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OALib Journal期刊
ISSN: 2333-9721
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zr含量对大功率0125pmn0875pzt陶瓷压电性能的影响
, PP. 121-125
Keywords: 0125pmn0875pzt,zr含量,大功率,压电性能
Abstract:
采用二次合成法制备不同zr含量(x=046~052)的0125pb(mg1/3nb2/3)o3-0875pbzrxti1-xo3(0125pmn0875pzt)三元压电陶瓷。采用x线衍射仪(xrd)、阻抗分析仪等对陶瓷进行表征和性能测试，考察了zr含量变化对陶瓷烧结相结构、体积密度、介电和压电性能的影响。结果表明：采用二次合成法，制备了纯钙钛矿相结构的陶瓷；当x=048~050时，0125pmn0875pzt陶瓷处于四方三方准同型相界(mpb)，在x=049时制备的0125pmn0875pzt陶瓷性能最佳，体积密度为784g/cm3，介电损耗低至076%，相对介电常数为2130，压电常数为320pc/n，机电耦合系数达061，机械品质因数为76。
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