Abstract:
The tetragonal gillespite type SrCuSi4O10 (SCS) was prepared by the conventional solid-state ceramic route. The SCS sintered at 1100 degrees C/6 h showed epsilon(r) = 4.0 and tan delta =1.1 x 10(-3) at 5 GHz. The SCS has poor sinterability and the addition of lithium magnesium zinc borosilicate glass (20: Li2O, 20: MgO, 20: ZnO, 20: B2O3, 20: SiO2) lowered the sintering temperature and improved densification. The SCS ceramic with 5 wt.% LMZBS glass sintered at 900 degrees C has epsilon(r) = 5.0 and tan delta = 1.9 x 10(-3) at 5 GHz. The composite is chemically compatible with the common electrode material silver.
