等静压对丝网印刷Ba 0.5 Sr 0.5 tio3厚膜介电性能的影响

IF 18.6 1区材料科学 Q1 MATERIALS SCIENCE, CERAMICS Journal of Advanced Ceramics Pub Date : 2013-03-31 DOI:10.1155/2013/852867

Siwei Wang, Lingling Zhang, J. Zhai, F. Chen

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引用次数: 2

摘要

采用丝网印刷方法在Al2O3衬底上制备了B2O3-Li2O玻璃助烧结剂Ba0.5Sr0.5TiO3厚膜。烧结前对薄膜施加200 MPa等静压。在950℃下烧结后，薄膜的孔隙率较低，显微组织致密。介电常数为238，介电损耗为0.0028。等静压膜的可调性为61.7%，比无压膜提高27.8%。结果表明，等静压是制备结构致密、介电损耗低、可调性高的介质厚膜的有效方法。

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The Effect of Isostatic Pressing on the Dielectric Properties of Screen Printed Ba 0.5 Sr 0.5 TiO 3 Thick Films

Ba0.5Sr0.5TiO3 thick films with B2O3–Li2O glass sintering aid were prepared by the screen printing method on Al2O3 substrates. A 200 MPa isostatic pressure was applied to the films before sintering. After being sintered at 950 °C, lower porosity and denser microstructure was obtained compared with the films without isostatic pressing. The dielectric constant and dielectric loss were 238 and 0.0028, respectively. A tunability of 61.7% was obtained for the isostatic pressed films, a 27.8% enhancement compared to unpressurized films. These results suggest that isostatic pressing is an effective way to prepare dielectric thick films with dense microstructure, low dielectric loss, and high tunability.

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来源期刊

Journal of Advanced Ceramics MATERIALS SCIENCE, CERAMICS-

CiteScore

21.00

自引率

10.70%

发文量

290

审稿时长

14 days

期刊介绍： Journal of Advanced Ceramics is a single-blind peer-reviewed, open access international journal published on behalf of the State Key Laboratory of New Ceramics and Fine Processing (Tsinghua University, China) and the Advanced Ceramics Division of the Chinese Ceramic Society. Journal of Advanced Ceramics provides a forum for publishing original research papers, rapid communications, and commissioned reviews relating to advanced ceramic materials in the forms of particulates, dense or porous bodies, thin/thick films or coatings and laminated, graded and composite structures.