CERAMIC MIXTURE FOR MANUFACTURE OF HIGH-FREQUENCY CAPACITORS WITH TEMPERATURE COEFFICIENT OF CAPACITANCE OF (-47 01 + 30 10 99 - 996 DEG 99-991) Russian patent published in 1995 - IPC

FIELD: radio electronics. SUBSTANCE: ceramic material mixture containing solid solution meeting common formula (Ba_0,9Sr_0,1)(Nd_0,6Bi_0,2La_0,2)₂Ti₄O₁₂ is added with glass forming additive of variable content xB₂O₃·ySiO₂, where X=0.05-0.90; Y=0.10-0.95 in the amount of 1.0-2.0 per cent by mass. EFFECT: reduced sintering temperature of material up to 1060-1160 C and annealing temperature to 1060-1120 C with keeping dielectric permittivity value ε ~ 100 and capacitance C = 0,04 μF,. 3 tbl