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公开(公告)号:KR1020020027123A
公开(公告)日:2002-04-13
申请号:KR1020000059080
申请日:2000-10-07
Applicant: 한국과학기술연구원
IPC: C04B35/634 , C04B35/01 , H01G4/12
CPC classification number: C04B35/634 , C04B35/453 , C04B35/6261 , C04B2111/90 , H01B3/12 , H01G4/12 , H01G4/30
Abstract: PURPOSE: Provided is a preparation method of relaxer ferroelectric ceramic thick films for multi-layer ceramic capacitors by spreading ferroelectric ceramic powder on a high molecular matrix homogeneously without sintering. CONSTITUTION: The preparation method comprises the steps of: grinding Pb-based relaxer ferroelectric ceramics, Pb(B'2+1/3 B''5+2/3)O3 system or Pb(B'3+1/2 B''5+1/2)O3 system, where B'2+ is one of Mg2+, Ni2+, Zn2+ and Cd2+, B''5+ is one of Nb5+ and Ta5+, and B'3+ is one of Fe3+, Sc3+ and In3+; melting a high molecular material, polypropylene less than 10000 in molecular weight, at 180-220deg.C; adding relaxer ferroelectric ceramic powder to melted high molecular material, and mixing in a rate of 20-40rpm for 20-40min for a homogeneous mixture; forming a thick film by spin-coating or extruding the mixture on a substrate, Cu-substrate, where the dropping amounts of the mixture are 30-60drops in a rate of 1-3drops/min, and the substrate is rotated in a rate of 300-500rpm, in the spin coating. The resultant ferroelectric thick films for multi-layer ceramic capacitors prepared without sintering have 1.32-2.90micrometer of thickness and 78-1905 of dielectric constant(at 25deg.C).
Abstract translation: 目的:提供一种用于多层陶瓷电容器的松弛铁电陶瓷厚膜的制备方法,通过在高分子量基体上均匀地铺展铁电陶瓷粉末而不烧结。 制备方法包括以下步骤:研磨Pb基松弛剂铁电陶瓷,Pb(B'2 + 1 / 3B''5 + 2/3)O3体系或Pb(B'3 + 1/2 B' '5 + 1/2)O3体系,其中B'2 +是Mg2 +,Ni2 +,Zn2 +和Cd2 +之一,B''5 +是Nb5 +和Ta5 +之一,B'3 +是Fe3 +,Sc3 +和 IN3 +; 熔化高分子材料,分子量小于10000的聚丙烯,180-220℃; 将松弛铁电陶瓷粉末加入到熔融的高分子材料中,并以20-40rpm的速率混合20-40分钟,得到均匀的混合物; 通过将基板上的混合物旋涂或挤出来形成厚膜,其中以1-3滴/分钟的速率将混合物的滴加量为30-60滴,并将基板以 300-500rpm,在旋涂中。 所制备的用于不烧结的多层陶瓷电容器的铁电厚膜的厚度为1.32-2.90微米,介电常数为78-1905(25℃)。
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公开(公告)号:KR1020020022386A
公开(公告)日:2002-03-27
申请号:KR1020000055161
申请日:2000-09-20
Applicant: 한국과학기술연구원
IPC: C04B35/468 , H01B3/12 , H01G4/12
CPC classification number: C04B35/468 , C04B35/6303 , C04B35/64 , C04B2111/00844 , C04B2111/90 , C04B2235/3236 , H01B3/12 , H01G4/1227
Abstract: PURPOSE: Provided is a preparation method of ultrafine and high density dielectric ceramics at low temperature by adding rare earth oxide and Cu3TiO4 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, Cu3TiO4 and RE2O3, for a slurry of BaTiO3 + xCu3TiO4 + yRE2O3, where 0.00
Abstract translation: 目的:通过向BaTiO3中添加稀土氧化物和Cu3TiO4并在氧气氛中烧结,提供了一种低温高密度电介质陶瓷的制备方法。 制备方法:制备方法如下:BaTiO3 + xCu3TiO4 + yRE2O3的浆液中湿球磨原料粉(纯度99.9%),BaTiO3,Cu3TiO4和RE2O3,其中0.00
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公开(公告)号:KR1020020021498A
公开(公告)日:2002-03-21
申请号:KR1020000054228
申请日:2000-09-15
Applicant: 한국과학기술연구원
IPC: C04B35/468 , H01B3/12 , H01G4/12
CPC classification number: C04B35/468 , C04B35/6303 , C04B35/64 , C04B2111/00844 , C04B2111/90 , C04B2235/3236 , H01B3/12 , H01G4/1227
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:通过向BaTiO3中加入稀土氧化物和Cu2O并在氧气氛中烧结,提供了一种低温高密度电介质陶瓷的制备方法。 制备方法:制备方法如下:BaTiO3 + xCu2O + yRE2O3的浆料为湿球磨原料粉(纯度99.9%),BaTiO 3,Cu 2 O和Re 2 O 3,其中0.00
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公开(公告)号:KR1020010044920A
公开(公告)日:2001-06-05
申请号:KR1019990047980
申请日:1999-11-01
Applicant: 한국과학기술연구원
IPC: H01B3/12
Abstract: PURPOSE: A ultrafine dielectric ceramic composition for a low temperature plasticity is provided to achieve a low temperature plasticity and an ultrafine BaTiO3 dielectric ceramic composition by adding a proper sintering material to the BaTiO3. CONSTITUTION: A ultrafine dielectric ceramic composition for a low temperature plasticity is made based on the following formula BaTiO3 + xCu3TiO4. Here, x is ranging from 0.00 to 0.05. M2O3 is added to the composition as much as 0 to 5 mole. Here, M is one or more selected from the group consisting of La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er and Yb.
Abstract translation: 目的:提供一种低温可塑性的超细电介质陶瓷组合物,以通过向BaTiO3中加入适当的烧结材料来实现低温塑性和超细BaTiO3电介质陶瓷组合物。 构成:基于下列公式BaTiO3 + xCu3TiO4制造低温可塑性的超细电介质陶瓷组合物。 这里,x为0.00〜0.05。 向组合物中加入多至0至5摩尔的M2O3。 这里,M是选自La,Pr,Nd,Sm,Eu,Gd,Tb,Dy,Ho,Er和Yb中的一种或多种。
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公开(公告)号:KR101886036B1
公开(公告)日:2018-08-07
申请号:KR1020160106420
申请日:2016-08-22
Applicant: 한국과학기술연구원
IPC: H01M10/0562 , H01M10/052
CPC classification number: H01M10/0562 , C01B17/20 , C01B17/22 , H01M2300/0068
Abstract: 본발명은대기노출에안정한황화물계고체전해질을제조하는방법에관한것이다. 구체적으로는반응가능한가스처리를통해황화물계고체전해질입자의표면으로안정층을형성하는것을일 기술적특징으로한다.이에따라상기안정층이황화물계고체전해질입자대신에대기중의수분등과산화반응또는환원반응을일으키므로대기안정성이우수한황화물계고체전해질을수득할수 있다.
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公开(公告)号:KR101862784B1
公开(公告)日:2018-05-31
申请号:KR1020160051212
申请日:2016-04-27
Applicant: 한국과학기술연구원
IPC: H01M10/0562 , H01M10/052
CPC classification number: H01M10/0562 , C01B17/22 , H01B1/10 , H01M10/0525 , H01M2300/0068
Abstract: 본발명은리튬이온전도성황화물의리튬(lithium, Li), 인(phosphorus, P), 황(sulfur, S) 등의원소비율을자유롭게조절할수 있는제조방법에관한것으로써, 이를통해종래와차별화되는결정구조및 음이온클러스터분포를갖는리튬이온전도성황화물을얻을수 있다.
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公开(公告)号:KR1020170122375A
公开(公告)日:2017-11-06
申请号:KR1020160051212
申请日:2016-04-27
Applicant: 한국과학기술연구원
IPC: H01M10/0562 , H01M10/052
CPC classification number: H01M10/0562 , C01B17/22 , H01B1/10 , H01M10/0525 , H01M2300/0068 , H01M10/052 , Y02E60/122
Abstract: 본발명은리튬이온전도성황화물의리튬(lithium, Li), 인(phosphorus, P), 황(sulfur, S) 등의원소비율을자유롭게조절할수 있는제조방법에관한것으로써, 이를통해종래와차별화되는결정구조및 음이온클러스터분포를갖는리튬이온전도성황화물을얻을수 있다.
Abstract translation: 本发明涉及能够自由控制锂,Li,磷,硫,硫等锂离子传导性硫化物的消耗速度的制造方法, 可以获得结构和阴离子簇分布。
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公开(公告)号:KR101685386B1
公开(公告)日:2016-12-13
申请号:KR1020140092601
申请日:2014-07-22
Applicant: 한국과학기술연구원
CPC classification number: Y02P70/56
Abstract: 본발명은소결수축률이큰 연료극기판층과층간응력차이를완화시켜주는혼합층을포함하는적층체를동시소결하여전해질층의치밀도를향상시킨것을특징으로하는연료극지지형고체산화물셀 및그 제조방법에관한것으로서, 본발명에따르면, 저온에서동시에소결이이루어져단전지제조공정을단순화시킬수 있고, 연료극조성의유연성을확보하여수축률이높은연료극기판의사용이가능하도록함으로써, 전해질층의치밀도를향상시킬수 있으며, 혼합층의도입으로계면의열응력집중현상을완화시켜동시소결후 셀의휨현상, 균열및 셀의파괴를방지할수 있으므로, 전기화학적성능향상및 장기안정성이확보된연료극지지형고체산화물셀의제공및 상용화를가능하게한다.
Abstract translation: 本发明涉及通过共烧烧包括具有高烧结收缩率的阳极基底层和减轻层之间的应力差的混合层的层叠体来提高电解质层的密度的阳极支撑固体氧化物电池,以及 其制造方法。 根据本发明,由于在低温下进行共烧结,所以能够简化端电池制造工序,通过确保阳极组成的柔软性,可以使用具有高收缩率的阳极基板,从而增加 电解质层的密度。 通过引入混合层可以缓解界面的热应力集中现象。 因此,可以防止在共烧结之后电池弯曲,并且也避免了电池的破裂和断裂。 因此,可提供改善电化学性能并确保长期稳定性的负极固体氧化物电池的提供和商业化。
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