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CuO掺杂(K_(0.48)Na_(0.52))_(0.96)Li_(0.04)Nb_(0.87)Sb_(0.08)Ta_(0.05)O_(3)压电陶瓷的性能研究
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作者 周飞 曹莎莎 《武汉船舶职业技术学院学报》 2023年第5期91-95,共5页
通过传统的固相烧结技术制备了(K_(0.48)Na_(0.52))_(0.96)Li_(0.04)Nb_(0.87)Sb_(0.08)Ta_(0.05)O_(3)-xCuO (x=0,0.005,0.01,0.015,0.020,0.025,0.030)压电陶瓷,探讨CuO掺杂量对压电陶瓷性能的影响。结果表明,当x=0.005时,陶瓷为斜方... 通过传统的固相烧结技术制备了(K_(0.48)Na_(0.52))_(0.96)Li_(0.04)Nb_(0.87)Sb_(0.08)Ta_(0.05)O_(3)-xCuO (x=0,0.005,0.01,0.015,0.020,0.025,0.030)压电陶瓷,探讨CuO掺杂量对压电陶瓷性能的影响。结果表明,当x=0.005时,陶瓷为斜方相与四方相两相共存,但在更高的掺杂量下则转变为斜方相。居里温度T_(C)和斜方相-四方相转变温度T_(O-T)随着CuO掺入量的增加而逐渐升高。陶瓷的铁电压电性能受CuO掺杂量的影响显著。当x=0.015时,陶瓷的压电常数和平面机电耦合系数达到最大值,分别为d_(33)=228 pC/N、k_(p)=35.86%,机械品质因数Q_(m)=146。 展开更多
关键词 压电陶瓷 (k_(0.48)na_(0.52))_(0.96)li_(0.04)nb_(0.87)sb_(0.08)ta_(0.05)o_(3) 电性能
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