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无机材料学报

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2007 , Vol. 22 >Issue 6: 1197 - 1200

DOI: https://doi.org/10.3724/SP.J.1077.2007.01197

研究论文

BaO-CeO2-TiO2微波介质陶瓷的烧结特性及物相组成

  • 周东祥 ,
  • 余晓华 ,
  • 王鹤 ,
  • 赵俊
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  • 华中科技大学电子科学与技术系, 武汉 430074

收稿日期: 2006-10-23

  修回日期: 2007-01-12

  网络出版日期: 2007-11-20

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Sintering Characters and Phase Composition of BaO-CeO2-TiO2 Microwave Dielectric Ceramics

  • ZHOU Dong-Xiang ,
  • YU Xiao-Hua ,
  • WANG He ,
  • ZHAO Jun
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  • Department of Electronic Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China

Received date: 2006-10-23

  Revised date: 2007-01-12

  Online published: 2007-11-20

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摘要

采用TG-DTA、SEM、EDAX、XRD等测试手段研究了BaO-CeO2-TiO2微波介质陶瓷的烧结特性及物相组成. BaO-CeO2-TiO2的预烧温度和烧结温度分别为900～1100℃和1250～1300℃. 结果表明: Ba 6-3x Ce 8+2x Ti 18 O 54(x=0.8)在1300℃下烧结后形成了由A、B两相共存的体系, 其中A、B两相的元素摩尔比分别为Ce:O=1.0:1.3, Ba:Ti:Ce:O=1.00:6.70:0.35:9.46. 此时体系的介电
常数为28.72, 品质因数为最高值4862.13GHz.

关键词： 微波介质陶瓷; BaO-CeO 2-TiO 2; 物相组成

本文引用格式

周东祥 , 余晓华 , 王鹤 , 赵俊 . BaO-CeO2-TiO2微波介质陶瓷的烧结特性及物相组成[J]. 无机材料学报, 2007 , 22(6) : 1197 -1200 . DOI: 10.3724/SP.J.1077.2007.01197

Abstract

The sintering characters and phase composition of BaO-CeO2-TiO2 were examined with TG-DTA, SEM, EDAX and XRD. The pretreating temperature and sintering temperature were 900--1100℃ and 1250--1300℃,respectively. The results indicate that the samples Ba 6-3x Ce 8+2x Ti 18 O54(x=0.8) sintered at 1300℃ consist of A and B phases, whose elements molar ratio are Ce:O=1.0:1.3 and Ba:Ti:Ce: O=1.00:6.70:0.35:9.46 respectively. And the above sintered samples with permittivity of 28.72 have the highest quality factor of 4862.13GHz.

Key words： microwave dielectric ceramics; BaO-CeO 2-TiO2; phase composition

参考文献

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