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Sintering mechanism and microwave dielectric properties of BaTi4O9-BBZ composite for LTCC technology
Ren, Haishen1,2; Xie, Tianyi1,3; Dang, Mingzhao1,2; Jiang, Shaohu1; Lin, Huixing1; Luo, Lan1
2017
发表期刊Ceramics International
ISSN02728842
卷号43期号:15页码:12863-12869
摘要A low temperature co-fired ceramic (LTCC) material was fabricated by mixing BaTi4O9ceramic with BaO-B2O3-ZnO (BBZ) glass. The sintering mechanism was further analyzed through the wetting behavior, activation energy, phase evolution, microstructure and microwave dielectric properties of the BaTi4O9-BBZ composite. The results show that the sintering temperature of the BaTi4O9ceramics can be significantly lowered from 1300 to 925 °C by the BBZ glass. This is due to the three-stage partially reactive liquid assisted sintering process which consists of glass redistribution and local grains rearrangement, solution-reprecipitaion including glass crystallization and reactions between the glass and ceramic, and global grain rearrangement, closure of pores and viscous flow. XRD patterns exhibit that BaTi4O9reacts with the crystallization phase of BBZ glass obviously during sintering to form two new phases BaTi(BO3)2and Ba4Ti13O30. The activation energy of BaTi4O9ceramic is calculated to be 520.9 ± 40.46 kJ/mol, while that of BaTi4O9-BBZ composite is reduced to 330.98 ± 47.34 kJ/mol. With increasing sintering temperature, the dielectric constant (Εr) and the quality factor (Q×f) value increases firstly and then decreases, and the temperature coefficient of resonant frequency (τf) value slightly decreases. Typically, the BaTi4O9-BBZ composite sintered at 925 °C for 2 h displays excellent microwave dielectric properties of Εr= 26.4, Q×f = 27300 GHz and τf= + 0.3 ppm/°C. In addition, the good chemical compatibility of this material with Ag electrode makes it as a potential candidate for LTCC technology. © 2017 Elsevier Ltd and Techna Group S.r.l.
DOI10.1016/j.ceramint.2017.06.178
EI入藏号20172903956779
EI主题词Barium compounds
EI分类号641.1 Thermodynamics - 804.2 Inorganic Compounds - 812.1 Ceramics - 812.3 Glass - 931.2 Physical Properties of Gases, Liquids and Solids
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被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sic.ac.cn/handle/331005/25733
专题中国科学院上海硅酸盐研究所
作者单位1.Key Laboratory of Inorganic Functional Material and Device, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China;
3.Department of materials, Chongqing University of Technology, Chongqing; 400050, China
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Ren, Haishen,Xie, Tianyi,Dang, Mingzhao,et al. Sintering mechanism and microwave dielectric properties of BaTi4O9-BBZ composite for LTCC technology[J]. Ceramics International,2017,43(15):12863-12869.
APA Ren, Haishen,Xie, Tianyi,Dang, Mingzhao,Jiang, Shaohu,Lin, Huixing,&Luo, Lan.(2017).Sintering mechanism and microwave dielectric properties of BaTi4O9-BBZ composite for LTCC technology.Ceramics International,43(15),12863-12869.
MLA Ren, Haishen,et al."Sintering mechanism and microwave dielectric properties of BaTi4O9-BBZ composite for LTCC technology".Ceramics International 43.15(2017):12863-12869.
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