The Effect of (Li,Ce) Doping in Aurivillius Phase Material Na_{0. 5}Bi_4.5Ti₄O₁₅

Abstract:

Na0.5Bi4.5Ti4O15-based materials with A-site vacancy were synthesized using conventional solid state processing. The (Li,Ce) modification of Na0.5Bi4.5Ti4O15-based materials resulted in the obvious improvement of the piezoelectric activity and dielectric permittivity. The dielectric and piezoelectric properties of Na0.5Bi4.5Ti4O15-based ceramics exhibiting a very stable temperature behavior, together with its high TC ~641oC, excellent piezoelectric coefficient ~28pC/N and very low temperature coefficient of resonant frequency, making the (Li,Ce) modified Na0.5Bi4.5Ti4O15-based ceramics a promising candidate for high temperature applications.

• Periodical: Advanced Materials Research (Volumes 146-147)
• Pages: 89-92
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.146-147.89
• Online since: October 2010
• Authors: Zhi Gang Gai, Yuan Yuan Feng, Jin Feng Wang, Hong Wu
• Keywords: Bismuth Layer Structured Ferroelectrics, BLSFs, High Temperature Application, Lead-Free, Piezoelectric Properties

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