The Influence of Sintering Temperature on the Microwave Dielectric Properties of Mg₂SiO₄ Ceramics with CaO-B₂O₃-SiO₂ Addition

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• 作者：Hongyu Yang ; Enzhu Li ; Chengli Sun ; Shuxin Duan…
• 关键词：Mg2SiO4 ; CaO ; B2O3 ; SiO2 (CBS) ; MgSiO3 ; microwave dielectric properties
• 刊名：Journal of Electronic Materials
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：46
• 期：2
• 页码：1048-1054
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Optical and Electronic Materials; Characterization and Evaluation of Materials; Electronics and Microelectronics, Instrumentation; Solid State Physics;
• 出版者：Springer US
• ISSN：1543-186X
• 卷排序：46

文摘

Conventional solid-state methods were used to synthesize Mg₂SiO₄ ceramic at relatively low sintering temperatures with the assistance of CaO-B₂O₃-SiO₂ (CBS) glass. The effects of the CBS additions on the sintering behavior, crystal structures, microstructures, and microwave dielectric properties of Mg₂SiO₄ ceramic have been investigated in detail. The results indicate that the addition of CBS glass lowered the sintering temperature of Mg₂SiO₄ ceramic significantly. The Mg₂SiO₄ ceramic with 7 wt.% CBS addition sintered at 1325°C for 4 h shows excellent microwave dielectric properties: ε_r = 6.47, Q × f = 16,552 GHz, τ_f = −23.34 ppm/°C.