Abstract
Ceramic materials have great potentials for capacitor application. However, low breakdown strength of the materials remains a key challenge for development of high-performance capacitors. In this study, yttria stabilized zirconia (YSZ) were fabricated and tested for breakdown strength. YSZ samples with 3, 8, and 10 mol% yttria were carefully processed to control grain size and porosity level. Experimental results revealed that breakdown strength as high as 2 MV/cm could be achieved. The breakdown strength was not significantly affected by porosity level, but it was by yttria concentration. Relationship among yttria concentration, residual porosity and breakdown strength is discussed in this study.
Recommended Citation
O. Jongprateep et al., "Effects of yttria concentration and microstructure on electric breakdown of yttria stabilized zirconia," Journal of Metals, Materials and Minerals, vol. 18, no. 1, pp. 9 - 14, Apr 2017.
Department(s)
Materials Science and Engineering
Keywords and Phrases
yttria Stabilized Zirconia; Capacitors; Dielectric Properties; Breakdown Strength; Microstructure
International Standard Serial Number (ISSN)
0857-6149, 2630-0508
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Publication Date
2017-04-23
Comments
Acknowledgement: This work was supported by NSF I/UCRC Center for Dielectric Studies.