Al2O3掺杂对Ba4Sm9.33Ti18O54陶瓷显微结构和介电性能的影响

doi:10.3724/SP.J.1077.2012.12192

无机材料学报 ›› 2012, Vol. 27 ›› Issue (12): 1266-1270.DOI: 10.3724/SP.J.1077.2012.12192 CSTR: 32189.14.SP.J.1077.2012.12192

Al₂O₃掺杂对Ba₄Sm_9.33Ti₁₈O₅₄陶瓷显微结构和介电性能的影响

姚晓刚, 林慧兴, 姜少虎, 陈玮, 罗澜

(中国科学院上海硅酸盐研究所, 上海200050)

收稿日期:2012-03-29 修回日期:2012-05-24 出版日期:2012-12-20 网络出版日期:2012-11-19
作者简介:姚晓刚(1985–), 男, 博士研究生. E-mail: rockyao@student.sic.ac.cn

Effects of Al₂O₃-doping on the Microstructure and Dielectric Properties of Ba₄Sm_9.33Ti₁₈O₅₄ Ceramics

YAO Xiao-Gang, LIN Hui-Xing, JIANG Shao-Hu, CHEN Wei, LUO Lan

(Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China)

Received:2012-03-29 Revised:2012-05-24 Published:2012-12-20 Online:2012-11-19
About author:YAO Xiao-Gang. E-mail: rockyao@student.sic.ac.cn

摘要/Abstract

摘要： 采用固相反应法制备了Ba₄Sm_9.33Ti₁₈O₅₄ (简称BST)•xwt%Al₂O₃(x=0~1.5)微波介质陶瓷. 研究了掺杂Al₂O₃对BST陶瓷的显微结构和介电性能的影响. 扫描电镜和能谱分析结果显示: 未掺杂的BST陶瓷中有少量Sm₂Ti₂O₇相, 随着增加Al₂O₃掺入量, Sm₂Ti₂O₇相消失, BST陶瓷中先后产生了BaTi₄O₉ (x≥0.6) 和BaAl₂Ti₅O₁₄ (x≥1.0) 两种新相. 介电性能测试结果表明Sm₂Ti₂O₇相的消失以及少量BaTi₄O₉相的形成, 能显著提高BST陶瓷的Qf值, 但会降低陶瓷的介电常数. 当Al₂O₃的掺入量从0.6wt%增加到1.0wt%时, BaTi₄O₉相的量逐渐增加, 引起BST陶瓷的Qf值略微下降. BaAl₂Ti₅O₁₄相的产生会同时降低BST陶瓷的介电常数和Qf值. 掺入0.6wt% Al₂O₃的BST陶瓷在1340℃烧结3 h后具有最佳的介电性能: ε_r=74.7, Qf =10980 GHz, τ_f =–11.8×10^-6/℃.

关键词: 微波介质陶瓷, Ba₄Sm_9.33Ti₁₈O₅₄, Al₂O₃, 介电性能

Abstract: Ba₄Sm_9.33Ti₁₈O₅₄ (BST)• xwt%Al₂O₃ (x=0–1.5) microwave dielectric ceramics were prepared by solid state reaction method. The effects of Al₂O₃ on the microstructure and dielectric properties of BST ceramics were studied. With the increasing amount of Al₂O₃, the Sm₂Ti₂O₇ phase observed in the undoped BST ceramics disappeared and new phases BaTi₄O₉ (x≥0.6) and BaAl₂Ti₅O₁₄ (x≥1.0) were found in BST ceramics successively as identified by SEM and EDS analysis. It was showed that the disappearance of Sm₂Ti₂O₇ phase and the formation of a small amount of BaTi₄O₉ phase significantly improved the Qf values of the BST ceramics, at the cost of dielectric constant. Further increasing the amount of Al₂O₃ produced more BaTi₄O₉ led to a slight decrease in Qf values. However, both the dielectric constant and Qf values were deteriorated with the appearance of BaAl₂Ti₅O₁₄. BST ceramics with 0.6wt% Al₂O₃ doped sintered at 1340℃ for 3 h obtained the best dielectric properties: ε_r=74.7, Qf =10980 GHz, τ_f = –11.8×10^-6/℃.

Key words: microwave dielectric ceramics, Ba₄Sm_9.33Ti₁₈O₅₄, Al₂O₃, dielectric properties

中图分类号:

TQ174

姚晓刚, 林慧兴, 姜少虎, 陈玮, 罗澜. Al₂O₃掺杂对Ba₄Sm_9.33Ti₁₈O₅₄陶瓷显微结构和介电性能的影响[J]. 无机材料学报, 2012, 27(12): 1266-1270.

YAO Xiao-Gang, LIN Hui-Xing, JIANG Shao-Hu, CHEN Wei, LUO Lan. Effects of Al₂O₃-doping on the Microstructure and Dielectric Properties of Ba₄Sm_9.33Ti₁₈O₅₄ Ceramics[J]. Journal of Inorganic Materials, 2012, 27(12): 1266-1270.

参考文献

[1] Reaney I M, Iddles D. Microwave dielectric ceramics for resonators and filters in mobile phone networks. J. Am. Ceram. Soc., 2006, 89(7): 2063–2072.

[2] Wersing W. Microwave ceramics for resonators and filters. Curr. Opin. Solid State Mater. Sci., 1996, 1(5): 715–731.

[3] Iqbal Y, Manan A,, Reaney I M. Low loss Sr1-xCaxLa4Ti5O17 microwave dielectric ceramics. Mater. Res. Bull., 2011, 46(7): 1092–1096.

[4] 波扎. 微波工程, 3版. 北京: 电子工业出版社, 2006.

[5] Bahel S, Narang S B. Optimization of dielectric properties of barium rare earth titanate by complex substitution. Ceram. Int., 2010, 36: 251–255.

[6] Yu X H, Zhou D X, Gong S P. Development of BaO-Ln2O3-TiO2 microwave dielectric cerammics. Materials Review, 2007, 21(2): 30–33.

[7] Ohsato H, Ohhashi T, et al. Microwave dielectric properties and structure of the Ba6-3xSm8+2xTi18O54 solid solution. Jpn. J. Appl. Phys, 1995, 34: 187–191.

[8] Ohsato H. Science of tungstenbronze-type like Ba6-3xR8+2xTi18O54 (R=rare earth) microwave dielectric solid solutions. J. Euro. Ceram. Soc., 2001, 21: 2703–2711.

[9] Chen X M, Li Y. A- and B site cosubstituted Ba6-3xSm8+2xTi18O54 microwave dielectric ceramics. J. Am. Ceram. Soc., 2002, 85(3): 579–584.

[10] Yao X G, Lin H X, Chen W, et al. Anti-reduction of Ti4+ in Ba4.2Sm9.2Ti18O54 ceramics by doping with MgO, Al2O3 and MnO2. Ceram. Int., 2012, 38(4): 3011–3016.

[11] Mizuta M, Oshato H, Uenoyamo K, et al. Formation of tungsten bronze-type (Ba6-3xSm8+2x)αTi18-yAlyO54(α=l+y/36) solid solutions and microwave dielectric properties. Jpn. J. Appl. Phys., 1996, 35: 5065–5068.

[12] Shannon R D. Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides. Acta Cryst. A, 1976, 32(5): 751–767.

[13] Mhaisalkar S G, Readey D W, Akbar S A. Microwave dielectric properties of doped BaTi4O9. J. Am. Ceram. Soc., 1991, 78(4): 1894–1898.

[14] Wu J M, Chang M C, Yao P C. Reaction sequence and effects of calcination and sintering on microwave properties of (Ba,Sr)O-Sm2O3-TiO2 Ceramics. J. Am. Ceram. Soc., 1990, 73(6): 1599–1605.

[15] 姜建华. 无机非金属材料工艺原理. 北京: 化学工业出版社, 2005.

[16] Guo M, Gong S P, et al. A new temperature stable microwave dielectric ceramics: ZnTiNb2O8 sintered at low temperatures. J. Alloys Compd., 2011, 509(20): 5988–5995.

[17] Li M, Feteira A, Mirsaneh M, et al. Influence of nonstoichiometry on extrinsic electrical conduction and microwave dielectric loss of BaCo1/3Nb2/3O3 ceramics. J. Am. Ceram. Soc., 2010, 93(12): 4087–4095.

[18] Lyashenko L P, Belov D A, Shcherbakova L G. Conductivity of Sm2TiO5 and Sm2Ti2O7. Inorg. Mater., 2008, 44(12): 1349–1353.

[19] Mhaisalker S G, Readey D W, Akbar S A. Microwave dielectric properties of doped BaTi4O9. J. Am. Ceram. Soc., 1991, 74(8): 1894–1898.

[20] Ubic R, Reaney I M, Lee W E. Microwave dielectric properties of solid-solution phase in system BaO-Ln2O3-TiO2(Ln=Lanthanide cation). Int. Mater. Rev., 1998, 43(5): 205–219.

[21] Reaney I M, Ubic R. Dielectric and structural characteristics of perovskites and related materials as a function of tolerance factor. Ferroelectrics, 1999, 228(1): 23–38.

Al₂O₃掺杂对Ba₄Sm_9.33Ti₁₈O₅₄陶瓷显微结构和介电性能的影响

Effects of Al₂O₃-doping on the Microstructure and Dielectric Properties of Ba₄Sm_9.33Ti₁₈O₅₄ Ceramics

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	李捷, 罗志新, 崔阳, 张广珩, 孙鲁超, 王京阳. 大气等离子喷涂Y₃Al₅O₁₂/Al₂O₃陶瓷涂层的CMAS腐蚀抗力[J]. 无机材料学报, 2024, 39(6): 671-680.
[2]	朱钦塨, 赵高凌, 韩高荣. 复合持续时间对P₂O₅-Al₂O₃异相复合玻璃结构和力学性能的影响[J]. 无机材料学报, 2023, 38(2): 170-176.
[3]	陈雷, 胡海龙. 柔性PDMS基介电复合材料的电场及击穿损伤形貌演变规律研究[J]. 无机材料学报, 2023, 38(2): 155-162.
[4]	李海燕, 旷峰华, 吴昊龙, 刘小根, 包亦望, 万德田. 残余拉应力的温度依赖性及其对裂纹扩展行为的影响[J]. 无机材料学报, 2023, 38(11): 1265-1270.
[5]	韦婷婷, 徐华蕊, 朱归胜, 龙神峰, 张秀云, 赵昀云, 江旭鹏, 宋金杰, 郭宁杰, 龚祎鹏. BaTiO₃陶瓷的低温冷烧结制备及性能研究[J]. 无机材料学报, 2022, 37(8): 903-910.
[6]	姚晓刚, 彭海益, 顾忠元, 何飞, 赵相毓, 林慧兴. 聚苯醚/钙镧钛微波复合基板[J]. 无机材料学报, 2022, 37(5): 493-498.
[7]	叶芬, 江向平, 陈云婧, 黄枭坤, 曾仁芬, 陈超, 聂鑫, 成昊. (0.96NaNbO₃-0.04CaZrO₃)-xFe₂O₃反铁电陶瓷的介电及储能性能研究[J]. 无机材料学报, 2022, 37(5): 499-506.
[8]	李海燕, 郝鸿渐, 田远, 汪长安, 包亦望, 万德田. 残余应力对涂覆Al₂O₃涂层的ZrO₂陶瓷的强度和裂纹扩展阻力的影响[J]. 无机材料学报, 2022, 37(4): 467-472.
[9]	刘国仟, 闫长海, 张可强, 金华, 何汝杰. 立体光刻增材制造中固含量对Al₂O₃陶瓷性能的影响[J]. 无机材料学报, 2022, 37(3): 353-360.
[10]	孙扬善, 杨治华, 蔡德龙, 张正义, 柳琪, 房树清, 冯良, 石丽芬, 王友乐, 贾德昌. 粉末烧结法制备α-堇青石基玻璃陶瓷的析晶动力学和性能[J]. 无机材料学报, 2022, 37(12): 1351-1357.
[11]	程梓秋, 王雁斌, 刘欣, 代正发, 陈昊鸿, 田丰, 陈鹏辉, 李江. 高功率激光照明用Al₂O₃-YAG:Ce复相陶瓷荧光体的组分设计与性能优化[J]. 无机材料学报, 2022, 37(12): 1358-1364.
[12]	张晓燕, 刘馨玥, 闫金华, 谷耀行, 齐西伟. 钙钛矿型(La_0.2Li_0.2Ba_0.2Sr_0.2Ca_0.2)TiO₃高熵氧化物陶瓷的制备及性能研究[J]. 无机材料学报, 2021, 36(4): 379-385.
[13]	申璐, 汪德文, 黄荣, 都时禹, 黄庆. AlF₃掺杂氧化铝陶瓷的高灵敏辐照诱导相分离行为[J]. 无机材料学报, 2021, 36(1): 95-100.
[14]	董梦悦, 徐卫卫, 赵静, 底兰波, 张秀玲. 制备方法对Ru/γ-Al₂O₃与等离子体共活化CO₂甲烷化反应的影响[J]. 无机材料学报, 2020, 35(5): 567-572.
[15]	王通,王渊浩,杨海波,高淑雅,王芬,鲁雅文. BaTiO₃-ZnNb₂O₆陶瓷介电及储能性能研究[J]. 无机材料学报, 2020, 35(4): 431-438.