| SiO2-Al2O3-ZnO-SrO-La2O3系微晶玻璃性能的研究 |
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| 引用本文： | 王伟,陈庚,戚凭.SiO2-Al2O3-ZnO-SrO-La2O3系微晶玻璃性能的研究[J].青岛大学学报(自然科学版),2011,24(4):40-44,50. |
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| 作者姓名： | 王伟 陈庚 戚凭 |
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| 作者单位： | 青岛大学物理科学学院,山东青岛,266071 |
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| 摘 要： | SiO2-Al2O3-ZnO-SrO-La2O3为基本成分制备了微晶玻璃样品，在750℃下不同时间热处理。用微波微扰法测量其微波介电性能，结合扫描电镜和X射线衍射分析了其晶相。结果表明，随保温时间的延长，样品的主晶相经历了SrZrSi2O7→SrAl2Si2O8→新玻璃相La2ZrTiO7的变化。SrAl2Si2O8相是亚稳过渡相。反应生成的新玻璃相La2ZrTiO7的Q值高达1800，温度系数约为＋500×10^-6／℃。
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| 关 键 词： | 微晶玻璃 介电常数 品质因数 温度系数 微波 |
Properties of SiO_2-Al_2O_3-ZnO-SrO-La_2O_3 Glass-Ceramic System |
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| WANG Wei,CHEN Geng,QI Ping.Properties of SiO_2-Al_2O_3-ZnO-SrO-La_2O_3 Glass-Ceramic System[J].Journal of Qingdao University(Natural Science Edition),2011,24(4):40-44,50. |
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| Authors: | WANG Wei CHEN Geng QI Ping |
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| Institution: | WANG Wei,CHEN Geng,QI Ping(College of Physical Science,Qingdao University,Qingdao 266071,China) |
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| Abstract: | The basic components of glass-ceramic specimens,which are derived by heat-treatment with different time at 750 ℃,were SiO2-Al2O3-ZnO-SrO-La2O3.The dielectric property was measured by perturbation method,combined with SEM and XRD to analyze crystal phase.Results show that with the increase of holding time,the main phase of specimens experiences a transformation as SrZrSi2O7 → SrAl2Si2O8 → new glass phase La2ZrTiO7.SrAl2Si2O8 phase is a metastable transition phase.Quality factor of the new glass phase La2ZrTiO7 obtained is 1 800,and temperature coefficient is 500×10-6/℃. |
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| Keywords: | glass-ceramic dielectric constant quality factor temperature coefficient microwave |
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