期刊
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
卷 38, 期 5, 页码 2312-2317出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2018.01.003
关键词
Glass-ceramic; Dielectric materials; Energy storage; Breakdown strength
资金
- Ministry of Sciences and Technology of China [2015CB654601]
Barium sodium niobate (BNN) glass ceramics were successfully fabricated with controllable crystallization by technology for heating processing and the effects of crystallization temperatures on phase evolution, micro-structure, dielectric properties and breakdown strength were investigated systematically. In addition, the empirical power-law dependence of breakdown strength on thickness (E-b alpha d(-n)) was confirmed in BNN glass ceramic system with an exponent n of 0.21. Based on the results, the BNN glass ceramic crystallized at 800 degrees C presents a remarkable breakdown strength (BDS) of 2322 kV/cm with the tested thickness of 30 mu m, and the highest energy density of 16.6 J/cm(3) was achieved.
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