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Ceramic dielectric - contg barium or lead niobate or tantalate and barium-and lead-bismuth titanate
Ceramic dielectric - contg barium or lead niobate or tantalate and barium-and lead-bismuth titanate
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机译:陶瓷电介质-含钡或铌酸铅或钽酸盐,以及钡和钛酸铋铋
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摘要
Ceramic dielectric compsn. contg. BaO.Nb2O5, BaO.Ta2O5, PbO.Nb2O5 or PbO.Ta2O5 in addn. to BaTiO3 and oxide (forming cpds) of Ti, Pb, and Bi to form compsn. contg. 93-96 mol.% BaTiO3, 2.5-4.75 mol.% cpds. as PbBi4Ti4O15, 1-2.25 mol.% additives, is pref. aged by burning at esp. 1080-1100 degrees C for 2hrs resulting in high dielectric const. (epsilon) of 1200-1800 at 25 degrees C and 1 kHz and a change of (epsilon) of = plus-or-minus 17% at -50 degrees C to + 130 degrees C. Compsn. are useful in electronics, esp. for condensers.
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