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1.发明专利
公开(公告)号：KR102222606B1
公开(公告)日：2021-03-05
申请号：KR1020150188191A
申请日：2015-12-29
Applicant: 삼성전기주식회사
Abstract: 본 개시는 유전체 조성물 및 이를 포함하는 적층 세라믹 커패시터에 관한 것으로, 본 개시에 따른 유전체 조성물은 모재 주성분 및 부성분을 포함하며, 모재 주성분은 ABO
3 (A는 Ba, Ca 및 Sr 중 적어도 하나이고 B는 Ti, Zr 및 Hf 중 적어도 하나임)로 표시되며, 부성분은 상기 모재 주성분 100 몰에 대하여, Dy 및 Tb 중 적어도 하나를 포함하는 산화물인 0.5 내지 2.0 몰의 제1 부성분을 포함하는 것을 특징으로 한다.-
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公开(公告)号：KR101883027B1
公开(公告)日：2018-07-27
申请号：KR1020140181804
申请日：2014-12-16
Applicant: 삼성전기주식회사
CPC classification number: H01G4/30 , C04B35/4682 , C04B2235/3206 , C04B2235/3208 , C04B2235/3215 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3229 , C04B2235/3239 , C04B2235/3241 , C04B2235/3248 , C04B2235/3262 , C04B2235/3272 , C04B2235/3275 , C04B2235/3279 , C04B2235/3281 , C04B2235/3284 , C04B2235/3418 , C04B2235/36 , C04B2235/442 , C04B2235/80 , H01G4/1227
Abstract: 본발명의일 실시형태는티탄산바륨계모재주성분및 부성분을포함하며, 소결후 미세구조에서 Ca 함량이 2.5 mol% 미만인결정립을제1 결정립, Ca의함량이 2.5 내지 13.5 mol%인결정립을제2 결정립으로규정할때, 상기제2 결정립의면적비율이전체면적 100%를기준으로 30% 내지 80% 인유전체자기조성물을제공한다.
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公开(公告)号：KR101761923B1
公开(公告)日：2017-08-07
申请号：KR1020110079484
申请日：2011-08-10
Applicant: 삼성전기주식회사
IPC: C01G23/00 , C04B35/468 , C04B41/85 , H01B3/12
Abstract: 본발명은티탄산바륨표면에코팅층을형성하는방법및 그로부터제조되는표면코팅층을포함하는티탄산바륨에관한것이다. 티탄산바륨과그 표면에코팅층을형성하기위한금속화합물의혼합슬러리에, 상기슬러리의 pH를서서히높이면서티탄산바륨표면에금속이온의탄산염을침전시키기위해필요한탄산이온을공급하는중탄산암모늄을투입하여반응시킴으로써, 티탄산바륨표면에금속탄산화물코팅층을높은코팅률로균일하게형성하는방법을제공한다. 상기금속탄산화물코팅층은열처리에의한티탄산바륨의결정화공정에서입성장을억제하는역할을하므로, 본발명에의하면입성장이억제된고결정성의티탄산바륨을제공할수 있다.
Abstract translation: 本发明涉及一种在钛酸钡表面上形成涂层的方法和一种含有由其制造的表面涂层的钛酸钡。 钛酸钡和金属化合物的混合浆料，以形成在其表面上的涂层，通过将碳酸氢铵反应以提供所需的碳酸根离子通过缓慢提高所述泥浆的pH值以沉淀在钛酸钡表面的金属离子的碳酸盐 由此以高涂布速率均匀地在钛酸钡表面上形成金属碳酸盐涂层。 由于金属碳酸盐涂层通过热处理起到抑制钛酸钡结晶过程中的晶粒生长的作用，因此本发明可以提供具有抑制晶粒生长的高结晶度的钛酸钡。
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公开(公告)号：KR1020170005646A
公开(公告)日：2017-01-16
申请号：KR1020150095992
申请日：2015-07-06
Applicant: 삼성전기주식회사
CPC classification number: C04B35/49 , C01G25/006 , C04B2235/3208 , C04B2235/3213 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3229 , C04B2235/3239 , C04B2235/3241 , C04B2235/3249 , C04B2235/3267 , C04B2235/3272 , C04B2235/3275 , C04B2235/3279 , C04B2235/3281 , C04B2235/3284 , C04B2235/3418 , C04B2235/36 , C04B2235/442 , C04B2235/5445 , C04B2235/6025 , C04B2235/652 , C04B2235/6582 , C04B2235/663 , H01G4/1227 , H01G4/1245 , H01G4/30
Abstract: 본발명은유전체자기조성물및 이를포함하는적층세라믹커패시터에관한것으로, 본발명에따른유전체자기조성물은 CaSr)(ZrTi)O으로표시되는모재분말 (상기 x의범위는 0≤x≤1.0, y의범위는 0.3≤y≤0.8)을포함하는것을특징으로한다.
Abstract translation: 提供了一种介电陶瓷组合物和包含该电介质陶瓷组合物的多层陶瓷电容器。 电介质陶瓷组合物可以含有由（Ca1-xSrx）（Zr1-yTiO）O3（0≤x≤1.0,0.3≤y≤0.8）表示的基材粉末。 多层陶瓷电容器可以包括其中电介质层和第一和第二内部电极交替堆叠的陶瓷体，其中电介质层包含含有由（Ca1-xSrx）（Zr1-yTiy）O3表示的基础材料粉末的介电陶瓷组合物 （0≤x≤1.0且0.3≤y≤0.8）。
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Patent Agency Ranking
公开(公告)号：KR101580321B1
公开(公告)日：2015-12-23
申请号：KR1020090037690
申请日：2009-04-29
Applicant: 삼성전기주식회사
IPC: C01G23/04 , C04B35/468
Abstract: 티탄산바륨의제조방법및 그방법에의하여제조된티탄산바륨이개시된다. 개시된티탄산바륨의제조방법은티탄산바륨의합성온도보다높은온도로가열하여결정성을높여주는단계를포함한다. 또한, 상기방법에의해제조된티탄산바륨은결정성이높으면서도좁은입도분포를가질수 있다.
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公开(公告)号：KR1020100118804A
公开(公告)日：2010-11-08
申请号：KR1020090037691
申请日：2009-04-29
Applicant: 삼성전기주식회사
IPC: C01G23/04 , C04B35/468
CPC classification number: C01G23/006 , C01P2004/51
Abstract: PURPOSE: A manufacturing method of barium titanate powder, and the barium titanate powder manufactured therefrom are provided to offer the nucleation and the grain growth of barium titanate by heat-processing barium titanyl oxalate powder with a filler. CONSTITUTION: A manufacturing method of barium titanate powder by an oxalate process comprises the following steps: preparing a barium chloride solution, and a TiSl4 solution; adding the solution to an oxalic acid solution to form barium titanyl oxalate; wet-milling the barium titanyl oxalate; drying the barium titanyl oxalate to obtain barium titanyl oxalate powder; filling a furnace with the barium titanyl oxalate powder and a filler; heat-processing the barium titanyl oxalate poweder to obtain barium titanate; and removing impurities from the barium titanyl oxalate powder.
Abstract translation: 目的：提供钛酸钡粉末的制造方法和由其制造的钛酸钡粉末，以通过用填料热处理草酸氧钛酸钡粉末来提供钛酸钡的成核和晶粒生长。 构成：通过草酸盐法制备钛酸钡粉末的方法包括以下步骤：制备氯化钡溶液和TiSl4溶液; 将溶液加入草酸溶液中以形成草酸氧钛钡; 湿磨草酸氧钛钡; 干燥草酸氧钛钡，得到草酸氧钛钡粉; 用草酸氧钛钡粉末和填料填充炉子; 热处理草酸氧钛钡粉以获得钛酸钡; 并从草酸氧钛钡粉中除去杂质。
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公开(公告)号：KR1020030015011A
公开(公告)日：2003-02-20
申请号：KR1020010049048
申请日：2001-08-14
Applicant: 롯데정밀화학 주식회사 , 삼성전기주식회사
IPC: C01G23/00
CPC classification number: H01G4/1227 , C01G23/006 , C01P2006/10 , C01P2006/40 , C04B35/6261 , C04B35/62655 , C04B2235/3208 , C04B2235/3215 , C04B2235/3236 , C04B2235/3244 , C04B2235/444 , C04B2235/449 , C04B2235/5409 , C04B2235/608 , C04B2235/77 , C04B2235/79
Abstract: PURPOSE: A preparation method of barium titanate powder with good dielectric characteristics and high yield is provided by preparing powder by an oxalate method and wet milling powder mixed with N-contained additive, and thermal treating. CONSTITUTION: The preparation method of BaTiO3 powder comprises the steps of: (i) spraying a mixed solution of BaCl2 and TiCl4 over oxalic acid(H2C2O4) to form barium titanyl oxalate(BaTiO(C2O4)-4H2O, BTO) particles; (ii) aging for 0.5-2hrs and washing; (iii) wet milling BTO particles with 0.5-20mol%(based on barium titanyl oxalate) of N-contained additives to prevent acidification of the mixture, viscosity increase after milling, and decrease of dielectric characteristics, where M2+(Mg, Ca, Sr) or M4+(Zr, Hf, Sn) is optionally added to form Perovskite barium titanium compounds; (iv) thermal treating at 700-1200deg.C for BaTiO3 powder. The N-contained additive is selected from ammonia, amine such as mono(di, tri)-methyl amine or di(tri)-ethyl amine, and ammonium compound such as ammonium hydroxide, ammonium carbonate, ammonium acetate, etc.
Abstract translation: 目的：通过草酸盐法制备粉末，与含氮添加剂混合的湿磨粉末和热处理，提供介电特性好，产率高的钛酸钡粉末的制备方法。 组成：BaTiO3粉末的制备方法包括以下步骤：（i）将草酸（H 2 C 2 O 4）上的BaCl 2和TiCl 4的混合溶液喷雾以形成草酸氧钛钡（BaTiO（C 2 O 4）-4H 2 O，BTO）颗粒; （ii）老化0.5-2小时并洗涤; （iii）用0.5-20mol％（基于草酸钡氧钛）的含N添加剂的湿磨BTO颗粒以防止混合物酸化，研磨后粘度增加，介电特性降低，其中M2 +（Mg，Ca，Sr ）或M4 +（Zr，Hf，Sn），以形成钙钛矿钡钛化合物; （iv）对于BaTiO 3粉末，在700-1200℃热处理。 含N的添加剂选自氨，单（二，三） - 甲胺或二（三） - 乙胺等胺类，氢氧化铵，碳酸铵，乙酸铵等铵化合物。
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