| 氧化铈对堇青石基微晶玻璃介电性能的影响 |
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| 引用本文： | 陈国华,刘心宇.氧化铈对堇青石基微晶玻璃介电性能的影响[J].压电与声光,2006,28(2):202-204. |
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| 作者姓名： | 陈国华 刘心宇 |
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| 作者单位： | 桂林电子工业学院,信息材料科学与工程系,广西,桂林,541004;中南大学,材料科学与工程学院,湖南,长沙,410083 |
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| 基金项目： | 广西自然科学基金资助项目(No.0339066) |
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| 摘 要： | 采用X-射线衍射(XRD)、扫描电镜(SEM)等手段研究了CeO2在堇青石基玻璃烧结中的作用及其添加量对微晶玻璃的烧结和性能的影响。结果表明,CeO2的加入可有效促进微晶玻璃的烧结致密化;随着CeO2加入量的增加,烧结样品的介电常数呈现先增加后降低的趋势,且与密度变化曲线相似;当CeO2添加量达4%(质量分数)时样品的介质损耗因子最低(≈0.2%)。
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| 关 键 词： | 氧化铈 堇青石微晶玻璃 烧结 介电性能 |
| 文章编号： | 1004-2474(2006)02-0202-03 |
| 收稿时间： | 2004-06-24 |
| 修稿时间： | 2004年6月24日 |
Effect of Ceria on Dielectric Properties of Cordierite-based Glass-ceramics |
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| CHEN Guo-hua,LIU Xin-yu.Effect of Ceria on Dielectric Properties of Cordierite-based Glass-ceramics[J].Piezoelectrics & Acoustooptics,2006,28(2):202-204. |
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| Authors: | CHEN Guo-hua LIU Xin-yu |
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| Affiliation: | 1. Dept. of Information Materials Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, China; 2. Institute of Materials Science and Engineering, Central South University, Changsha 410083, China |
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| Abstract: | The effects of CeO_2 on the sintering characteristics and properties of cordierite-based glass-ceramics with non-stoichiometric composition were studied by X-ray diffraction(XRD) and scanning electron microscopy(SEM) and so on.The results showed that CeO_2 addition obviously enhance the densification of cordierite-based glass.The dielectric constant of the samples increases firstly and then decreases with the addition of CeO_2,and their curves similar to the density curve.With the addition of 4%(mass factor) CeO_2,the dissipation factor of the sample shows the lowest value(about 0.2%). |
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| Keywords: | ceria cordierite glass-ceramics sintering dielectric properties |
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