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公开(公告)号：US06503560B2
公开(公告)日：2003-01-07
申请号：US09944164
申请日：2001-09-04
IPC分类号： B05D700
CPC分类号： H01G4/0085 , B22F1/0096 , B22F1/02 , B22F2999/00 , C22C1/1084 , Y10T428/2991 , B22F9/04
摘要： The composite nickel fine powder includes surface-oxidized nickel fine particles and at least one member selected from the group consisting of oxides and complex oxides of at least one metal element having an atomic number ranging from 12 to 56 or 82 and belonging to Group 2 to 14 of the Periodic Table on the surface of the surface-oxidized nickel fine particles.
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2.发明授权Nickel powder, method for preparing the same and paste for use in making electrodes for electronic parts 有权镍粉，其制备方法和用于制造电子部件用电极的糊剂公开(公告)号：US06632524B1
公开(公告)日：2003-10-14
申请号：US09716238
申请日：2000-11-21
IPC分类号： B32B1502
CPC分类号： H01G4/0085 , H01B1/02 , H01B1/22 , Y10T428/29 , Y10T428/2982 , Y10T428/2991
摘要： Nickel powder comprises, on the basis of the total number of particles, not less than 10% of particles whose particle size is not less than 1.2 time the average particle size, as determined by the SEM observation; and not less than 10% of particles whose particle size is not more than 0.8 time the average particle size, as determined by the SEM observation. The nickel powder can be prepared by, for instance, precipitating nickel particles from an aqueous solution containing a nickel salt and a hydrazine reducing agent, without forming any hydroxide of nickel as an intermediate. A conductive paste containing the nickel powder can be applied onto the positions on which an internal or external electrode for electronic parts and then baking the coated paste to give an electrode.
摘要翻译： 根据SEM观察，镍粉基于粒子总数不少于粒径不小于1.2倍平均粒度的粒子的10％; 和通过SEM观察确定的粒径不大于平均粒径的0.8倍的粒子的不少于10％。 镍粉可以通过例如从含有镍盐和肼还原剂的水溶液中沉淀镍颗粒而不形成任何镍的氢氧化物作为中间体来制备。 施加到用于电子部件的内部或外部电极的位置上，然后烘烤涂覆的糊料以产生电极。
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3.发明授权Nickel powder, method for preparing the same and paste for use in making electrodes for electronic parts 失效镍粉，其制备方法和用于制造电子部件用电极的糊剂公开(公告)号：US06939390B2
公开(公告)日：2005-09-06
申请号：US10609566
申请日：2003-07-01
CPC分类号： H01G4/0085 , H01B1/02 , H01B1/22 , Y10T428/29 , Y10T428/2982 , Y10T428/2991
摘要： Nickel powder includes, on the basis of the total number of particles, not less than 10% of particles whose particle size is not less than 1.2 times the average particle size, as determined by the SEM observation; and not less than 10% of particles whose particle size is not more than 0.8 times the average particle size, as determined by the SEM observation. The nickel powder can be prepared by, for instance, precipitating nickel particles from an aqueous solution containing a nickel salt and a hydrazine reducing agent, without forming any hydroxide of nickel as an intermediate. A conductive paste containing the nickel powder can be applied onto an internal or external electrode for electronic parts.
摘要翻译： 根据SEM观察，镍粉末基于粒子总数不少于粒径不小于平均粒径的1.2倍的粒子的10％; 和通过SEM观察确定的粒径不大于平均粒径的0.8倍的粒子的不少于10％。 镍粉可以通过例如从包含镍盐和肼还原剂的水溶液中沉淀镍颗粒而不形成任何镍的氢氧化物作为中间体来制备。 可以将含有镍粉末的导电膏施加到用于电子部件的内部或外部电极上。
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公开(公告)号：US6120576A
公开(公告)日：2000-09-19
申请号：US112361
申请日：1998-07-09
CPC分类号： C22B23/0453 , B22F1/0014 , B22F9/24 , B22F2998/00
摘要： A method for preparing nickel fine powder is herein disclosed, which comprises the steps of mixing an aqueous sodium hydroxide solution comprising, on the basis of the total weight of the sodium hydroxide present in the aqueous solution, 75 to 85% by weight of liquid caustic soda as specified in JIS K 1203 and 25 to 15% by weight, in total, of at least one of sodium hydroxide as specified in JIS K 8576 and solid caustic soda as specified in JIS K 1202, with an aqueous solution of nickel sulfate to form nickel hydroxide, then reducing the resulting nickel hydroxide with hydrazine and recovering nickel fine powder produced. The nickel fine powder prepared by the method has an average particle size of the primary particles ranging from 0.1 to 0.9 .mu.m, a D.sub.90 value of not more than 2.1 .mu.m and a tap density of not less than 3.5 g/cc. The nickel fine powder has a low degree of aggregation, a narrow particle size distribution and a high tap density and therefore, the powder is quite suitably used as a material for producing an internal electrode for a laminated ceramic condenser.
摘要翻译： 本文公开了一种制备镍微粉的方法，其包括以下步骤：将氢氧化钠水溶液混合，所述氢氧化钠水溶液基于存在于水溶液中的氢氧化钠的总重量为75至85重量％的液体苛性碱 按照JIS K 1203中规定的苏打水，以及JIS-8576中规定的氢氧化钠中的至少一种和JIS K 1202中规定的固体苛性钠中的至少一种的25〜15重量％的硫酸镍水溶液 形成氢氧化镍，然后用肼还原所得的氢氧化镍并回收生产的镍细粉。 通过该方法制备的镍微粉末，其一次粒子的平均粒径为0.1〜0.9μm，D90值不大于2.1μm，振实密度为3.5g / cc以上。 镍微粉末具有低聚集度，窄粒度分布和高振实密度，因此该粉末非常适合用作制备用于层压陶瓷冷凝器的内部电极的材料。
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公开(公告)号：US06162277A
公开(公告)日：2000-12-19
申请号：US240629
申请日：1999-02-01
IPC分类号： C01G53/00 , B22F1/00 , B22F5/00 , B22F9/24 , C22B3/44 , C22B5/00 , C22B23/00 , C22C1/04 , C22C19/00 , H01G4/008 , H01G4/12 , B22F9/00
CPC分类号： H01G4/0085 , B22F9/24 , C22C1/0433
摘要： A nickel fine powder includes 0.02 to 1.0% by weight of magnesium and/or 0.02 to 0.1% by weight of calcium dispersed in the nickel. A method for preparing the nickel fine powder includes the steps of forming nickel hydroxide by mixing an aqueous solution containing a magnesium salt and/or a calcium salt and a nickel salt with an aqueous solution of sodium hydroxide and then reducing the hydroxide with a hydrazine reducing agent. The nickel fine powder has thermal shrinkage characteristics very close to those observed for ceramic substrates and is accordingly suitable as a material for producing an internal electrode for laminated ceramic condensers.
摘要翻译： 镍微粉末包含0.02〜1.0重量％的镁和/或0.02〜0.1重量％的分散在镍中的钙。 制备镍微粉的方法包括以下步骤：通过将含有镁盐和/或钙盐和镍盐的水溶液与氢氧化钠水溶液混合形成氢氧化镍，然后用还原肼还原氢氧化物 代理商 镍微粉末的热收缩特性与陶瓷基板的热收缩特性非常接近，因此适合作为层叠陶瓷电容器的内部电极的制造用材料。
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公开(公告)号：US06391087B1
公开(公告)日：2002-05-21
申请号：US09714198
申请日：2000-11-17
IPC分类号： B22F924
CPC分类号： B22F9/24 , B22F1/0011 , H05K1/095
摘要： Copper fine powder has an electrical resistance in its powdery state of not more than 1×10−3 &OHgr;·cm; a BET specific surface area ranging from 0.15 to 0.3 m2/g; a tap density of not less than 4.5 g/cc; a product of the tap density and the particle size, of not less than 13, the particle size being calculated from the specific surface area and; a particle size distribution observed in the microtrack measurement as expressed in terms of D50 and D90 ranging from 4 to 7 &mgr;m and 9 to 11 &mgr;m, respectively; and a weight loss through hydrogen-reduction of not more than 0.30%. The copper fine powder is prepared by adding an alkali hydroxide to an aqueous copper salt solution containing divalent copper ions maintained at not less than 55° C. in an amount of not less than the chemical equivalent to form cupric oxide; then gradually adding a reducing sugar to the reaction system while maintaining the temperature of the system to not less than 55° C. to reduce the cupric oxide to cuprous oxide; followed by filtration and washing, re-suspension to form a slurry, gradual addition of a hydrazine reducing agent to the slurry in the presence of a pH buffer capable of maintaining the pH to 5.5 to 8.5 to thus reduce the cuprous oxide to metal copper.
摘要翻译： 铜精细粉末的电阻在其粉末状态不超过1×10-3欧米加•厘米; BET比表面积为0.15〜0.3m2 / g; 振实密度不小于4.5g / cc; 振实密度和粒径的乘积不小于13，粒径由比表面积计算; 在微轨迹测量中观察到的粒度分布如D50和D90所示，分别为4至7μm和9至11μm; 并且通过氢还原的重量减少不大于0.30％。 通过向不低于55℃的含有二价铜离子的铜盐水溶液中加入碱金属氢氧化物，其量不小于形成氧化铜的化学当量; 然后逐渐向反应体系中加入还原糖，同时将体系温度保持在不低于55℃，将氧化铜还原为氧化亚铜; 然后过滤和洗涤，再悬浮以形成浆料，在能够将pH维持在5.5至8.5的pH缓冲剂存在下，向该浆液中逐渐加入肼还原剂，从而将氧化亚铜还原成金属铜。
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公开(公告)号：US06174344B1
公开(公告)日：2001-01-16
申请号：US09088490
申请日：1998-06-02
IPC分类号： C22C900
CPC分类号： B22F9/24 , B22F1/0011 , H05K1/095
摘要： Copper fine powder has an electrical resistance in its powdery state of not more than 1×10−3&OHgr;.cm; a BET specific surface area ranging from 0.15 to 0.3 m2/g; a tap density of not less than 4.5 g/cc; a product of the tap density and the particle size, of not less than 13, the particle size being calculated from the specific surface area and a particle size distribution observed in the microtrack measurement as expressed in terms of D50 and D90 ranging from 4 to 7 &mgr;m and 9 to 11 &mgr;m, respectively; and a weight loss through hydrogen-reduction of not more than 0.30%. The copper fine powder is prepared by adding an alkali hydroxide to an aqueous copper salt solution containing divalent copper ions maintained at not less than 55° C. in an amount of not less than the chemical equivalent to form cupric oxide; then gradually adding a reducing sugar to the reaction system while maintaining the temperature of the system to not less than 55° C. to reduce the cupric oxide to cuprous oxide; followed by filtration and washing, re-suspension to form a slurry, gradual addition of a hydrazine reducing agent to the slurry in the presence of a pH buffer capable of maintaining the pH to 5.5 to 8.5 to thus reduce the cuprous oxide to metal copper.
摘要翻译： 铜细粉末的电阻在其粉末状态不超过1×10-3OMEGA.cm; BET比表面积为0.15〜0.3m2 / g; 振实密度不小于4.5g / cc; 振实密度和颗粒尺寸的产品不小于13，粒径由比表面积计算，并且在微曲线测量中观察到的粒度分布以D50和D90表示，范围为4至7 妈妈和9至11岁妈妈分别; 并且通过氢还原的重量减少不大于0.30％。 通过向不低于55℃的含有二价铜离子的铜盐水溶液中加入碱金属氢氧化物，其量不小于形成氧化铜的化学当量; 然后逐渐向反应体系中加入还原糖，同时将体系温度保持在不低于55℃，将氧化铜还原为氧化亚铜; 然后过滤和洗涤，再悬浮以形成浆料，在能够将pH维持在5.5至8.5的pH缓冲剂存在下，向该浆液中逐渐加入肼还原剂，从而将氧化亚铜还原成金属铜。
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公开(公告)号：US6096285A
公开(公告)日：2000-08-01
申请号：US178612
申请日：1998-10-26
摘要： Herein disclosed is 6 indium tin oxide (ITO) fine powder whose crystal form is a corundum type one and which has a true specific gravity of not less than 6.5 g/cc, a green density of not less than 3.0 g/cc, and a Seebeck coefficient of less than 30 .mu.V/cc at ordinary temperature and less than 80 .mu.V/cc after heating at 200.degree. C. The ITO fine powder can be prepared by a method which comprises the steps of neutralizing an aqueous solution containing an indium salt and a tin salt with ammonia to thus control the pH of the reaction solution to the range of from 6.8 to 7.5; separating the resulting neutralized precipitates through filtration; drying and washing the precipitates; calcining the precipitates in the air at a temperature ranging from 550 to 700.degree. C.; and then reducing-burning at a temperature ranging from 350 to 450.degree. C. in a reducing atmosphere.
摘要翻译： 本文公开了6种氧化铟锡（ITO）微粉，其晶体形式为刚玉型，其比重不小于6.5g / cc，绿色密度不小于3.0g / cc， 塞贝克系数在常温下小于30μV/ cc，在200℃下加热后小于80μV/ cc。ITO细粉末可以通过包括以下步骤的方法制备，该方法包括以下步骤：中和含有铟的水溶液 盐和与锡的锡盐，从而将反应溶液的pH控制在6.8至7.5的范围内; 通过过滤分离得到的中和沉淀; 干燥和洗涤沉淀物; 在550〜700℃的温度范围内煅烧空气中的析出物。 然后在还原气氛中在350〜450℃的温度下进行还原烧成。
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公开(公告)号：US20090269585A1
公开(公告)日：2009-10-29
申请号：US11909874
申请日：2006-03-27
CPC分类号： C01G51/006 , C01G51/00 , C01G53/00 , C01G53/006 , C01P2002/32 , C01P2002/52 , C01P2004/20 , C01P2004/62 , C01P2006/11 , C01P2006/12 , C01P2006/19 , C01P2006/40 , C01P2006/62 , C01P2006/63 , C01P2006/64 , C08K3/22 , C09C1/00 , C09C1/0009 , C09D5/24 , C09D7/61 , C09D7/68 , H01B1/08 , Y10T428/2982 , Y10T428/2991 , Y10T428/2993
摘要： The complex oxide particles of the present invention are conductive and exhibit a black color. The particles contain cobalt in an amount of 40 to 65% by mass in terms of the metal element based on the whole particles and at least one kind or two or more kinds of metals selected from copper, nickel and molybdenum. The particles are preferably prepared in the following manner: an aqueous solution of mixed metal salts prepared from water-soluble salts, wherein the aqueous solution contains cobalt and one kind or two or more kinds of metal element selected from copper, nickel and molybdenum, is mixed and neutralized with an alkali hydroxide to obtain a metal hydroxide slurry; the resultant slurry of metal hydroxides is kept at a pH of 10 to 13 and oxidized at a temperature of higher than 40° C. and 60° C. or less to obtain a precursor slurry; the resultant precursor slurry is aged at 80 to 150° C.; and then, after solid-liquid separation, the resultant solid is heated at 400 to 700° C. for longer than 1 hour and 3 hours or less.
摘要翻译： 本发明的复合氧化物粒子是导电性的，呈黑色。 颗粒含有的金属元素相对于整个颗粒为40〜65质量％的钴和选自铜，镍和钼中的至少一种或两种以上的金属。 颗粒优选以如下方式制备：由水溶性盐制备的混合金属盐的水溶液，其中所述水溶液含有钴和选自铜，镍和钼中的一种或两种或更多种金属元素， 混合并用碱金属氢氧化物中和，得到金属氢氧化物浆料; 将所得的金属氢氧化物浆液保持在10〜13的pH，在高于40℃，60℃以下的温度下进行氧化，得到前体浆料; 所得前体浆料在80-150℃下老化; 然后在固液分离后，将所得固体在400-700℃下加热1小时以上3小时以下。
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10.发明授权Composite black oxide particle, method for producing same, black coating material and black matrix 失效复合黑色氧化物颗粒，其制造方法，黑色涂料和黑色矩阵公开(公告)号：US07465495B2
公开(公告)日：2008-12-16
申请号：US10576125
申请日：2004-10-14
IPC分类号： B32B5/16
CPC分类号： C01G51/006 , C01P2002/32 , C01P2004/32 , C01P2004/45 , C01P2004/62 , C01P2004/80 , C01P2004/82 , C01P2004/84 , C01P2006/12 , C01P2006/19 , C01P2006/60 , C01P2006/62 , C01P2006/63 , C01P2006/64 , C09C1/0081 , Y10T428/2982 , Y10T428/2991 , Y10T428/2993
摘要： Disclosed is a composite black oxide particle which is composed of oxide of cobalt, copper and manganese. The copper/cobalt molar ratio is 0.1-0.5, and the manganese/cobalt molar ratio is 0.2-1.0. The composite black oxide particle further contains silicon, and the silicon content to the total oxide particle is 0.1-3 mass %. The surface of the composite black oxide particle is coated with aluminum oxide. The Al content in the surface coating to the entire particle is 0.05-3 mass %.
摘要翻译： 公开了由钴，铜和锰的氧化物构成的复合黑氧化物粒子。 铜/钴摩尔比为0.1-0.5，锰/钴摩尔比为0.2-1.0。 复合黑色氧化物粒子还含有硅，与氧化物总量的硅含量为0.1〜3质量％。 复合黑色氧化物颗粒的表面涂覆有氧化铝。 表面涂覆到整个颗粒的Al含量为0.05-3质量％。
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