201/20 , B22F2304/05
Abstract: PURPOSE: A method for manufacturing nano tantalum powders by self-propagating high-temperature synthesis is provided to make products of high purity by increment in reaction yield due to vaporization of impurities. CONSTITUTION: A method for manufacturing nano tantalum powders by self-propagating high-temperature synthesis comprises following steps. Raw materials containing tantalum oxide and alkaline salt which is metal restoration material and is particle growth inhibitor are mixed and molded into a pellet. The pellet is charged into a self-propagating high-temperature synthesis device. The pellet is ignited locally and instantaneously under vacuum or inert gas atmosphere to perform self-propagating high-temperature synthesis.
Abstract translation: 目的：提供通过自蔓延高温合成制造纳米钽粉末的方法，由于杂质的蒸发而使反应产率提高，使得产品成为高纯度。 构成：通过自传播高温合成制造纳米钽粉的方法包括以下步骤。 将作为金属修复材料的氧化钽和碱性盐的原料和颗粒生长抑制剂混合并成型为颗粒。 将颗粒装入自传播的高温合成装置中。 颗粒在真空或惰性气体气氛下局部和瞬时点燃以进行自传播的高温合成。
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公开(公告)号：KR100999401B1
公开(公告)日：2010-12-09
申请号：KR1020080092686
申请日：2008-09-22
Applicant: 충남대학교산학협력단
Abstract: 본 발명은 중성자흡수재, 방탄소재로 사용되는 탄화붕소 분말을 제조하기 위한 방법에 관한 것으로 보다 간단하고 저 비용으로 고순도 탄화붕소 분말을 대량생산할 수 있는 제조하는 방법을 제공한다.
본 발명은 자전연소반응을 이용하여 탄화붕소를 제조하는 특징이 있으며, 상세하게 (a) 산화붕소; 마그네슘; 탄소; 및 알칼리염;을 함유하는 원료를 혼합하여 펠렛(pallet)으로 성형하는 단계; (b) 상기 펠렛을 자전 연소반응기에 장입한 후, 진공 또는 불활성 기체 분위기에서 상기 펠렛을 국부적으로 순간 가열ㆍ점화시켜 자전연소반응시키는 단계; 및 (c) 상기 (b) 단계의 반응 생성물을 분쇄한 후, 산성 용액으로 침출(leaching)시키고 물로 세척하는 단계;를 포함하여 수행되는 특징이 있다.
탄화붕소, 분말, 산화붕소, 탄소, 환원, 알칼리염, 자전연소반응, 자전고온합성법-
公开(公告)号：KR100984273B1
公开(公告)日：2010-10-01
申请号：KR1020100048585
申请日：2010-05-25
Applicant: 충남대학교산학협력단
CPC classification number: C09K11/7734 , C09K11/0883 , H01L33/502 , H01L2924/0002 , Y02B20/181 , Y02B20/34 , H01L2924/00
Abstract: PURPOSE: A nitride phosphor, a manufacturing method thereof, and a light emitting device including thereof are provided to effectively change UV rays and blue lights to an orange-red light, and to secure the small particle size and the high surface area and of the phosphor. CONSTITUTION: A manufacturing method of a nitride phosphor having the composition of Me_(2-x)R_xSi_5N_8 comprises the following steps: supplying a mixture including a rare earth metal source, alkali earth metal salt, alkali metal azide, and silicon source silicon powder; performing a self-propagating high-temperature synthesis after complexing the mixture in a high pressure reactor; and separating and washing the red nitride phosphor generated from the high-temperature synthesis.
Abstract translation: 目的：提供一种氮化物荧光体及其制造方法以及包括其的发光装置，以有效地将紫外线和蓝光变为橙红色光，并确保小的粒径和高的表面积 磷。 构成：具有Me_（2-x）R_xSi_5N_8组成的氮化物荧光体的制造方法包括以下步骤：供给包含稀土金属源，碱土金属盐，碱金属叠氮化物和硅源硅粉末的混合物; 在将混合物在高压反应器中络合后进行自扩散的高温合成; 并分离和洗涤由高温合成产生的红色氮化物荧光体。
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公开(公告)号：KR1020100033696A
公开(公告)日：2010-03-31
申请号：KR1020080092686
申请日：2008-09-22
Applicant: 충남대학교산학협력단
Abstract: PURPOSE: A manufacturing method of boron carbide powder using magnetoelectricity reaction of combustion is provided to adjust the size of raw materials by performing a magnetoelectricity reaction of combustion in a vacuum or an inert gaseous environment. CONSTITUTION: A manufacturing method of boron carbide powder using magnetoelectricity reaction of combustion comprises a step for self-propagating a high-temperature synthesis of raw materials in a vacuum or an inert gaseous environment and a step for manufacturing boron carbide powder. The raw materials include oxidation boron, magnesium, carbon, and alkaline salt. The magnesium is used as a metal reducing agent. The alkaline salt is used as a particle growth inhibitor.
Abstract translation: 目的：提供使用燃烧磁电反应的碳化硼粉末的制造方法，通过在真空或惰性气体环境中进行燃烧的磁电反应来调节原料的尺寸。 构成：使用燃烧磁电反应的碳化硼粉末的制造方法包括在真空或惰性气体环境中自蔓延原料高温合成的步骤和制造碳化硼粉末的步骤。 原料包括氧化硼，镁，碳和碱性盐。 镁用作金属还原剂。 碱性盐用作颗粒生长抑制剂。
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公开(公告)号：KR1020090119120A
公开(公告)日：2009-11-19
申请号：KR1020080044970
申请日：2008-05-15
Applicant: 충남대학교산학협력단
IPC: B22F9/20 , B22F9/18 , B22F1/00 , C01B32/949
Abstract: PURPOSE: A method for manufacturing ultrafine tungsten carbide powder using molten salt-assisted SHS is provided to control particles size of the powder with a sub-micron unit, and to produce the powder of high purity. CONSTITUTION: A method for manufacturing ultrafine tungsten carbide powder using molten salt-assisted SHS includes the following steps of: gaining a raw material by mixing organic materials containing oxygen and carbon, tungsten oxide, a reducing agent, a carbon source, alkaline salt, carbonate and a reaction activator; putting the raw material to a high pressure container; reducing the tungsten oxide by igniting and heating the raw material locally; washing a generated reaction product with distilled water; and washing the product with an acid solution. The alkaline salt is LiF, LiCl, LiBr, LiI, NaF, NaCl, NaBr, NaI, KF, KCl, KBr, KI, or their salt mixture. The reaction activator includes sodium carbonate, potassium carbonate, sodium hydrogen carbonate, potassium hydrogen carbonate, magnesium carbonate, calcium carbonate, ammonium carbonate, urea, melamine, polystyrene, and their mixture.
Abstract translation: 目的：提供使用熔融盐辅助SHS制造超细碳化钨粉末的方法，以亚微米单位控制粉末的粒径，并生产出高纯度的粉末。 构成：使用熔融盐辅助SHS制造超细碳化钨粉末的方法包括以下步骤：通过混合含有氧和碳的有机材料，氧化钨，还原剂，碳源，碱性盐，碳酸盐来获得原料 和反应活化剂; 将原料放入高压容器中; 通过局部点燃和加热原料来减少氧化钨; 用蒸馏水洗涤产生的反应产物; 并用酸溶液洗涤产物。 碱性盐为LiF，LiCl，LiBr，LiI，NaF，NaCl，NaBr，NaI，KF，KCl，KBr，KI或其盐混合物。 反应活化剂包括碳酸钠，碳酸钾，碳酸氢钠，碳酸氢钾，碳酸镁，碳酸钙，碳酸铵，尿素，三聚氰胺，聚苯乙烯及其混合物。
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Patent Agency Ranking
公开(公告)号：KR100586086B1
公开(公告)日：2006-06-01
申请号：KR1020020006455
申请日：2002-02-05
Applicant: 충남대학교산학협력단
Inventor： 원창환
Abstract: 연속식 수열합성 반응기를 통하여 PZT 분말을 제조하는 방법이 개시되어 있다. 기존의 수열합성기는 원료의 장입, 반응, 배출등의 공정을 진행하기 위해 장시간이 소요되며, 반응기의 승온, 냉각시에 에너지소모가 많은 단점이 있었다. 본 발명에서는 이러한 단점을 극복하고, 연속적으로 양산할 수 있는 수열합성 반응기를 발명하였으며, 본 반응기를 이용하여 PZT 분말을 제조하였다. 본 발명에 따르면, PZT 분말의 경우 Pb(OH)
2 , Pb(NO
3 )
2 ,
Zr(OH)
4 , ZrOCl
2 ㆍ8H
2 O, TiCl
4 , TiO
2 등과 NaOH 또는 KOH, H
2 O등을 수열합성 반응기에 장입한 후 150∼200℃에서 수열합성 시킨다. 그 결과로서 생성된 생성물을 수열합성 반응기로부터 취출하여 수세한 후 100℃에서 24시간 건조시키면 PZT 분말을 얻을 수 있다.-
公开(公告)号：KR1020030064176A
公开(公告)日：2003-07-31
申请号：KR1020020004682
申请日：2002-01-26
Applicant: 충남대학교산학협력단
Inventor： 원창환
IPC: C01B21/076
CPC classification number: C01B21/0761
Abstract: PURPOSE: Provided is a method for synthesizing titanium nitride by causing reaction between metal titanium and nitrogen gas. CONSTITUTION: The method comprises the steps of inputting metal titanium powder into a reaction pipe; filling the reaction pipe with Ar gas,; introducing nitrogen gas into the reaction pipe at flow rate of 40 ml/min while heating the pipe to 1000°C for 100 hours; homogenizing titanium nitride of reaction product of the third step at 1000°C in argon or vacuum ambient; and grinding the homogenized titanium nitride and sieving the titanium nitride particles.
Abstract translation: 目的：提供金属钛和氮气之间的反应来合成氮化钛的方法。 构成：该方法包括将金属钛粉末输入反应管中的步骤; 用Ar气填充反应管; 以40ml / min的流速将氮气引入反应管中，同时将管道加热至1000℃保持100小时; 在氩气或真空环境中，在1000℃下均化第三步反应产物的氮化钛; 并研磨均匀化的氮化钛并筛分氮化钛颗粒。
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公开(公告)号：KR1020130133376A
公开(公告)日：2013-12-09
申请号：KR1020120056563
申请日：2012-05-29
Applicant: 충남대학교산학협력단
IPC: B22F9/20
Abstract: A manufacturing method of low oxygen titanium (Ti) powder using self-propagating high-temperature synthesis (SHS) according to the present invention has a characteristic of performing SHS for a raw material containing titanium oxide, metal reducing agents, and reduction surfactants in a vacuum or inert gas atmosphere in order to produce low oxygen titanium powder. The manufacturing method according to the present invention provides an advantage of effectively manufacturing titanium powder containing 1.5% or less oxygen contents. Also, reaction time is within a few seconds or a few minutes, a process time is short, and the process is simple and has good heat efficiency and productivity, compared to an existing manufacturing process. Therefore, the method has an advantage that manufacturing costs are largely reduced and mass production is possible. [Reference numerals] (AA) Example 4;(BB) Example 3;(CC) Example 2;(DD) Example 1
Abstract translation: 使用本发明的自蔓延高温合成（SHS）的低氧钛（Ti）粉末的制造方法具有在含有氧化钛，金属还原剂和还原性表面活性剂的原料中进行SHS的特性 真空或惰性气体气氛，以生产低氧钛粉。 根据本发明的制造方法提供了有效地制造含有1.5％以下氧含量的钛粉末的优点。 此外，与现有制造工艺相比，反应时间在几秒或几分钟内，处理时间短，并且该方法简单并且具有良好的热效率和生产率。 因此，该方法具有制造成本大幅度降低且批量生产成为可能的优点。 （AA）实施例4（BB）实施例3（CC）实施例2（DD）实施例1
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公开(公告)号：KR101044726B1
公开(公告)日：2011-06-28
申请号：KR1020090000793
申请日：2009-01-06
Applicant: 충남대학교산학협력단
Abstract: 본 발명은 적층세라믹콘덴서(MLCC, Multi Layer Ceramic Capacitor)의 내부 전극으로 사용되는 니켈 분말을 제조하기 위한 방법에 관한 것으로, 종래의 니켈 분말 제조방법의 문제점을 해결하여 경제적인 방법으로 니켈 분말을 제조하는 방법을 제공하고자 한다. 본 발명의 특징은 황화니켈(Ⅱ)(NiSO
4 ), pH조절제, 차아인산나트륨(NaH
2 PO
2 ) 및 히드라진(N
2 H
2 )을 환원반응이 종료할 때까지 혼합한 후 수세, 건조 등의 공정을 거쳐 니켈 분말을 제조한다. 상온에서 단시간 동안 환원반응이 가능하도록 하고, 입도제어를 위하여 황화니켈, 차아인산나트륨, 히드라진 및 유기용매의 첨가량과 온도 등을 변수로 한다. 이에 따라 기존 기술의 단점을 해결하여 경제적이면서도 고순도의 미세 니켈 분말의 제조방법을 제공하는데 있다.
차아인산나트륨, 구형 니켈, 화학 환원, 입자 크기-
公开(公告)号：KR101005723B1
公开(公告)日：2011-01-10
申请号：KR1020100049683
申请日：2010-05-27
Applicant: 충남대학교산학협력단
CPC classification number: C09K11/7734
Abstract: PURPOSE: A transition metal stabilized α type sialon phosphor is provided to ensure short reaction time and to solve problems on use of plural gases and a high temperature and high pressure heat treatment. CONSTITUTION: A transition metal stabilized α type sialon phosphor comprises the steps of: (a) performing selfpropagating high-temperature synthesis by injecting a mixture of transition metal oxide, rare earth metal compounds, silicon circle, aluminum source, reducing agent and reaction activator into a high-pressure reactor, and then momentary and locally igniting the mixture in a nitrogen atmosphere; and (b) washing the products with distilled water and then acidic solution.
Abstract translation: 目的：提供过渡金属稳定的α型赛隆荧光体，以确保反应时间短，解决使用多种气体和高温高压热处理的问题。 构成：过渡金属稳定的α型赛隆荧光体包括以下步骤：（a）通过将过渡金属氧化物，稀土金属化合物，硅环，铝源，还原剂和反应活化剂的混合物注入到自发性高温合成中 高压反应器，然后在氮气气氛中瞬间和局部点燃混合物; 和（b）用蒸馏水然后酸性溶液洗涤产物。
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