Ca (Nb2/3Li1/3)xTi1−xO3−δ (CNLTOX)的微波介电性能

2011 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC 2011) Pub Date : 2011-10-01 DOI:10.1109/IMOC.2011.6169266

A. C. S. Costa, R. D. S. Costa, F. W. de O. Amarante, T. Fernandes, M. D. da Silva, A. Sombra, G. D. Saraiva

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引用次数: 0

摘要

采用常规固相法制备了改性CaTiO3 (CTO)陶瓷。样品属于pnm空间群，呈正交结构。研究了Ca[(Li1/3Nb2/3)xTi1−x]O3−δ在焙烧900℃(5h)和烧结1000℃(3h)时的微波介电性能。介质介电常数随钛量的减少而减小。温度系数在谐振频率τf上随X值的增大而减小。

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Microwave dielectric properties of Ca (Nb2/3Li1/3)xTi1−xO3−δ (CNLTOX)

Modified CaTiO3 (CTO) ceramics were prepared by the conventional solid-state method. The samples belong to the Pbnm spatial group, showing an orthorhombic structure. The microwave dielectric properties of the Ca[(Li1/3Nb2/3)xTi1−x]O3−δ for ball-milled samples with ratio of 2.4 balls/g, which were calcinated at 900°C (during 5h) and sintered at 1000°C (during 3h) were investigated. The dielectric permittivity decreased with the decreasing of titanium amount. A decrease in the temperature coefficient in resonant frequency (τf) was observed with the increase of the X value.

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2011 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC 2011)

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