广东化工
廣東化工
엄동화공
GUANGDONG CHEMICAL INDUSTRY
2013年
8期
3-4
,共2页
王坦%尹奇异*%朱开平%汤晨%鲍美玲
王坦%尹奇異*%硃開平%湯晨%鮑美玲
왕탄%윤기이*%주개평%탕신%포미령
铌酸钾钠%掺杂%压电性能%介电性能
鈮痠鉀鈉%摻雜%壓電性能%介電性能
니산갑납%참잡%압전성능%개전성능
K0.5Na0.5NbO3%modifying%piezoelectric properties%dielectric properties
采用传统陶瓷制备技术制备了新型的 K0.5Na0.5NbO3+0.2% molFe2O3+x% molNd2O3压电陶瓷,研究了该体系陶瓷的压电性能及介电性能.研究结果表明,在烧结温度为1120℃、4 h 时,该体系陶瓷均具有相对较好的电学性能,并在 x 为0.2时性能最佳,其压电常数 d33为125 pC/N,机电耦合系数 Kp 为37%,机械品质因素 Qm 为155,介电常数εr 为561,介质损耗 tanδ为0.08.
採用傳統陶瓷製備技術製備瞭新型的 K0.5Na0.5NbO3+0.2% molFe2O3+x% molNd2O3壓電陶瓷,研究瞭該體繫陶瓷的壓電性能及介電性能.研究結果錶明,在燒結溫度為1120℃、4 h 時,該體繫陶瓷均具有相對較好的電學性能,併在 x 為0.2時性能最佳,其壓電常數 d33為125 pC/N,機電耦閤繫數 Kp 為37%,機械品質因素 Qm 為155,介電常數εr 為561,介質損耗 tanδ為0.08.
채용전통도자제비기술제비료신형적 K0.5Na0.5NbO3+0.2% molFe2O3+x% molNd2O3압전도자,연구료해체계도자적압전성능급개전성능.연구결과표명,재소결온도위1120℃、4 h 시,해체계도자균구유상대교호적전학성능,병재 x 위0.2시성능최가,기압전상수 d33위125 pC/N,궤전우합계수 Kp 위37%,궤계품질인소 Qm 위155,개전상수εr 위561,개질손모 tanδ위0.08.
A new-type K0.5Na0.5NbO3+0.2 % molFe2O3+x%molNd2O3 piezoelectric ceramic were prepared by traditional ceramic sintering technique, and their piezoelectric and dielectric properties were also detailedly studied. These results indicate that this new type ceramics sintered at 1165 ℃ for 4 hours have relatively good electrical properties. Particllarly, the ceramic with x=0.04 exhibits optimum electrical properties at room temperature (d33=125 pC/N, kp=37 %, Qm=155,εr=561, tanδ=0.08), which suggests that the ceramic is a promising candidate material for lead-free piezoelectric ceramics.
