-
公开(公告)号：KR1020010086757A
公开(公告)日：2001-09-15
申请号：KR1020000010612
申请日：2000-03-03
Applicant: 한국과학기술연구원
Abstract: PURPOSE: A manufacturing method of a porous aluminum material is provided to obtain excellent sound absorbing and filtering characteristics. CONSTITUTION: A porous aluminum material is manufactured by impregnating aluminum powder or monofilament in a solution of a water bonding agent, removing surplus bonding agent solution by applying pressure to the aluminum, forming an aluminum piece and drying the aluminum piece. An aluminum material having structure of multi-layer porous inclination is formed by layering aluminum powder of different particle sizes in three layers. The aluminum material absorbs the sounds of high frequency, intermediate frequency and low frequency and filters the substances of different sizes. Moreover, the aluminum material is durable against excessive vibration according to the intensity over 0.6kg/cm2.
Abstract translation: 目的：提供多孔铝材料的制造方法，以获得优良的吸声和滤波特性。 构成：通过在铝粘合剂的溶液中浸渍铝粉或单丝来制造多孔铝材料，通过向铝施加压力除去多余的粘合剂溶液，形成铝片并干燥铝片。 具有多层多孔倾斜结构的铝材料通过在三层中分层不同粒径的铝粉而形成。 铝材吸收高频，中频，低频的声音，过滤不同尺寸的物质。 此外，铝材料根据强度超过0.6kg / cm2耐受过度振动。
-
公开(公告)号：KR1020010049338A
公开(公告)日：2001-06-15
申请号：KR1020000024456
申请日：2000-05-08
Applicant: 한국과학기술연구원
IPC: C01B21/06
CPC classification number: C01B21/064
Abstract: PURPOSE: A method for preparing boron nitride by using a self-propagating high-temperature synthesis is provided which simply prepares the boron nitride from relatively cheap boron oxide. CONSTITUTION: The method comprises steps of: (i) mixing boron oxide powder, a fixed quantity of magnesium powder and diluent powder; (ii) after putting the mixture in a self-propagating high-temperature synthesizing reactor and filling the reactor with nitrogen gas to make the pressure of the reactor become 50-80, igniting the reactor to cause a self-propagating high-temperature synthesizing reaction; and (iii) after cooling the reactor and removing the gas from the reactor, taking the reaction product out of the reactor.
Abstract translation: 目的：提供一种通过使用自传播的高温合成制备氮化硼的方法，其简单地从相对便宜的氧化硼制备氮化硼。 方法：该方法包括以下步骤：（i）混合氧化硼粉末，固定量的镁粉和稀释剂粉末; （ii）将混合物置于自蔓延高温合成反应器中并用氮气填充反应器使反应器的压力变为50-80，点燃反应器引起自蔓延的高温合成反应 ; 和（iii）冷却反应器并从反应器中除去气体后，将反应产物从反应器中取出。
-
公开(公告)号：KR1020000073464A
公开(公告)日：2000-12-05
申请号：KR1019990016772
申请日：1999-05-11
Applicant: 한국과학기술연구원
CPC classification number: C01B32/921 , C01B32/914 , C01B35/02
Abstract: PURPOSE: Carbide or boride ceramic powder by using self-propagating high-temperature synthesis(SHS) is provided to solve an unfinished reaction problem of SHS by keeping high pressure with 5 to 15 atmospheric pressure inside a reactor to restrain the pressure increase generated during the reaction. CONSTITUTION: A manufacturing method of carbide or boride ceramic powder by using self-propagating high-temperature synthesis(SHS) comprises the steps of the followings. Metal powder of the size of -50 mesh(below 300μm) and carbide(C) or boride(B) powder of -100 mesh(below 150μm) are mixed. The mixture is arranged in the SHS and the air in a reactor is eliminated by repeating letting out inactive gas after filling water pressure in the reactor. Inactive gas is applied to be the inner pressure of 5-15 atmospheric pressure and ignited. A product is crushed after cooling the reactor. The inactive gas is argon and the mixing process is performed by dry ball milling using a zirconia ball. Magnesium or aluminum powder of -50 mesh(300μm) eliminates a first oxide starting raw material of the size of -60 mesh(below 270μm), a second raw material and generated oxygen.
Abstract translation: 目的：通过使用自蔓延高温合成（SHS）提供硬质合金或硼化物陶瓷粉末，以通过在反应器内保持5至15个大气压的高压以抑制在该反应器内产生的压力增加来解决SHS未完成的反应问题 反应。 构成：通过使用自蔓延高温合成（SHS）的碳化物或硼化物陶瓷粉末的制造方法包括以下步骤。 将大小为-50目（300μm以下）的金属粉末和-100目（150μm以下）的碳化物（C）或硼化物（B）粉末混合。 将混合物配置在SHS中，并且通过在反应器中填充水压之后重复放出惰性气体来消除反应器中的空气。 非活性气体被应用为5-15大气压的内部压力并被点燃。 冷却反应器后将产物压碎。 惰性气体是氩气，混合过程通过使用氧化锆球的干球磨进行。 -50目（300μm）的镁或铝粉末消除了尺寸为-60目（低于270μm）的第一氧化物起始原料，第二原料和产生的氧。
-
公开(公告)号：KR1020130112979A
公开(公告)日：2013-10-15
申请号：KR1020120033223
申请日：2012-03-30
Applicant: 한국과학기술연구원
IPC: C04B35/10 , C04B35/565 , C04B35/657 , C04B35/624
CPC classification number: C04B35/565 , C04B35/1015 , C04B35/103 , C04B35/105 , C04B35/106 , C04B35/6263 , C04B35/6303 , C04B35/63424 , C04B35/63488 , C04B35/6365 , C04B35/66 , C04B2235/3206 , C04B2235/3215 , C04B2235/3217 , C04B2235/3218 , C04B2235/3222 , C04B2235/3241 , C04B2235/3244 , C04B2235/3826 , C04B2235/5427 , C04B2235/5436 , C04B2235/5445 , C04B2235/5472 , C04B2235/61 , C04B2235/6562 , C04B2235/6565 , C04B2235/77 , C04B2235/96
Abstract: PURPOSE: A no cement high intensity amorphous refractory material is provided to have the task mobility, the excellent drying and sintering intensity by including a flameproofing agent mixture, an alumina sol, and a barium aluminate, and a dispersing agent. CONSTITUTION: A no cement high intensity amorphous refractory material comprises a flameproofing agent mixture which includes Al2O3 and SiC, an alumina sol, a barium aluminate, and the dispersing agent. The alumina sol is manufactured by hydrolyzing and polymerizing of a boehmite slurry. 0.1-10 parts by weight of the alumina sol is included based on amount of alumina about 100.0 of the flameproofing agent mixture. The barium aluminate is the barium aluminate or a precursor thereof which is synthesized with solid phase method by having barium carbonate and alumina as main component. 0.1-10 parts by weight of the barium aluminate is included base on 100.0 of the flameproofing agent mixture. The dispersing agent is selected from polycarboxylate ether group and polyacryl group. 0.02-1 parts by weight of the dispersing agent is included base on 100.0 of the flameproofing agent mixture.
Abstract translation: 目的：通过包括防火剂混合物，氧化铝溶胶和铝酸钡以及分散剂，提供无水泥高强度无定形耐火材料以具有任务流动性，优异的干燥和烧结强度。 构成：无水泥高强度无定形耐火材料包括包括Al 2 O 3和SiC的防火剂混合物，氧化铝溶胶，铝酸钡和分散剂。 氧化铝溶胶是通过水解和聚合勃姆石浆而制成的。 基于约100.0的防火剂混合物的氧化铝量，包括0.1-10重量份的氧化铝溶胶。 铝酸钡是通过以碳酸钡和氧化铝为主要成分，以固相法合成的铝酸钡或其前体。 在100.0的防火剂混合物中包含0.1-10重量份的铝酸钡。 分散剂选自聚羧酸酯醚基和聚丙烯酸酯基。 将0.02-1份分散剂包括在100.0的防火剂混合物中。
-
公开(公告)号：KR101141536B1
公开(公告)日：2012-05-04
申请号：KR1020100041416
申请日：2010-05-03
Applicant: 한국과학기술연구원
Abstract: 본 발명은 혼합 인듐주석 산화물 졸의 제조방법에 관한 것으로서, 더욱 상세하게는 (a) 프로피온산과 부탄올 혼합용매에 인듐 화합물 및 염화주석 화합물을 분산시키고 가열하여 제1 인듐주석 산화물 졸을 제조하는 단계, (b) 디메틸포름아미드와 부탄올 혼합용매에 인듐 화합물 및 염화주석 화합물을 분산시키고 질산을 첨가한 후, 가열 및 급속 냉각하여 제2 인듐주석 산화물 졸을 제조하는 단계 및 (c) 상기 제2 인듐주석 산화물 졸에 상기 제1 인듐주석 산화물 졸을 첨가하면서 교반하여 혼합 인듐주석 산화물 졸을 생성시키는 단계를 포함하는 혼합 인듐주석 산화물 졸의 제조방법에 관한 것이다.
또한, 본 발명은 결정성 인듐주석 산화물 막의 제조방법으로서 본 발명의 혼합 인듐주석 산화물 졸의 제조방법에 의하여 제조된 혼합 인듐주석 산화물 졸을 기판 또는 분말에 코팅하고 열처리하는 단계를 포함하는 결정성 인듐주석 산화물 막의 제조방법에 관한 것이다.-
Patent Agency Ranking
公开(公告)号：KR100828951B1
公开(公告)日：2008-05-13
申请号：KR1020060106531
申请日：2006-10-31
Applicant: 한국과학기술연구원
Abstract: 본 발명의 금속기판에 γ-알루미나 담체를 코팅하는 방법에 관한 것으로, 보헤마이트 분말이 분산된 용액에 질산을 첨가하여 보헤마이트 졸을 제조하고, 상기 보헤마이트 졸에 γ-알루미나, 유기바인더, 결합제(coupling agent)를 첨가하고 혼합하여 슬러리를 제조하며, 상기 슬러리를 금속기판에 도포하고, 상기 슬러리가 도포된 금속기판을 건조한 후 열처리하는 것을 포함하는 것을 특징으로 한다. 이에 따라, 금속기판과 알루미나 담체와의 접착성이 매우 향상된다.
-
公开(公告)号：KR100760238B1
公开(公告)日：2007-10-04
申请号：KR1020060109829
申请日：2006-11-08
Applicant: 한국과학기술연구원
Inventor： 임경란
Abstract: An economic process for preparing indium tin oxide sol is provided to improve adhesive property and stability in air of the sol used as liquid crystal display element and the like. A process for preparing indium tin oxide sol comprises steps of: dispersing indium salt compound, such as indium acetate or indium formate and tin tetrachloride in mixed solution of butanol and dimethylformamide(DMF) at the temperature ranging from the ambient temperature to 60deg.C for 10 to 60 minutes; adding acid catalyst to the slurry and heat-reacting to reach sol state; and quenching the sol at the ambient temperature. The atomic ratio, indium:tin is maintained to be 8.5:1 to 9.5:1 in the process.
Abstract translation: 提供了一种制备氧化铟锡溶胶的经济方法，以提高用作液晶显示元件等的溶胶的空气中的粘合性能和稳定性。 制备铟锡氧化物溶胶的方法包括以下步骤：在环境温度至60℃的温度范围内，将铟盐化合物如乙酸铟或甲酸铟和四氯化锡分散在丁醇和二甲基甲酰胺（DMF）的混合溶液中， 10至60分钟; 向浆料中加入酸催化剂，并加热反应达到溶胶状态; 并在环境温度下淬火溶胶。 在该过程中，原子比铟：锡维持在8.5:1至9.5:1。
-
公开(公告)号：KR100560585B1
公开(公告)日：2006-03-15
申请号：KR1020030074632
申请日：2003-10-24
Applicant: 한국과학기술연구원
IPC: C09K11/71
Abstract: 본 발명은 용융제를 사용하지 않으면서 환원분위기에서 열처리하여 준구형의 청색 BAM계 형광체를 제조하는 방법에 관한 것이다. 구체적으로, 본 발명은 Ba 화합물, 알루미나, Mg 화합물 및 Eu
2 O
3 의 형광 원료 물질을 혼합하는 공정, 이 혼합물을 하소하여 BAM 전구체를 제조하는 공정, 및 상기 전구체를 질소와 수소로 이루어진 혼합기체 분위기에서 열처리하는 공정을 포함하는, 하기 화학식 1의 청색 BAM 형광체의 제조 방법을 제공한다.
Ba
(1-x) MgAl
y O
z : xEu
2+
상기 식에서, x는 0.02 내지 0.25이고, y가 10일 경우, z는 17이고, y가 14일 경우, z는 23이다.
청색 형광체, 준구형, BAM, 표면개질, MgO 졸-
公开(公告)号：KR1020050039204A
公开(公告)日：2005-04-29
申请号：KR1020030074632
申请日：2003-10-24
Applicant: 한국과학기술연구원
IPC: C09K11/71
CPC classification number: C09K11/7734 , C01P2004/03 , C01P2004/60 , C04B35/6267 , C04B2235/3217 , C04B2235/3224 , C09K11/7731 , Y02B20/181
Abstract: 본 발명은 용융제를 사용하지 않으면서 환원분위기에서 열처리하여 준구형의 청색 BAM계 형광체를 제조하는 방법에 관한 것이다. 구체적으로, 본 발명은 Ba 화합물, 알루미나, Mg 화합물 및 Eu
2 O
3 의 형광 원료 물질을 혼합하는 공정, 이 혼합물을 하소하여 BAM 전구체를 제조하는 공정, 및 상기 전구체를 질소와 수소로 이루어진 혼합기체 분위기에서 열처리하는 공정을 포함하는, 하기 화학식 1의 청색 BAM 형광체의 제조 방법을 제공한다.
Ba
(1-x) MgAl
y O
z : xEu
2+
상기 식에서, x는 0.02 내지 0.25이고, y가 10일 경우, z는 17이고, y가 14일 경우, z는 23이다.-
公开(公告)号：KR1020030046549A
公开(公告)日：2003-06-18
申请号：KR1020010075959
申请日：2001-12-03
Applicant: 한국과학기술연구원
IPC: C01G1/02
CPC classification number: C01G1/02 , C01P2002/34
Abstract: PURPOSE: A method for preparing a composite metal oxide powder is provided, to enable a calcination process for the formation of phase to be omitted or the temperature to be lowered largely by improving the easiness of solid solution reaction in heat treatment. CONSTITUTION: The method comprises the steps of mixing at least one metal oxide powder with a low reactivity in the quantity smaller than the stoichiometrically necessary amount in a solvent to prepare slurry; adding a metal salt or a metal alkoxide to the slurry in the quantity satisfying the stoichiometrically necessary amount; adding an excess amount of water to hydrolyze the metal salt or the metal alkoxide; and removing the solvent, and drying and heating the remaining one. Preferably the amount of the metal salt or the metal alkoxide added to the slurry is 5-10 wt% of the stoichiometrically necessary amount. Preferably the metal salt is a metal nitrate salt; and the metal alkoxide is propoxide, isopropoxide, isobutoxide or n-butoxide of metal. Preferably the composite metal oxide powder is Pb(Zr(1-w), Tiw)O3 (0
Abstract translation: 目的：提供一种复合金属氧化物粉末的制备方法，通过提高热处理中的固溶反应的容易性，可以进行能够省略相的形成的煅烧工序或降低温度的方法。 方案：该方法包括以下步骤：在溶剂中混合少于化学计量所需量的低反应性的至少一种金属氧化物粉末以制备浆料; 以满足化学计量要求量的量向浆料中加入金属盐或金属醇盐; 加入过量的水以水解金属盐或金属醇盐; 除去溶剂，干燥并加热剩余的溶剂。 优选地，添加到浆料中的金属盐或金属醇盐的量为化学计量所需量的5-10重量％。 优选地，金属盐是金属硝酸盐; 金属醇盐是金属的丙氧化物，异丙醇盐，异丁醇盐或正丁醇盐。 优选复合金属氧化物粉末是Pb（Zr（1-w），Tiw）O 3（0
-
-
-
-
-
-
-
-
-
Search Results
65
records
(took 0.03 seconds)
