Microwave dielectric properties of low temperature co-fired glass-ceramic based on B_2O_3-La_2O_3-MgO glass with La(Mg_(0.5)Ti_(0.5))O_3 ceramics

摘要

Glass-ceramic materials based on B_2O_3-La_2O_3-MgO glass with La(Mg_(0.5)Ti_(0.5))O_3 ceramics were fabricated. The sintering behavior and microwave dielectric properties of glass-ceramic were investigated. With the increase of sintering temperature, the ε_r value of glass-ceramic decreased, while the Q×f value increased obviously and the τ_f value only increased slightly. Glass-ceramic sintered at 850 ℃ had an excellent microwave dielectric property: ε_r=11.8, Q×f= 14,700 GHz and τ_f=7.4 ppm/℃.