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公开(公告)号：KR1020090006895A
公开(公告)日：2009-01-16
申请号：KR1020070069779
申请日：2007-07-11
Applicant: 한국과학기술연구원
CPC classification number: H01M4/485 , H01M4/48 , H01M10/0525 , H01M2004/021 , H01M2004/027 , Y02E60/122 , Y02E60/13 , Y02P70/54
Abstract: A calcium-cobalt oxide anode material is provided to ensure capacity higher than that of a conventional carbon material, stable cycle property, and excellent lithium ion conductivity. A calcium-cobalt oxide anode material has a composition of the chemical formula 1: [(Ca_(3-x).A_x)(Co_(4-y).B_y)O_9. In the chemical formula 1, A is an inert element selected from Bi, Gd and Na; and B is the transition elements selected from Fe, Ni, Mn and Cu, and 0
Abstract translation: 提供了一种钴 - 钴氧化物负极材料，以确保比常规碳材料更高的容量，稳定的循环性能和优异的锂离子传导性。 钴 - 钴氧化物阳极材料具有化学式1的组成：[（Ca_（3-x）.A_x）（Co_（4-y）.B_y）O_9。 在化学式1中，A是选自Bi，Gd和Na的惰性元素; 并且B是选自Fe，Ni，Mn和Cu的过渡元素，0 <= x <=1,0,0≤y≤1。
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公开(公告)号：KR100653425B1
公开(公告)日：2006-12-04
申请号：KR1020050095718
申请日：2005-10-11
Abstract: Provided is a ferrite-polymer nanocomposite, which has high permeability and low loss characteristics at the high-frequency zone and is applicable to electronic equipment such as high-frequency layered chip inductors, wire-wound inductors, transformers, converters, etc. The ferrite-polymer nanocomposite is obtained by dispersing conglomerate of soft magnetic ferrite nanopowder in polymer matrix. The soft magnetic ferrite is any one selected from Mn-Zn, Ni-Zn, Ni-Cu-Zn, Ni-Cu-Co-Zn, Ni-Co, Mg-Zn, Mg-Mn-Zn, Cu-Zn-based spinel ferrites, cobalt-substituted Y type and Z type hexagonal ferrites, and a mixture of two or more thereof. The polymer is any one selected from a thermoplastic resin, a thermosetting resin, and a mixture of two or more thereof. The thermoplastic resin is polyphenylene sulfide, polyamide, polyethylene, polyimide, polysulfone, polyetherether ketone, polystyrene, etc. The thermosetting resin is epoxy resin, phenolic resin, polyimide, diarylphthalate resin, etc.
Abstract translation: 本发明提供一种铁氧体 - 聚合物纳米复合材料，其在高频区域具有高导磁率和低损耗特性，并且适用于诸如高频分层片式电感器，绕线电感器，变压器，转换器等电子设备。铁氧体 聚合物纳米复合材料是通过将软磁铁氧体纳米粉末的聚集体分散在聚合物基体中而获得的。 软磁铁氧体是选自Mn-Zn，Ni-Zn，Ni-Cu-Zn，Ni-Cu-Co-Zn，Ni-Co，Mg-Zn，Mg-Mn-Zn，Cu-Zn基的任意一种 尖晶石铁氧体，钴取代的Y型和Z型六方晶系铁氧体，以及它们中两种或更多种的混合物。 聚合物是选自热塑性树脂，热固性树脂及其两种或更多种的混合物中的任何一种。 热塑性树脂为聚苯硫醚，聚酰胺，聚乙烯，聚酰亚胺，聚砜，聚醚醚酮，聚苯乙烯等。热固性树脂为环氧树脂，酚醛树脂，聚酰亚胺，邻苯二甲酸二芳基酯树脂等。
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公开(公告)号：KR100479688B1
公开(公告)日：2005-03-30
申请号：KR1020020032062
申请日：2002-06-07
Applicant: 한국과학기술연구원
CPC classification number: C03C8/14 , C03C14/004
Abstract: 본 발명은 마이크로파 유전 특성이 우수하고 950℃ 부근의 낮은 온도 범위에서 소성이 가능한 저유전율의 붕화규소계 세라믹 조성물 및 그 제조방법에 관한 것이다. 본 발명의 조성물은 40 ~ 60%의 비정질 붕화규소 유리와 40 ~ 60%의 충진제로 구성되어지며, 가격이 저렴한 Ag 전극과 함께 저온소성 다층기판의 저유전율층에 사용될 수 있다.
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公开(公告)号：KR100390468B1
公开(公告)日：2003-07-04
申请号：KR1020000054228
申请日：2000-09-15
Applicant: 한국과학기술연구원
IPC: C04B35/468 , H01B3/12 , H01G4/12
Abstract: PURPOSE: Provided is a preparation method of ultrafine and high density dielectric ceramics at low temperature by adding rare earth oxide and Cu2O to BaTiO3 and sintering in an oxygen atmosphere. CONSTITUTION: The preparation method is as follows: wet ball-milling raw material powders(>99.9% of purity), BaTiO3, Cu2O and Re2O3, for a slurry of BaTiO3 + xCu2O + yRE2O3, where 0.00
Abstract translation: 目的：提供一种在低温下通过向BaTiO 3中加入稀土氧化物和Cu 2 O并在氧气氛中烧结来制备超细和高密度介电陶瓷的方法。 组成：制备方法如下：对于BaTiO 3 + xCu 2 O + yRE 2 O 3的浆料，湿球磨原料粉末（> 99.9％纯度），BaTiO 3，Cu 2 O和Re 2 O 3， x≤0.05，0.00 < y≤0.05，RE是选自La，Pr，Nd，Sm，Eu等中的至少一种稀土元素; 在空气中900-1100℃干燥和煅烧; 成型; 在O2气氛中在1100℃下烧结。 所得到的基于BaTiO 3的电介质陶瓷具有90-120nm的直径和5.3-5.9g / cm 3的密度。
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公开(公告)号：KR100390464B1
公开(公告)日：2003-07-04
申请号：KR1020000056623
申请日：2000-09-27
Applicant: 한국과학기술연구원
Abstract: PURPOSE: Provided is a dielectric ceramics composition comprising Pb(Fe1/2Nb1/2)O3(PFN) including rare earth metal oxide(RE2O3) as a main raw material, and CuO as an additive. The composition has ultrafine particles(
Abstract translation: 目的：提供一种介电陶瓷组合物，其包含以稀土金属氧化物（RE2O3）为主要原料的Pb（Fe1 / 2Nb1 / 2）O3（PFN）和作为添加剂的CuO。 该组合物具有超细颗粒（≤0.8微米）并在低温（1100℃）下烧结。 本发明的电介质陶瓷组合物通过以下步骤制备：湿式球磨PbO，Fe 2 O 3，Nb 2 O 5，RE 2 O 3作为晶粒生长抑制剂，以及CuO作为烧结助剂，其组成式为Pb（Fe 1 / 2Nb 1 / 2）O 3 + xRE 2 O 3 + yCuO，其中0.00
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Patent Agency Ranking
公开(公告)号：KR100333498B1
公开(公告)日：2002-04-25
申请号：KR1019990047982
申请日：1999-11-01
Applicant: 한국과학기술연구원
IPC: H01B3/12
Abstract: 본발명은저온소성용초미립유전체세라믹조성물에관한것으로, 0 ~ 5 mole% 의 CuO를조합한 BaTiO를주조성으로하고, 특히양호한소결성을가지는 3 mole% 의 CuO와의조합에대해첨가제로서 MO가 0 ~ 5 mole% 로구성되는것을특징으로한다. 여기서 M은 La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er 및 Yb 중에서선택되는어느하나이상의성분이다. 본발명에따르면 1100℃의 저온에서평균입경이 0.2㎛이하인저온소성용초미립 BaTiO계유전체세라믹스를얻을수 있다.
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公开(公告)号：KR1020020027124A
公开(公告)日：2002-04-13
申请号：KR1020000059081
申请日：2000-10-07
Applicant: 한국과학기술연구원
IPC: H01B3/12
Abstract: PURPOSE: Provided are a complex of ferroelectrics and ferromagnetics which has both ferroelectricity of the ferroelectrics and ferromagnetism of the ferromagnetics and can be used as memory elements, and etc, and a method for producing the same. CONSTITUTION: The method comprises the steps of (i) synthesizing ferroelectric ceramics, (ii) crushing the ferroelectric ceramics into the powder, (iii) synthesizing ferromagnetic ceramics, (iv) crushing the ferromagnetic ceramics into the powder, (v) mixing the ferroelectric ceramics power and the ferromagnetic ceramics powder, and (vi) compression molding the mixture.
Abstract translation: 目的：提供铁电体和铁磁体的复合体，其具有铁电体的铁电性和铁磁体的铁磁性，并且可以用作记忆元素等，及其制造方法。 构成：该方法包括以下步骤：（i）合成铁电陶瓷，（ii）将铁电陶瓷粉碎成粉末，（iii）合成铁磁性陶瓷，（iv）将铁磁性陶瓷粉碎成粉末;（v）将铁电体 陶瓷电源和铁磁陶瓷粉末，（vi）压缩成型混合物。
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公开(公告)号：KR1020020027116A
公开(公告)日：2002-04-13
申请号：KR1020000058962
申请日：2000-10-06
Applicant: 한국과학기술연구원
IPC: H01G4/33
CPC classification number: H01G4/1227 , H01G4/30
Abstract: PURPOSE: A method for manufacturing a dielectric thick film by using a polymeric material is provided to reduce the manufacturing cost of a stacked ceramic condenser by producing a thick film of dielectric ceramic powders and polymeric materials without employing the sintering process. CONSTITUTION: A polymeric material is melted. A dielectric ceramic powder is added to the melted polymeric material and agitated to be mixed, uniformly. The mixture is formed on a substrate as a thick film by using the spin coating process. The substrate is a copper substrate. The polymeric material is made of a polypropylene having a melting point of about 157°C, the density of about 0.90g/cm¬3, and a molecular weight of about 12,000. A melting temperature of the polypropylene is 180-220°C. The dielectric ceramic powder is ultrafine BaTiO3 powder. An additive amount of the dielectric ceramic powder is 10-90 wt.%.
Abstract translation: 目的：提供一种通过使用聚合物材料制造电介质厚膜的方法，通过在不使用烧结工艺的情况下制造介电陶瓷粉末和聚合材料的厚膜来降低层叠陶瓷冷凝器的制造成本。 构成：聚合材料熔化。 将电介质陶瓷粉末加入到熔融的聚合物材料中并搅拌均匀混合。 该混合物通过使用旋涂法在作为厚膜的基板上形成。 基板是铜基板。 聚合物材料由熔点约157℃，密度约0.90g / cm 3，分子量约12,000的聚丙烯制成。 聚丙烯的熔融温度为180-220℃。 电介质陶瓷粉末是超细BaTiO3粉末。 电介质陶瓷粉末的添加量为10-90重量％。
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公开(公告)号：KR1020020020455A
公开(公告)日：2002-03-15
申请号：KR1020000053608
申请日：2000-09-08
Applicant: 한국과학기술연구원
IPC: C01G23/04
CPC classification number: C01G23/006 , C01P2004/61
Abstract: PURPOSE: A method for fabricating easily sinterable ultrafine BaTiO3 particle having a mean particle size of less than 1μm is provided, which is characterized in that after pretreatment hydrothermal reaction of hydrated TiO2 gel and Ba(OH)2·8H2O at a temperature range of lower than hydrothermal reaction by 40 to 60deg.C, main hydrothermal reaction is performed. CONSTITUTION: The fabrication method of easily sinterable ultrafine BaTiO3 particle includes the steps of (i) reacting aqueous solution of TiCl4 with NH4OH to prepare TiO2·xH2O gel; (ii) preparation of mixed slurry of TiO2·xH2O gel and (Ba(OH)2· 8H2O)b wherein Ba/Ti of the mixed slurry is 1.2; (iii) pretreatment of the mixed slurry of TiO2·xH2O gel and (Ba(OH)2·8H2O) in a hydrothermal reactor at a temperature range of 140 to 160deg.C; (iv) performing hydrothermal reaction at a temperature range of 180 to 220deg.C; and (v) drying the resultant from the 4th step at 100deg.C for 24 hours to obtain ultrafine BaTiO3 particle.
Abstract translation: 目的：提供一种平均粒径小于1μm的容易烧结的超细BaTiO3颗粒的制备方法，其特征在于水合TiO 2凝胶和Ba（OH）2·8H 2 O在较低温度范围内的水热反应 比水热反应40〜60℃，进行主水热反应。 构成：容易烧结的超细BaTiO3颗粒的制造方法包括以下步骤：（i）使TiCl4的水溶液与NH 4 OH反应制备TiO 2·xH 2 O凝胶; （ii）制备TiO 2·xH 2 O凝胶和（Ba（OH）2·8H 2 O）b的混合浆料，其中混合浆料的Ba / Ti为1.2; （iii）在140〜160℃的温度范围内，在水热反应器中预处理TiO 2·xH 2 O凝胶和（Ba（OH）2·8H 2 O）的混合浆料; （iv）在180-220℃的温度范围内进行水热反应; 和（v）将第四步骤的所得物在100℃下干燥24小时，得到超细BaTiO 3颗粒。
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公开(公告)号：KR1020010068944A
公开(公告)日：2001-07-23
申请号：KR1020000001094
申请日：2000-01-11
Applicant: 한국과학기술연구원
IPC: C04B35/468 , H01G4/12
CPC classification number: H01B3/12 , C04B35/4504 , C04B35/468
Abstract: PURPOSE: A BaTiO3-based dielectric ceramics composition is provided to produce ultra-fine (less than 0.1micrometer) dielectric ceramics by low temperature sintering(1100deg.C) by adding CuO and M2O3(M=rare earth element such as La, Pr Nd, Sm, Yb, etc.) as a sintering aid and grain growth inhibitor, respectively. CONSTITUTION: The composition is as follows: BaTiO3 + xCuO + yM2O3, where 0
Abstract translation: 目的：提供一种BaTiO3基介电陶瓷组合物，通过添加CuO和M2O3（M =稀土元素如La，Pr Nd），通过低温烧结（1100℃）制备超细（小于0.1微米）的电介质陶瓷 ，Sm，Yb等）作为烧结助剂和晶粒生长抑制剂。 组成：组成如下：BaTiO3 + xCuO + yM2O3，其中0
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