期刊
JOURNAL OF ADVANCED CERAMICS
卷 11, 期 3, 页码 392-402出版社
SPRINGER
DOI: 10.1007/s40145-021-0541-7
关键词
microwave dielectric ceramics; Ce-2[Zr1-x(Al1-2Ta1-2)(x)](3)(MoO4)(9) (CZMAT); Phillips-Van Vechten-Levine (P-V-L) theory; low sintering temperature
资金
- Shandong Postdoctoral Innovative Talents Support Plan [SDBX2020010]
- National Natural Science Foundation of China [51972143]
- Shandong Provincial Natural Science Foundation [ZR2020KA003]
- Project of 20 Items of University of Jinan [2019GXRC017]
In this study, dense microwave dielectric ceramics of Ce-2[Zr1-x(Al1/2Ta1/2)(x)](3)(MoO4)(9) were prepared via the solid-state route, and their microstructures, sintering behaviors, and microwave dielectric properties were investigated. The results showed that Ce-2[Zr-0.94(Al1/2Ta1/2)(0.06)](3)(MoO4)(9) exhibited excellent dielectric properties at 850℃.
Dense microwave dielectric ceramics of Ce-2[Zr1-x(Al1/2Ta1/2)(x)](3)(MoO4)(9) (CZMAT) (x = 0.02-0.10) were prepared by the conventional solid-state route. The effects of (Al1/2Ta1/2)(4+) on their microstructures, sintering behaviors, and microwave dielectric properties were systematically investigated. On the basis of the X-ray diffraction (XRD) results, all the samples were matched well with Pr2Zr3(MoO4)(9) structures, which belonged to the space group R<(3)over bar >c. The lattice parameters were obtained using the Rietveld refinement method. The correlations between the chemical bond parameters and microwave dielectric properties were calculated and analyzed by using the Phillips-Van Vechten-Levine (P-V-L) theory. Excellent dielectric properties of Ce-2[Zr-0.94(Al1/2Ta1/2)(0.06)](3)(MoO4)(9) with a relative permittivity (epsilon(r)) of 10.46, quality factor (Q x f) of 83,796 GHz, and temperature coefficient of resonant frequency (tau(f)) of -11.50 ppm/degrees C were achieved at 850 degrees C.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据