流延工艺对生瓷带结构和微波特性的影响 |
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引用本文: | 徐自强,孙洋涛,李元勋,吴孟强,杨邦朝. 流延工艺对生瓷带结构和微波特性的影响[J]. 电子科技大学学报(自然科学版), 2018, 47(1): 147-152. DOI: 10.3969/j.issn.1001-0548.2018.01.022 |
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作者姓名: | 徐自强 孙洋涛 李元勋 吴孟强 杨邦朝 |
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作者单位: | 1.电子科技大学能源科学与工程学院 成都 611731 |
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基金项目: | 国家自然科学基金61301052中央高校基本科研业务费ZYGX2016J145四川省科技计划重点研发项目2017GZ0143四川省科技计划重点研发项目2017GZ0106四川省科技计划重点研发项目2017GZ0200 |
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摘 要: | 基于低温共烧陶瓷技术流延工艺的特点,通过研究粘合剂、分散剂和增塑剂等在浆料体系中的力学效应对生瓷带中陶瓷成分颗粒的几何排列及所产生的孔隙排斥等力学特性的影响,以及优化热处理温度对生瓷带的质量损失、延展率和拉伸强度的关系,深入分析了流延过程的关键技术及工艺参数对生瓷带结构和微波特性的影响。研究后提出:通过调整流延浆化浆料中粘合剂、分散剂和增塑剂配比,采用梯度缓变的热处理烘干温度曲线和消除生瓷带累积应力等方法,可明显改善流延工艺过程,最终获得质量稳定、可靠性高和功能满足于微波应用要求的生瓷带。
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关 键 词: | 流延 低温共烧陶瓷 微波性能 结构 粘度 |
收稿时间: | 2016-12-01 |
Effect of Tape Casting Procedure on Structure and Microwave Characteristics of Tapes |
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Affiliation: | 1.School of Energy Science and Engineering, University of Electronic Science and Technology of China Chengdu 6117312.State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China Chengdu 610054 |
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Abstract: | In this paper, the influence on the mechanical properties of green tape from binder, dispersant and plasticizer in the slurry system is studied based on the characteristics of tape casting process in the low temperature co-fired ceramic (LTCC) technology. Also, the relationships between the heat-treatment temperature and the mass loss, as well as the elongation and tensile strength of the tape are analyzed. Moreover, the effects on structure and microwave characteristics of the green tape generated from the key procedures and technical parameters of tape casting process are discussed. The results show that the tape casting process can be significantly improved and the green tapes with stable quality and high reliability are obtained by adjusting the ratio of binder, dispersant and plasticizer, and using the gradient temperature profile and the method of eliminating cumulative stress, respectively. Finally, by the verification of the experimental microwave capacitors, the green tapes with high stability, performance and reliability are obtained, which can be suitable for the requirements in microwave applications. |
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