Voltage-dependent non-linear resistance ceramic composition

Abstract

Abstract (57) A voltage-dependent non-linear resistance ceramic composition comprises SrTiO 3 , Sr 1-x Ba x TiO 3 (0.001≦x≦0.300) or Sr 1-x Ca x TiO 3 (0.001≦x0.300) as host material and further includes 0.001-2.000 mol% of Y 2 0 3 as metal oxide for semiconductorization acceleration, 0.001-3.000 mol% of metal oxide(s) of at least one selected from the group consisting of Ca 2 O 3 , CuO, Ag 2 O, Al 2 O 3 , ZrO 2 , BaO, SiO 2 , MgO, B 2 O 3 , MnO 2 , NiO, Mo03, BeO, Fe 2 0 3 , Li 2 0, Cr 2 0 3 , PbO, CaO, TiO 2 , P 2 O 5 , Sb 2 O 3 and V 2 O 5 , which segregates at grain boundary to make the grain boundary selectively to high resistances; an element made of the composition has both characteristics of capacitance and varistor, and is suitable for filter to remove noise or surge.

Inventors

• 👤 Keiichi Noi

Bibliographic Details