Vv. Kozharinov et al., ELECTRIC-DISCHARGE FREQUENCY METHOD OF LOCAL TESTING OF THE PERMEABILITY OF ANODIC ALUMINUM-OXIDE MEMBRANES, Russian journal of nondestructive testing, 32(2), 1996, pp. 131-133
An electric-discharge frequency method of nondestructive inspection of
dielectric coatings is used to record and determine the location of p
orosity flaws of ceramic membranes.