Journal
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
Volume 40, Issue 4, Pages 1779-1783Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2019.12.009
Keywords
Multilayer; Ceramic capacitor; Energy storage; Lead-free; Bismuth ferrite
Categories
Funding
- Engineering and Physical Sciences Research Council [EP/L017563/1, EP/N010493/1]
- Engineering and Physical Sciences Research Council [EP/L017563/1] Funding Source: researchfish
- EPSRC [EP/S019367/1, EP/P02470X/1, EP/P015859/1, EP/L017563/1] Funding Source: UKRI
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Nigh recoverable energy density (10J cm(-3)) multilayers have been fabricated from lead-free 0.61BiFeO(3)-0.33(Ba0.8Sr0.2)TiO3-0.06La(Mg2/3Nb1/3)O-3 ceramics. High breakdown strength > 730 kV cm(-1) was achieved through the optimisation of multilayer processing to produce defect-free dielectric layers 7 pm thick. Excellent temperature, frequency, fatigue stability and fast charge-discharge speed were observed in the multilayer, critical for their potential use in power electronics.
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