NICKEL COMPOSITE PARTICLE

摘要

PROBLEM TO BE SOLVED: To provide a nickel composite particle in which particle aggregation, fusion at sintering and generation of carbides at a metal surface are suppressed, rapid oxidation of a metal nickel particle at binder removal is suppressed and sintering resistance is improved.SOLUTION: A nickel composite particle comprises a metal nickel particle and titanium oxide covering a surface thereof. The nickel composite particle contains 0.1 to 2.0 mass% titanium element, 0.5 to 2.0 mass% carbon element and 0.5 to 4.0 mass% oxygen element. In the nickel composite particle, the content ratio of the carbon element to the oxygen element ((carbon element content)/(oxygen element content)) is within the range of 0.1 to 0.5.