Methods for manufacturing capacitors and electrodes using...

Details Methods for manufacturing capacitors and electrodes using... Methods for manufacturing capacitors and electrodes using...

2005-04-19

2005-04-19

Wyszomierski, George (Department: 1742)

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Making composite or hollow article

C419S023000, C075S369000, C361S313000

Reexamination Certificate

active

06881377

ABSTRACT:
Provided is an ultrafine nickel powder suitable for a laminated ceramic capacitor electrode material. According to the ultrafine nickel powder, cracks and/or delamination are not liable to generate in the process for producing a ceramic capacitor, and its internal electrode can be made into a thinner layer, and the electric risistivity of the capacitor-can be made low. The ultrafine nickel powder has an average particle size of 0.1-1.0 μm, having the sulfur content of 0.02-1.0% by weight, and particles thereof being spherical, thereby exhibiting excellent properties. They can be produced by vapor phase hydrogen-reducing process using nickel chloride vapor.

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