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1. 发明授权

US5554571A Production of dielectric ceramic material powder 失效
标题翻译：电介质陶瓷材料粉末的生产
公开(公告)号：US5554571A
公开(公告)日：1996-09-10
申请号：US538335
申请日：1995-10-03
申请人： Shinsei Okabe , Sakiko Iwamoto , Harunobu Sano
发明人： Shinsei Okabe , Sakiko Iwamoto , Harunobu Sano
IPC分类号： C01G25/00 , C01G27/00 , C04B35/49 , C04B35/626
CPC分类号： C01G27/006 , C01G25/006 , C04B35/49 , C04B35/626 , C01P2002/34
摘要： Powder of dielectric ceramic materials is produced by preparing a main component Ba(Ti.sub.1-x-y Zr.sub.x Hf.sub.y)O.sub.3 allowing barium hydroxide, at least one titanium compound, at least one zirconium compound and at least one hafnium compound to react with one another by condensation by catalytic actions of a base selected from the group consisting of alkali and amines; preparing a complex hydroxide of at least one rare earth element and manganese by allowing at least one rare earth element compound and a manganese compound to react with a base selected from the group consisting of alkali and amines in an aqueous solution; preparing at least one carbonate of calcium and magnesium by allowing at least one compound of calcium compounds and magnesium compounds to react with carbonate ions in an aqueous solution; mixing all the precipitates, and drying and thermally treating the resultant mixture.
摘要翻译：电介质陶瓷材料的粉末是通过制备主要成分Ba（Ti1-x-yZrxHfy）O3来制备的，所述主要组分Ba（Ti1-x-yZrxHfy）O3允许氢氧化钡，至少一种钛化合物，至少一种锆化合物和至少一种铪化合物彼此反应，选自碱和胺的碱的催化作用; 通过在水溶液中使至少一种稀土元素化合物和锰化合物与选自碱和胺的碱反应来制备至少一种稀土元素和锰的复合氢氧化物; 通过使至少一种化合物的钙化合物和镁化合物与水溶液中的碳酸根离子反应来制备至少一种钙和镁的碳酸盐; 混合所有沉淀物，并干燥并热处理所得混合物。

2. 发明授权

US5439857A Dielectric ceramic composition 失效
标题翻译：介电陶瓷组合物
公开(公告)号：US5439857A
公开(公告)日：1995-08-08
申请号：US268819
申请日：1994-06-30
申请人： Sakiko Iwamoto , Harunobu Sano , Yukio Hamaji , Kunisaburo Tomono
发明人： Sakiko Iwamoto , Harunobu Sano , Yukio Hamaji , Kunisaburo Tomono
IPC分类号： C04B35/499 , H01G4/12 , C04B35/26
CPC分类号： C04B35/499 , H01G4/1254
摘要： A dielectric ceramic composition consists essentially of a main component of a four component system, Pb(Mg.sub.1/3 Nb.sub.2/3)O.sub.3 --PbTiO.sub.3 --Pb(Ni.sub.1/3 Nb.sub.2/3)O.sub.3 --Pb(Zn.sub.1/2 W.sub.1/2)O.sub.3, of which a part of Pb is replaced with at least one substituent selected from the group consisting of Ba, Ca and Sr; and a secondary component selected from the group consisting of w, Zn and Mg. The secondary component is incorporated in the main component in an amount of 0.05 to 10.0 parts by weight per 100 parts by weight of the main component in terms of each oxide, WO.sub.3, ZnO or MgO. The main component consists essentially of 4.0 to 93.0 mol % of Pb(Mg.sub.1/3 Nb.sub.2/3)O.sub.3, 1.5 to 35.0 mol % of PbTiO.sub.3, 1.5 to 51.0 mol % of Pb(Ni.sub.1/3 Nb.sub.2/3)O.sub.3, and 1.0 to 34.0 mol % of Pb(Zn.sub.1/2 W.sub.1/2)O.sub.3, the amount of at least one substituent for Pb being 0.1 to 10 mol %.
摘要翻译：电介质陶瓷组合物主要由四组分Pb（Mg1 / 3Nb2 / 3）O3-PbTiO3-Pb（Ni1 / 3Nb2 / 3）O3-Pb（Zn1 / 2W1 / 2）O3的主要成分组成，其中一部分Pb被选自Ba，Ca和Sr中的至少一种取代基取代; 和选自由w，Zn和Mg组成的组的次要组分。相对于每种氧化物WO 3，ZnO或MgO而言，以每100重量份主成分为0.05〜10.0重量份的次要成分。主要成分基本上由Pb（Mg1 / 3Nb2 / 3）O3的4.0〜93.0mol％，PbTiO3的1.5〜35.0mol％，Pb（Ni1 / 3Nb2 / 3）O3的1.5〜51.0mol％，以及1.0〜34.0 Pb（Zn1 / 2W1 / 2）O3的摩尔％，Pb的至少一个取代基的量为0.1〜10摩尔％。

3. 发明授权

US5612268A Dielectric ceramic composition 失效
标题翻译：介电陶瓷组合物
公开(公告)号：US5612268A
公开(公告)日：1997-03-18
申请号：US447234
申请日：1995-05-22
申请人： Sakiko Iwamoto , Masamitsu Shibata , Yukio Hamaji
发明人： Sakiko Iwamoto , Masamitsu Shibata , Yukio Hamaji
IPC分类号： C04B35/468 , H01B3/12 , H01G4/12 , C04B35/462 , C04B35/475 , C04B35/495
CPC分类号： C04B35/4682 , H01B3/12 , H01G4/1227
摘要： The present invention relates to a dielectric ceramic composition, comprising from 97.5 to 99.95% by weight of{100-(a+b+c+d)}BaTiO.sub.3 +aZnO+b(2Bi.sub.2 O.sub.3.3AO.sub.2)+cTa.sub.2 O.sub.5 +dRe.sub.2 O.sub.3as main component and from 0.05 to 2.5% by weight of glass mainly comprising SiO.sub.2, and possibly also containing from 0.01 to 0.5% by weight of at least one oxides of Cr, Mn, Fe, Co, and/or Ni. A represents Zr or Sn; Re represents at least one of La, Pr, Nd, Sm, Dy and Er; and {100-(a+b+c+d)}, a, b, c, and d represent molar percent which satisfy the following relationships:______________________________________ 0.5 .ltoreq. a .ltoreq. 4.5 0.5 .ltoreq. b .ltoreq. 4.5 0.5 .ltoreq. c .ltoreq. 4.5 0.5 .ltoreq. d .ltoreq. 5.5. ______________________________________
摘要翻译：本发明涉及一种电介质陶瓷组合物，其包含97.5-99.95重量％的{100-（a + b + c + d）} BaTiO3 + aZnO + b（2Bi2O3.3AO2）+ cTa2O5 + dRe2O3为主要成分， 0.05-2.5重量％的主要包含SiO 2的玻璃，并且还可能含有0.01-0.5重量％的至少一种Cr，Mn，Fe，Co和/或Ni的氧化物。 A表示Zr或Sn; Re表示La，Pr，Nd，Sm，Dy和Er中的至少一种; 和{100-（a + b + c + d）}，a，b，c和d表示满足以下关系的摩尔百分比：-0.5

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