Most technical ceramics possess a high electrical
resistivity of typically
= 1011m
combined with a high dielectric breakdown voltage gradient
(typically Ed >10 kV/mm) sometimes even at high
temperatures (see pp. 262 to 273); exceptions include SiC,
B4C and speciality materials).
Test procedures for determining the electrical resistance
are specified in DIN prEN 50359-1-2.
= 1011 
m
combined with a high dielectric breakdown voltage gradient
(typically Ed >10 kV/mm) sometimes even at high
temperatures (see pp. 262 to 273); exceptions include SiC,
B4C and speciality materials).