| 铌锑酸镁陶瓷的烧结和微波介电性能 |
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| 引用本文： | 苏未安,刘鹏,边小兵.铌锑酸镁陶瓷的烧结和微波介电性能[J].电子元件与材料,2005,24(8):11-13. |
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| 作者姓名： | 苏未安 刘鹏 边小兵 |
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| 作者单位： | 陕西师范大学物理学与信息技术学院,陕西,西安,710062;江西理工大学理学院,江西,赣州,341000;陕西师范大学物理学与信息技术学院,陕西,西安,710062 |
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| 基金项目： | 陕西师范大学校科研和教改项目 |
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| 摘 要： | 用固相反应法制备了一系列铌锑酸镁(Sb含量x≤2)陶瓷,研究了该陶瓷的烧结性能、物相结构和微波介电性能。结果表明,当x≤1.6时,铌锑酸镁形成了连续固溶体,少量Sb5+对Nb5+的取代(0.4≤x≤0.8),使得陶瓷最佳烧结温度从1400℃降到1300℃,而材料εr和Q·f值没有降低。1300℃,5h烧结的铌锑酸镁陶瓷具有优异的微波介电性能:εr为11.61,Q·f为169820GHz,τf为–54.4×10–6℃–1。
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| 关 键 词： | 无机非金属材料 微波介质陶瓷 铌锑酸镁(MNS)陶瓷 连续固溶体 |
| 文章编号： | 1001-2028(2005)08-0011-03 |
Influence of Sb Substitutions for Nb on Sintering Behavior and Dielectric Properties of MNS Microwave Ceramics |
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| SU Wei-an,LIU Peng,BIAN Xiao-bing.Influence of Sb Substitutions for Nb on Sintering Behavior and Dielectric Properties of MNS Microwave Ceramics[J].Electronic Components & Materials,2005,24(8):11-13. |
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| Authors: | SU Wei-an LIU Peng BIAN Xiao-bing |
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| Abstract: | The effects of Sb5+ substitution for Nb5+ in the Mg4(Nb2–xSbx)O9(MNS) (0≤x≤2) ceramics on the sintering behavior, phase structure and microwave dielectric properties were investigated. The results of X-ray diffraction (XRD) show that when x smaller than and equal to 1.6, MNS are continuous solid solutions. Small amount of Sb5+ substitution for Nb5+ (0.4 ≤x≤0.8), can lower the sintering temperature about 100 ℃(from 1 400 ℃ to 1 300 ℃). Typically, the specimens of MNS sintered at 1 300 ℃ for 5 h show optimum microwave dielectric properties: εr=11.61,Q·f =169 820 GHz. |
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| Keywords: | inorganic non-metallic materials microwave dielectric ceramics MNS ceramics continuous solid solutions |
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