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Dielectric Breakdown of Porous MgAl 2 O 4
Author(s) -
Rupaal A. S.,
Garnier J. E.,
Bates J. L.
Publication year - 1981
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1981.tb09889.x
Subject(s) - porosity , dielectric , materials science , dielectric strength , composite material , mineralogy , porous medium , geology , optoelectronics
The effects of controlled porosity on the dielectric breakdown of sintered MgAl 2 O 4 were measured using an acoustic emission technique. Results are compared to a statistical model relating dielectric strength to a random distribution of spherical pores and the probability of pores aligned in a vertical column. Data are in good agreement with the model when only maximum pore size is considered .