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Silver niobate-based lead-free antiferroelectric ceramic material with high energy storage density and temperature stability and preparation method thereof
The invention discloses a silver niobate-based lead-free antiferroelectric ceramic material with high energy storage density and temperature stability and a preparation method thereof. The invention provides an A-site doping method, wherein the chemical general formula of a ceramic component is (RexAg1-3x)NbO3 (x is greater than 0 and less than or equal to 0.06), and Re is a trivalent lanthanide rare earth element (such as La<3+>, Sm<3+>, Eu<3+>, Er<3+>, Yb<3+> and Lu<3+>). The ceramic system shows a more stable antiferroelectric characteristic, so that the releasable energy density of the ceramic system reaches 2.5-5.2 J/cm<3>. More importantly, the system also has good temperature stability, and the fluctuation of the system does not exceed 10% in the range of 20 DEG C to 140 DEG C.
本发明公开了一类高储能密度和温度稳定性的铌酸银基无铅反铁电陶瓷材料及其制备方法。本发明提出了一种A位掺杂的方法，其陶瓷组分的化学通式为(ReAg)NbO(0
Silver niobate-based lead-free antiferroelectric ceramic material with high energy storage density and temperature stability and preparation method thereof
The invention discloses a silver niobate-based lead-free antiferroelectric ceramic material with high energy storage density and temperature stability and a preparation method thereof. The invention provides an A-site doping method, wherein the chemical general formula of a ceramic component is (RexAg1-3x)NbO3 (x is greater than 0 and less than or equal to 0.06), and Re is a trivalent lanthanide rare earth element (such as La<3+>, Sm<3+>, Eu<3+>, Er<3+>, Yb<3+> and Lu<3+>). The ceramic system shows a more stable antiferroelectric characteristic, so that the releasable energy density of the ceramic system reaches 2.5-5.2 J/cm<3>. More importantly, the system also has good temperature stability, and the fluctuation of the system does not exceed 10% in the range of 20 DEG C to 140 DEG C.
本发明公开了一类高储能密度和温度稳定性的铌酸银基无铅反铁电陶瓷材料及其制备方法。本发明提出了一种A位掺杂的方法，其陶瓷组分的化学通式为(ReAg)NbO(0
Silver niobate-based lead-free antiferroelectric ceramic material with high energy storage density and temperature stability and preparation method thereof
一类高储能密度和温度稳定性的铌酸银基无铅反铁电陶瓷材料及其制备方法
LUO NENGNENG (Autor:in) / HAN KAI (Autor:in) / WEI YUEZHOU (Autor:in) / CHEN ZHENPEI (Autor:in) / MA LI (Autor:in) / FENG QIN (Autor:in)
18.08.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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