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    • 4. 发明公开
    • 니켈-레늄 합금 분말 및 그것을 함유하는 도체 페이스트
    • 镍 - 铑合金粉和含有镍 - 铑合金粉的导电胶
    • KR1020090069302A
    • 2009-06-30
    • KR1020097007942
    • 2007-09-25
    • 소에이 가가쿠 고교 가부시키가이샤
    • 아키모토유지나가시마가즈로기무라데쓰야가마호리야스히로
    • C22C19/03B22F1/02H01B1/22H01G4/30
    • H01G4/008B22F1/02B22F2998/00H01B1/22H01F27/292H01G4/0085H01G4/30H01L23/49883H01L2924/0002Y10T428/2991B22F1/0018B22F9/22B22F9/28C22C1/0433H01L2924/00
    • This invention provides a nickel-rhenium alloy powder suitable particularly for the formation of an internal electrode layer for a stacked ceramic electronic component. The nickel-rhenium alloy powder comprises nickel as a main component and further comprises 0.1 to 10% by weight of rhenium and having an average particle diameter of 0.05 to 1.0 mum. The nickel-rhenium alloy powder has a surface oxide film comprising an oxide of nickel and an oxide of rhenium. The content of oxygen in the nickel-rhenium alloy powder in the surface oxide film is 0.1 to 3.0% by weight based on the total amount of the powder. The powder, optionally together with other additive(s), is homogeneously mixed and dispersed in an organic vehicle to prepare a conductor paste. The use of the nickel-rhenium alloy powder particularly for the formation of an internal electrode for a stacked ceramic electronic component is advantageous in that, by virtue of the surface oxide film, the sintering shrink behavior of the electrode can be rendered similar to the sintering shrink behavior of the ceramic layer. Further, spheroidizing of the electrode attributable to oversintering does not take place. Therefore, an internal electrode, which is thinner and denser and has excellent continuity, can be provided.
    • 本发明提供一种特别用于形成层叠陶瓷电子部件的内部电极层的镍 - 铼合金粉末。 镍铼合金粉末以镍为主成分,进一步含有0.1〜10重量%的铼,平均粒径为0.05〜1.0μm。 镍铼合金粉末具有由镍的氧化物和铼的氧化物构成的表面氧化膜。 表面氧化膜中的镍 - 铼合金粉末中的氧含量相对于粉末的总量为0.1〜3.0重量%。 粉末,任选与其它添加剂一起均匀混合并分散在有机载体中以制备导体糊料。 特别是用于形成层叠陶瓷电子部件的内部电极的镍铼合金粉末的使用的优点在于,通过表面氧化膜,电极的烧结收缩特性可以与烧结类似 陶瓷层的收缩行为。 此外,不会发生归结于过度烧结的电极的球化。 因此,可以提供更薄更致密且具有优异连续性的内部电极。