| ZnO-B_2O_3玻璃对Mg_2TiO_4微波介质陶瓷结构和性能的影响 |
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| 引用本文： | 李昭强,汪小红,吕文中.ZnO-B_2O_3玻璃对Mg_2TiO_4微波介质陶瓷结构和性能的影响[J].电子元件与材料,2012(8):12-15. |
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| 作者姓名： | 李昭强 汪小红 吕文中 |
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| 作者单位： | 华中科技大学电子科学与技术系 |
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| 基金项目： | 新世纪杰出人才资助计划(No.NCET-07-329);中央高校基本科研业务费专项资金资助项目(No.2011QN008) |
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| 摘 要： | 利用传统固相烧结法制备了ZnO-B2O3玻璃掺杂的Mg2TiO4微波介质陶瓷,研究了ZnO-B2O3玻璃掺杂对所制陶瓷相成分、微观形貌和微波介电性能的影响。结果表明:ZnO-B2O3玻璃掺杂能使Mg2TiO4陶瓷的致密化温度降低200℃左右。当Mg2TiO4中掺杂质量分数2%的ZnO-B2O3玻璃时,经1 300℃烧结所得陶瓷微波性能较好:εr=13.62、Q.f=101 275 GHz、τf=–51×10–6/℃。
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| 关 键 词： | Mg2TiO4陶瓷 ZnO-B2O3玻璃 掺杂 微波介电性能 |
Effects of ZnO-B2O3 glass on the microstructures and properties of Mg2TiO4 microwave dielectric ceramics |
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| Affiliation: | LI Zhaoqiang,WANG Xiaohong,L? Wenzhong(Department of Electronic Science and Technology,Huazhong University of Science and Technology,Wuhan 430074,China) |
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| Abstract: | The ZnO-B2O3 glass(ZBG) doping Mg2TiO4 ceramics were prepared by solid-stated reaction route.The effects of ZnO-B2O3 glass doping on phase compositions,microstructures and microwave dielectric properties of prepared ceramics were investigated.The results show that the ZnO-B2O3 glass can effectively improve the sinterability of the ceramics and lower its densification temperature by about 200℃.When 2%(mass fraction) is doped in the Mg2TiO4-ZBG system,a ceramic with good microwave dielectric properties sintered at 1 300 ℃ is obtained.The properties are as follows: εr=13.62,Q·f = 101 275 GHz,τf =-51×10-6/℃. |
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| Keywords: | Mg2TiO4 ceramics ZnO-B2O3 glass doping microwave dielectric properties |
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