Title :
Microwave dielectric ceramics in the system ZrO2-TiO2-SnO2
Author :
Azough, F. ; Freer, R.
Author_Institution :
Manchester Univ., UK
Abstract :
In this study ceramics of composition Zr0.8Sn0.2 TiO4 have been prepared by the mixed oxide route using different divalent and trivalent mixed oxide additives. The effect of cooling rate after sintering, sintering atmosphere and additives on the structure and dielectric Q values is assessed. Low frequency (1500 Hz) dielectric measurements of capacitance and loss factor were performed at room temperature on polished discs, using a Wayne Kerr 6425 precision component analyser. High frequency dielectric measurements were performed at 5 GHz with a network analyser and sweep oscillator, using the Hakki and Coleman method (1960)
Keywords :
Q-factor; ceramics; crystal microstructure; dielectric losses; permittivity; sintering; tin compounds; zirconium compounds; 1.5 kHz; 5 GHz; Q values; ZrO2-TiO2-SnO2; additives; capacitance; cooling rate; dielectric measurements; loss factor; microwave dielectric ceramics; polished discs; preparation; room temperature; sintering atmosphere; structure;
Conference_Titel :
Dielectric Materials, Measurements and Applications, 1992., Sixth International Conference on
Conference_Location :
Manchester
Print_ISBN :
0-85296-551-6
