Rapid insulation resistance test for bismuth-containing ceramic

Details Rapid insulation resistance test for bismuth-containing ceramic Rapid insulation resistance test for bismuth-containing ceramic

1981-07-24

1983-11-15

Swisher, S. Clement

Measuring and testing

Surface and cutting edge testing

73432R, G01N 3338

Patent

active

044148445

ABSTRACT:
The present invention relates to a method for rapidly determining the insulation resistance characteristics of bismuth-containing ceramic capacitors, and more particularly to ceramic capacitors incorporating a barium titanate dielectric. The test is predicated upon the discovery that capacitors of the type described and having satisfactory insulation characteristics exhibit a high percentage of inter-granular fracture. Capacitors of identical composition and apparently identical physical characteristics which, when fractured, evince a high percentage of trans-granular fractures have been found to exhibit unacceptably low insulation resistance characteristics.

REFERENCES:
patent: 4081857 (1978-03-01), Hanold
Soviet Powder Metallurgy and Metal Ceramics,vol. 16, No. 7, Jul. 1977, A. N. Pilyankevich, p. 552-555.
"An Electron Microscopical Investigation of Hard Alloys based on Chromium Cabide" Soviet Powder Metallurgy and Metal Ceramics, vol. 20, No. 6, A. N. Pilyankevich pp. 419-423.
"Compartive Investigation of Brittle Fracture Microstructures by Scanning and Replica Tranmission Electron Microscopy", Jun. 1981.
Soviet Powder Metallurgy and Metal Ceramics, vol. 17, No. 1, p. 80-81, N. E. Kharitinych, "Determination of the Depth of Impregnation of Porous Iron-Graphite Materials with a Capron-Finely Divided Copper Metallic Polymer", Jan. 1978.

Affiliated with

Also associated with

Rating

Rapid insulation resistance test for bismuth-containing ceramic does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rapid insulation resistance test for bismuth-containing ceramic , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rapid insulation resistance test for bismuth-containing ceramic will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-154031