Dielectric ceramic composition and electric device

Details Dielectric ceramic composition and electric device Dielectric ceramic composition and electric device

2011-08-30

2011-08-30

Lorengo, Jerry A (Department: 1731)

Compositions: ceramic

Ceramic compositions

Titanate, zirconate, stannate, niobate, or tantalate or...

C428S471000, C428S701000, C428S702000, C361S321400, C361S321500

Reexamination Certificate

active

08008221

ABSTRACT:
A dielectric ceramic composition of the present invention comprises; BamTiO2+m(note that, m is 0.99≦m≦1.01), and BanZrO2+n(note that, n is 0.99≦n≦1.01); wherein said dielectric ceramic composition consists of plurality of dielectric particles and a grain boundary phase existing between said dielectric particles adjacent to each other, when said dielectric particle having BamTiO2+mas a main component is set to a first dielectric particle, said dielectric particle having BanZrO2+nas a main component is set to a second dielectric particle, an average crystal diameter of said first dielectric particle is set to D1(μm), and an average crystal diameter of said second dielectric particle is set to D2(μm), then a ratio (D2/D1) of said D2with respect to said D1is 0.04 to 0.33, said D2is 0.02 to 0.25 μm, and in said dielectric ceramic composition a ratio of the total number of said second dielectric particle with respect to the total number of said first dielectric particle is 0.10 to 2. The present invention is to provide the dielectric ceramic composition suitable for the medium-high voltage application used at a high rated voltage (for example, 100V or more).

REFERENCES:
patent: 3969252 (1976-07-01), Utsumi et al.
patent: 5319517 (1994-06-01), Nomura et al.
patent: 5757610 (1998-05-01), Wada et al.
patent: 7790645 (2010-09-01), Seki et al.
patent: 2007/0284792 (2007-12-01), Yanagida et al.
patent: 2008/0297979 (2008-12-01), Aman et al.
patent: B2-3567759 (2004-09-01), None
patent: A-2006-321670 (2006-11-01), None

Affiliated with

Also associated with

Rating

Dielectric ceramic composition and electric device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dielectric ceramic composition and electric device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dielectric ceramic composition and electric device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2788426