| 中温烧结0.6Mg_4Nb_2O_9-0.4SrTiO_3复相陶瓷 |
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| 引用本文： | 裴翠锦,姚国光,田秀劳.中温烧结0.6Mg_4Nb_2O_9-0.4SrTiO_3复相陶瓷[J].西安邮电学院学报,2010,15(3):119-121,127. |
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| 作者姓名： | 裴翠锦 姚国光 田秀劳 |
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| 作者单位： | 1. 运城学院应用化学系,山西运城,044000
2. 西安邮电学院理学院,陕西西安,710121 |
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| 基金项目： | 陕西省自然科学基金资助项目 |
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| 摘 要： | 采用传统固态反应方法制备0.6Mg4Nb2O9-0.4SrTiO3复合陶瓷。研究LiF掺杂对其烧结特性、相结构和微观形貌的的影响。通过X射线衍射(XRD)和扫面电镜(SEM)观察样品的相组成和显微结构。实验结果表明:1.5 wt%LiF添加,可将Mg4Nb2O9/SrTiO3陶瓷的致密化烧结温度从1300℃降至1100℃;XRD表明除主相Mg4Nb2O9、SrTiO3外,还有少量新相Sr(Ti1-xNbx)O3+δ生成。
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| 关 键 词： | 复合陶瓷 X射线衍射 扫描电镜 LiF掺杂 |
The middle-temperature sintering of 0.6Mg4Nb2O9-0.4SrTiO3 composite ceramics |
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| PEI Cui-jin,YAO Guo-guan,TIAN Xiu-lao.The middle-temperature sintering of 0.6Mg4Nb2O9-0.4SrTiO3 composite ceramics[J].Journal of Xi'an Institute of Posts and Telecommunications,2010,15(3):119-121,127. |
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| Authors: | PEI Cui-jin YAO Guo-guan TIAN Xiu-lao |
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| Affiliation: | 1.Department of Applied Chemistry,Yun cheng University,Yuncheng 044000,China;2.School of Science,Xi＇an University of Posts and Telecommunications,Xi＇an 710021,China) |
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| Abstract: | The 0.6Mg4Nb2O9-0.4SrTiO3 composite ceramics was prepared by conventional solid-state reaction method.The effects of LiF addtion on the sintering behavior,phase compositions and microstructure of 0.6Mg4Nb2O9-0.4SrTiO3 specimen were studied.The samples were analyzed using X-ray diffraction and scanning electron microscopy techniques.The densification sintering temperature of 0.6Mg4Nb2O9＋0.4SrTiO3 is significantly lowed from 1300℃ to 1175℃ with 1.5 wt% LIF addtion.The main phases of Mg4Nb2O9 and SrTiO3 combined with small amount of Sr（Ti1-xNbx）O3＋δ were detected by XRD. |
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| Keywords: | composite ceramics XRD SEM LiF-doped |
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