Novel glass-free low-temperature fired microwave dielectric ceramics: Bi(Ga1/3Mo2/3)O4. Issue 3 (15th February 2016)

• Record Type: Journal Article
• Authors: Pang, Li-Xia; Liu, Wei-Guo; Zhou, Di; Yue, Zhen-Xing
• Is Part Of: Ceramics international. Volume 42:Issue 3(2016)
• Page Start: 4574
• Page End: 4577
• Publication Date: 2016-02-15
• Subjects: A: Sintering -- B: Spectroscopy -- C: Dielectric properties; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2015.11.152
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Novel glass-free low temperature firing microwave dielectric ceramics, Bi(Ga1/3 Mo2/3 )O4, with ordered scheelite structure, were prepared through a conventional solid state reaction method. Dense ceramics were prepared at sintering temperatures from 800 to 860 °C. The Bi(Ga1/3 Mo2/3 )O4 compound was crystallized with B-site ordered Scheelite-type structure with space group C2/c. The Bi(Ga1/3 Mo2/3 )O4 ceramics can be well sintered at about 830 °C, exhibiting good microwave dielectric properties of ε r ~26.1, Qf~49, 800 GHz, and TCF~−86 ppm/°C. Intrinsic dielectric parameters of the Bi(Ga1/3 Mo2/3 )O4 ceramics were estimated by fitting far-infrared (FIR) reflectance spectra with the classical harmonic oscillator model.