Novel temperature stable BaSrVO microwave dielectric ceramics with ultra-low sintering temperature.

Autor: Yao, Guo-Guang, Pei, Cui-Jin, Liu, Peng, Xing, Hui-Yu, Fu, Long-Xi, Liang, Bai-Cheng
Předmět:
Zdroj: Journal of Materials Science: Materials in Electronics; Sep2017, Vol. 28 Issue 18, p13283-13288, 6p
Abstrakt: New temperature stability BaSrVO (0.35 ≤ x ≤ 0.55) microwave dielectric ceramics prepared by the conventional solid-state route were investigated. X-ray diffraction confirmed that all the specimens formed a solid solution single phase with orthorhombic structure. The microwave dielectric properties strongly depended on the compositions, densification and microstructure of the specimens. Furthermore, partial Sr ions substitution for Ba ions in BaSrVO lattices not only successfully improved the temperature stability of BaVO-based ceramic but also promoted the sinterability of SrVO-based one. Out of these compositions, BaSrVO sintered at 625 °C exhibited a near-zero τ together with a low permittivity ε ~ 11.5 and a quality factor Q × f ~ 14 100 GHz, which also showed good chemical compatibility with Al electrodes. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index