Title :
The microwave dielectric characteristics of glass-doped Al2O3-TiO2 ceramics
Author :
Tzou, W.C. ; Yang, C.F. ; Chang, S.L. ; Chen, Y.C. ; Cheng, P.-S.
Author_Institution :
Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan
Abstract :
MgO-CaO-Al2O3-SiO2 (MCAS) glass is used as a sintering aid to improve the sinterability of Al2O3-TiO2 ceramics. The densification of the 2wt%-MCAS-glass-added 92 mol%Al2O3-8 mol%TiO2 ceramics can be performed well at lower sintering temperatures of 1300∼1350°C. In this study, the sintering temperatures not only have influences on the crystalline phases of MCAS-doped Al2O3-TiO2 ceramics, but also have influences on the microwave dielectric characteristics.
Keywords :
Q-factor; alumina; ceramics; densification; materials testing; microwave materials; permittivity; sintering; titanium compounds; 1300 to 1350 degC; Al2O3-TiO2; MCAS glass sintering aid; MCAS glass-doped ceramics; MgO-CaO-Al2O3-SiO2; Q factor; ceramic densification; ceramic sinterability; ceramics crystalline phases; microwave dielectric characteristics; permittivity; resonant frequency; sintering temperatures; Ceramics; Composite materials; Crystallization; Dielectric materials; Dielectric measurements; Glass; Powders; Resonant frequency; Temperature; X-ray scattering;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2002. Proceedings. ICMMT 2002. 2002 3rd International Conference on
Print_ISBN :
0-7803-7486-X
DOI :
10.1109/ICMMT.2002.1187904
