Metal powder, method for producing the same, conductive paste using the same, and monolithic ceramic electronic component
AssigneeMurata Manufacturing Co., Ltd.
InventorsTadasu Hosokura, Atsuyoshi Maeda
Life of this patent
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Abstract
A metal powder is formed by the steps of preparing a reducing agent solution, preparing a mixed metallic salt solution by dissolving a nickel salt and a copper salt in a solvent, and mixing the reducing agent solution and the mixed metallic salt solution so that the copper salt is reduced to precipitate copper particle nuclei and then the nickel salt is reduced to precipitate nickel around the copper particle nuclei. A metal power produced by this production method, a conductive paste containing the metal powder and a monolithic ceramic electronic component in which internal electrodes are formed using the conductive paste are also disclosed.
Claims9
A method for producing a metal powder comprising the steps of:
- providing a reducing agent solution;
- providing a mixed metallic salt solution comprising a nickel salt and a copper salt dissolved in a solvent wherein the copper content in the mixed metallic salt solution is in the range of about 4.6×10−7 to 5 percent by weight relative to the weight of nickel;
- and
- mixing the reducing agent solution and the mixed metallic salt solution such that the copper salt is reduced to precipitate copper particle nuclei and then the nickel salt is reduced to precipitate nickel around the copper particle nuclei.
Dependencies are inferred from the claim text.