Dielectric Properties and Microstructure of MgO-TiO2-ZnO-CaO Ceramics

The effects of CaTiO 3 addition on the microstructure, phase formation, and dielectric properties of MgO-TiO 2 -ZnO ceramics were investigated. The sintering temperature of CaTiO 3 -doped (Mg 0.63 Zn 0.37 )TiO 3 ceramics can be lowered to 1290°C when the additive is used. The dielectric properties a...

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Veröffentlicht in:	Journal of electronic materials 2011-03, Vol.40 (3), p.355-360
Hauptverfasser:	Zhang, Yonggang, Wu, Shunhua, Liu, Jinxu, Gao, Shunqi
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Characterization and Evaluation of Materials Chemistry and Materials Science Electronic equipment and fabrication. Passive components, printed wiring boards, connectics Electronics Electronics and Microelectronics Exact sciences and technology Instrumentation Materials Materials Science Optical and Electronic Materials Solid State Physics
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Zusammenfassung:	The effects of CaTiO 3 addition on the microstructure, phase formation, and dielectric properties of MgO-TiO 2 -ZnO ceramics were investigated. The sintering temperature of CaTiO 3 -doped (Mg 0.63 Zn 0.37 )TiO 3 ceramics can be lowered to 1290°C when the additive is used. The dielectric properties are found to be strongly correlated with the amount of CaTiO 3 addition. At 1290°C, (Mg 0.63 Zn 0.37 )TiO 3 ceramic with 1.0 mol% CaTiO 3 exhibited a dielectric constant ε r of 23.3, dielectric loss tan δ of 1 × 10 −5 , and temperature coefficient of capacitance (TCC) of 10 ppm/°C.
ISSN:	0361-5235 1543-186X
DOI:	10.1007/s11664-010-1478-8