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公开(公告)号:KR1019950001672B1
公开(公告)日:1995-02-28
申请号:KR1019900011939
申请日:1990-08-03
IPC: C04B35/58
Abstract: The composite comprises Si oxynitride, Si nitride and B nitride of 10-40 wt.%. The total of Si oxynitride and Si nitride is 60-90 wt.%, and Si oxynitride is at least 10 wt.%. The composite is useful for manufacturing cast brake rings for car.
Abstract translation: 复合材料包含10-40重量%的氮氧化硅,氮化硅和氮化硼。 Si氮氧化物和Si氮化物的总和为60-90重量%,Si氧氮化物为至少10重量%。 该复合材料可用于制造汽车用铸造刹车环。
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公开(公告)号:KR100523291B1
公开(公告)日:2005-10-25
申请号:KR1020030013603
申请日:2003-03-05
Applicant: 한국화학연구원
Abstract: 본 발명은 나노크기 입자를 가진 티타네이트계 분말의 제조방법에 관한 것으로서, 더욱 상세하게는 입자가 나노크기를 갖는 티타네이트계 분말 제조를 위한 전구체 용액에 유기카복실산, 글리콜 또는 다가알콜 등의 유기물질들을 적정비율로 첨가하고 분무 열분해법에 의해 액적으로 분무하여 매우 속이 빈 형태의 전구체 분말들을 제조하고, 이를 소성공정 및 밀링에 의한 분쇄공정을 통해 비응집성의 나노 티타네이트계 분말로 대량 합성하는 방법에 관한 것이다.
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公开(公告)号:KR100507638B1
公开(公告)日:2005-08-10
申请号:KR1020020075262
申请日:2002-11-29
Applicant: 한국화학연구원
Abstract: 본 발명은 구형 니켈 미세 분말의 제조방법에 관한 것으로서, 분무열분해 공정을 이용하여 구형 니켈 금속 및 니켈 산화물 미세 분말을 제조함에 있어서, 니켈 전구체 물질과 함께 나노 금속 콜로이드를 첨가함에 따라 제조된 니켈 미세 분말은, 상기 나노 금속 콜로이드의 첨가 없이 제조된 종래의 니켈 입자에 비해 속이 차고 완벽한 구형의 형상을 가지며, 다양한 전자부품 및 응용분야에서 그 기초 원료 분말로서 널리 활용될 수 있다.
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公开(公告)号:KR100462073B1
公开(公告)日:2004-12-17
申请号:KR1020020039962
申请日:2002-07-10
Applicant: 한국화학연구원
IPC: B01J2/06
Abstract: PURPOSE: Provided is an ultrasonic spray pyrolysis apparatus for producing ultrafine particles, the apparatus being capable of producing ultrafine particles in large volumes under optimum condition. CONSTITUTION: The apparatus comprises a liquid droplet generator(1) for generating liquid droplets from a reaction solution, a plurality of liquid droplet sprayers(4), a reactor for drying the sprayed liquid droplet and performing pyrolysis to produce particles, and a collector for collecting the particles, wherein the liquid droplet generator(1) includes a plurality of ultrasonic oscillators, the reactor includes a plurality of reaction pipes(5) and the number of the liquid droplet sprayers(4) and the reaction pipes(5) is the same as the number of the ultrasonic oscillators.
Abstract translation: 目的:提供一种用于生产超细颗粒的超声喷雾热解设备,该设备能够在最佳条件下大量生产超细颗粒。 本发明的装置包括:用于从反应溶液产生液滴的液滴发生器(1),多个液滴喷雾器(4),用于干燥喷雾液滴并进行热解以产生颗粒的反应器, 收集颗粒,其中液滴发生器(1)包括多个超声波振荡器,反应器包括多个反应管(5),液滴喷射器(4)和反应管(5)的数量是 与超声波振荡器的数量相同。
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公开(公告)号:KR100443257B1
公开(公告)日:2004-08-04
申请号:KR1020010066033
申请日:2001-10-25
Applicant: 한국화학연구원
IPC: C09K11/78
Abstract: PURPOSE: Provided is a tungsten-based red phosphor used for a UV LED and an active luminescent LCD, which has excellent luminescent brightness by doping europium and samarium to a tungsten-based oxide matrix. CONSTITUTION: The tungsten-based red phosphor represented by the formula: (M(WO4)y:Euz,Smx) is produced by adding europium oxide as an activator and samarium oxide as an energizer to the tungsten-based oxide matrix. The phosphor has a strong absorption peak in the wavelength range of 400-410nm. In the formula, M is at least one or two metal elements selected from Li, Na, K, Ba, Ca, Mg, and Sr and 0.001
Abstract translation: 目的:提供一种用于UV LED和活性发光LCD的钨基红色荧光粉,其通过在钨基氧化物基质中掺杂铕和钐而具有优异的发光亮度。 组成:由式(M(WO 4)y:Euz,Sm x)表示的钨基红色磷光体是通过将氧化铕作为活化剂和氧化钐作为激发剂加入到钨基氧化物基体中而制备的。 该磷光体在400-410nm的波长范围内具有强吸收峰。 在该式中,M是选自Li,Na,K,Ba,Ca,Mg和Sr中的至少一种或两种金属元素,且0.001≤x≤0.3,0.5≤y≤3和0.01 < = z,其中; = 0.9。
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公开(公告)号:KR100424868B1
公开(公告)日:2004-03-27
申请号:KR1020020004542
申请日:2002-01-25
Applicant: 한국화학연구원
IPC: C09K11/74
Abstract: PURPOSE: A YRO4-based (R is As, Nb, P, V) blue fluorescent substance for a plasma display panel and its preparation method are provided, wherein the blue fluorescent substance has an excellent luminance efficiency at VUV and a good color purity and the luminance intensity of blue fluorescent substance can be controlled according to the composition of an activator and the composition. CONSTITUTION: The YRO4-based blue fluorescent substance is represented by Y(NbmP1-m-nVn)O4, wherein 0.02
Abstract translation: 目的:提供一种用于等离子体显示面板的YRO4基(R为As,Nb,P,V)蓝色荧光物质及其制备方法,其中蓝色荧光物质在VUV下具有优异的发光效率和良好的色纯度, 可以根据活化剂和组合物的组成来控制蓝色荧光物质的发光强度。 构成:基于YRO4的蓝色荧光物质由Y(NbmP1-m-nVn)O4表示,其中0.02
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公开(公告)号:KR100424867B1
公开(公告)日:2004-03-27
申请号:KR1020020004541
申请日:2002-01-25
Applicant: 한국화학연구원
IPC: C09K11/83
Abstract: PURPOSE: A YRO4-based (R is As, Nb, P, V) red fluorescent substance for a plasma display panel and its preparation method are provided, wherein the red fluorescent substance has an excellent luminance efficiency at VUV and a good color purity and the luminance intensity of red fluorescent substance can be controlled according to the composition of an activator and the composition. CONSTITUTION: The YRO4-based red fluorescent substance is represented by Y1-k(NbmP1-m-nVn)O4:Euk, wherein 0.04
Abstract translation: 目的:提供一种用于等离子体显示面板的YRO4基(R为As,Nb,P,V)红色荧光物质及其制备方法,其中红色荧光物质在VUV下具有优异的发光效率和良好的色纯度, 可以根据活化剂和组合物的组成来控制红色荧光物质的发光强度。 构成:基于YRO4的红色荧光物质由Y1-k(NbmP1-m-nVn)O4:Euk表示,其中0.04
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公开(公告)号:KR100424866B1
公开(公告)日:2004-03-27
申请号:KR1020010024034
申请日:2001-05-03
Applicant: 한국화학연구원
Abstract: PURPOSE: A strontium titanate fluorescent substance and its preparation method by the flame spray pyrolysis are provided, to obtain fluorescent substance which is not hollow, and has a nearly spherical shape, a uniform distribution, a perfect crystallinity without post-heating and a good light-emitting characteristic. CONSTITUTION: The strontium titanate fluorescent substance is represented by SrTiO3: PrxAlyGaz, wherein 0.0001
Abstract translation: 目的:提供钛酸锶荧光物质及其通过火焰喷射热解制备的方法,以获得非中空的荧光物质,并且具有接近球形的形状,均匀分布,没有后加热的完美结晶性和良好的光 发射特性。 构成:钛酸锶荧光物质由SrTiO3:PrxAlyGaz表示,其中0.0001≤x≤0.5,0≤y≤0.5和0≤z≤0.5。 该方法包括将Sr和Ti的前体以及活化剂Pr,Al和Ga的前体溶解到蒸馏水中以制备0.02-3M前体溶液的步骤; 将前体溶液注入气溶胶发生器以产生直径为1-100微米的液滴; 并使该液滴在膨胀火焰中干燥,热解,反应和结晶,得到荧光物质粉末。 膨胀火焰的温度优选为1,500-4,00℃。
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公开(公告)号:KR1020040005411A
公开(公告)日:2004-01-16
申请号:KR1020020039962
申请日:2002-07-10
Applicant: 한국화학연구원
IPC: B01J2/06
Abstract: PURPOSE: Provided is an ultrasonic spray pyrolysis apparatus for producing ultrafine particles, the apparatus being capable of producing ultrafine particles in large volumes under optimum condition. CONSTITUTION: The apparatus comprises a liquid droplet generator(1) for generating liquid droplets from a reaction solution, a plurality of liquid droplet sprayers(4), a reactor for drying the sprayed liquid droplet and performing pyrolysis to produce particles, and a collector for collecting the particles, wherein the liquid droplet generator(1) includes a plurality of ultrasonic oscillators, the reactor includes a plurality of reaction pipes(5) and the number of the liquid droplet sprayers(4) and the reaction pipes(5) is the same as the number of the ultrasonic oscillators.
Abstract translation: 目的:提供一种用于生产超细颗粒的超声波喷雾热解装置,该装置能够在最佳条件下大量生产超细颗粒。 构成:该装置包括用于从反应溶液产生液滴的液滴发生器(1),多个液滴喷雾器(4),用于干燥喷射的液滴并进行热解以产生颗粒的反应器,以及用于 收集颗粒,其中液滴发生器(1)包括多个超声波振荡器,反应器包括多个反应管(5),液滴喷雾器(4)和反应管(5)的数量为 与超声波振荡器的数量相同。
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