| Title |
Microwave Dielectric Properties of the (l-x)TiTe_3O_{8}-xMgTiO_3 Ceramics with Sintering Temperature |
| Authors |
최의선 ; 김재식 ; 이문기 ; 류기원 ; 이영희 |
| Keywords |
Microwave Dielectric ; TiTe_3O_{8-x} ; LTCC |
| Abstract |
In this study, the (l-x)TiTe_3O_{8}-xMgTiO_3 ceramics were investigated to obtain the improved dielectric properties of a high temperature stability and a sintering temperature of less than 900°C which was necessary for the LTCC. According to the X-ray diffraction patterns of the (l-x)TiTe_3O_{8}-xMgTiO_3(x=0∼1) ceramics, the columbite structure of TiTe_3O_{8} and ilmenite structure of MgTiO_3 were coexisted. Increasing the MgTiO_3 mole ratio(x), the density and dielectric constant were decreased and temperature coefficient of resonant frequency was moved to the negative direction and the quality factor was increased. In the case of the 0.6TiTe_3O_{8}-0.4MgTiO_3 ceramics sintered at 830°C for 3hr., the microwave dielectric properties were ε_γ=29.3, Q×f_γ=39.600GHz and τ_{f}=+9.3ppm/°C. |