材料科学
烧结
扫描电子显微镜
陶瓷
相对密度
复合数
微波食品加热
拉曼光谱
电介质
相对介电常数
分析化学(期刊)
介电常数
能量色散X射线光谱学
复合材料
矿物学
光学
光电子学
化学
物理
色谱法
量子力学
作者
Yuping Ji,Kexing Song,Xiang Liu,Hadi Barzegar Bafrooei,Dawei Wang
标识
DOI:10.3389/fmats.2019.00256
摘要
Cold sintering process was successfully employed to fabricate (1-x) Li2MoO4 - xMg2SiO4 (LMO-xMSO) microwave dielectric ceramics for 5G enabled technology. Dense LMO-MSO ceramics were obtained with high relative density in the range of 85%-100% under the condition of 200 °C and 500 MPa in an hour. X-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDS) and Raman spectroscopy showed that both LMO and MSO phases coexist in all composite ceramics, and there is no detectable secondary phase. Composites in LMO-xMSO (0 < x < 0.3) resonated at microwave frequency (~9 GHz) with low relative permittivity (εr) of 5.05~5.3 and high microwave quality factor (Q × f) of 9450 ~ 24320 GHz, which are attractive for the applications of 5G enabled components.
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