Effect of microstructure on dielectric and fatigue strengths of BaTiO3
Resource
Journal of the European Ceramic Society, 30(12), 2569-2576
Journal
Journal of the European Ceramic Society
Pages
2569-2576
Date Issued
2010
Date
2010
Author(s)
Abstract
In the present study, bulk barium titanate ceramic specimens with bimodal microstructures are prepared and their dielectric and fatigue strengths under an alternating electric field are investigated. It is found that both the dielectric and fatigue strengths decrease with increasing amount of coarse grains. The scatter of the fatigue strength is characterized with the Weibull statistics. The extent of scatter of the fatigue strength data correlates strongly with the size distribution of the coarse grains. Such correlation is resulted from the presence of intrinsic defects within the microstructure. Direct microstructure evidences are provided. © 2010 Elsevier Ltd.
Type
journal article
File(s)![Thumbnail Image]()
Loading...
Name
299.pdf
Size
23.45 KB
Format
Adobe PDF
Checksum
(MD5):91a33e3bba60ce0b88e310f8f85831b5