Effects of (Mg1/3Sb2/3)4+ substitution on the structure and microwave dielectric properties of Ce2Zr3(MoO4)9 ceramics
Autor: | Jiajia Sun, Wenhong Tao, Lintao Liu, Ningkang Zhang, Xu Zhou, Haitao Wu, Huazhang Sun |
---|---|
Rok vydání: | 2021 |
Předmět: |
crystal structure
Materials science microwave dielectric property Scanning electron microscope Analytical chemistry Clay industries. Ceramics. Glass 02 engineering and technology Dielectric Crystal structure 01 natural sciences 0103 physical sciences Ceramic Spectroscopy Phillips-van Vechten-Levine (P-V-L) theory 010302 applied physics Rietveld refinement 021001 nanoscience & nanotechnology Microstructure Electronic Optical and Magnetic Materials TP785-869 (Mg1/3Sb2/3) doping visual_art Ceramics and Composites visual_art.visual_art_medium 0210 nano-technology Temperature coefficient |
Zdroj: | Journal of Advanced Ceramics, Vol 10, Iss 4, Pp 778-789 (2021) |
ISSN: | 2227-8508 2226-4108 |
DOI: | 10.1007/s40145-021-0472-3 |
Popis: | Ce2[Zr1−x(Mg1/3Sb2/3)x]3(MoO4)9 (0.02 ⩽ x ⩽ 0.10) ceramics were prepared by the traditional solid-state method. A single phase, belonging to the space group of $$R⩈erline 3 c$$ R 3 ¯ c , was detected by using X-ray diffraction at the sintering temperatures ranging from 700 to 850 °C. The microstructures of samples were examined by applying scanning electron microscopy (SEM). The crystal structure refinement of these samples was investigated in detail by performing the Rietveld refinement method. The intrinsic properties were calculated and explored via far-infrared reflectivity spectroscopy. The correlations between the chemical bond parameters and microwave dielectric properties were calculated and analyzed by Phillips-van Vechten-Levine (P-V-L) theory. Ce2[Zr0.94(Mg1/3Sb2/3)0.06]3(MoO4)9 ceramics with excellent dielectric properties were sintered at 725 °C for 6 h (εr = 10.37, Q×f = 71,748 GHz, and τf = −13.6 ppm/°C, εr is the dielectric constant, Q×f is the quality factor, and τf is the temperature coefficient of resonant frequency). |
Databáze: | OpenAIRE |
Externí odkaz: |