Title :
Microwave dielectric properties of MgTiO3-BaTiO3 ceramics
Author :
Choi, Eui Sun ; Lee, Young Hie ; Bae, Seon Gi
Author_Institution :
Dept. of Electron. Mater. Eng., Kwangwoon Univ., Seoul, South Korea
Abstract :
The (1-x)MgTiO3-xBaTiO3(X=0.02~0.1) ceramics were fabricated by the conventional mixed oxide method. The structural and microwave dielectric properties were investigated by the XRD, SEM, EDS and network analyzer. The sintering temperature and time were 1275°C-1350°C, 2 hours, respectively. In the XRD results of (1-x)MgTiO3-xBaTiO3 ceramics, the hexagonal BaMg 6Ti6O19 and ilmenite MgTiO3 structures were coexisted. In the case of the 0.9MgTiO3-0.1BaTiO3 ceramics sintered at 1325°C, dielectric constant, quality factor and temperature coefficient of resonant frequency were 32.67, 32665, -84.5 ppm/°C, respectively
Keywords :
Q-factor; X-ray diffraction; barium compounds; ceramics; dielectric materials; magnesium compounds; microwave materials; permittivity; scanning electron microscopy; sintering; 1275 to 1350 C; EDS; MgTiO3-BaTiO3; MgTiO3-BaTiO3 ceramic; SEM; XRD; dielectric constant; hexagonal structure; ilmenite structure; microwave dielectric properties; mixed oxide method; network analyzer; quality factor; sintering; structural properties; temperature coefficient of resonant frequency; Ceramics; Dielectric constant; Dielectric materials; Dielectric measurements; Microstructure; Q measurement; Resonant frequency; Temperature; X-ray diffraction; X-ray scattering;
Conference_Titel :
Electrical Insulating Materials, 2001. (ISEIM 2001). Proceedings of 2001 International Symposium on
Conference_Location :
Himeji
Print_ISBN :
4-88686-053-2
DOI :
10.1109/ISEIM.2001.973574
