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材料研究学报    DOI: 10.11901/1005.3093.2024.406
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锆酸盐改性K0.5Na0.5(Nb0.95Ta0.05)O3陶瓷的结构与性能研究
尹奇异,张梦军,斯凡,林飞
合肥大学
Study on the structure and properties of zirconate-modified K0.5Na0.5(Nb0.95Ta0.05)O3 ceramics
引用本文:

尹奇异 张梦军 斯凡 林飞. 锆酸盐改性K0.5Na0.5(Nb0.95Ta0.05)O3陶瓷的结构与性能研究[J]. 材料研究学报, 10.11901/1005.3093.2024.406.

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摘要: 摘要:本实验采用传统固相烧结法制备了新的陶瓷(1-x)K0.5Na0.5(Nb0.95Ta0.05)O3-x(Bi0.5Yb0.5)0.95Li0.05 ZrO3,通过XRD、SEM、EDS等测试结果的综合分析,可以确定BYLZ完全进入到KNN晶格中,形成了单一的钙钛矿结构,且在x = 0.0时陶瓷为O相,0.0 < x ≤ 0.02时,陶瓷为O-T相,0.03 < x ≤ 0.04时陶瓷为R-O-T相,0.04 < x ≤ 0.05时,陶瓷为T相。性能测试显示,在x = 0.04的多晶型相界区,陶瓷获得最佳性能 ( d33 = 305 pC/N,kp = 38.17 %,εr = 1710,tanδ = 2.5%,4.63 μC/cm2,EC= 20.67 kV/cm,and TC = 340 ℃)。
关键词 关键词:锆酸盐多相共存无铅压电陶瓷铁电体    
Abstract:In this experiment, a new ceramic (1-x)K0.5Na0.5(Nb0.95Ta0.05)O3-x(Bi0.5Yb0.5)0.95Li0.05ZrO3 was prepared by the traditional solid-phase sintering method, and through the comprehensive analysis of XRD, SEM, EDS and other test results, it can be determined that BYLZ completely enters the KNN lattice and forms a single perovskite structure, and the ceramic is O phase at x = 0.0, at 0.0 < x ≤ 0.02, the ceramic is O-T phase, and at 0.03 < x ≤ 0.04, the ceramic is R-O-T phase and 0.04 < x ≤ 0.05, the ceramic is the T phase. Performance tests show that ceramics achieve the best performance in the polymorphic phase boundary region of x = 0.04 (d33 = 305 pC/N, kp = 38.17 %, εr = 1710, tanδ = 2.5 %, Pr = 34.63 μC/cm2, EC= 20.67 kV/cm, and TC = 340 °C).
Key wordsKEYWORDS Zirconate    Multiphase coexistence    Lead-free piezoelectric ceramics    Ferroelectric
收稿日期: 2024-10-03     
基金资助:安徽省教育厅自然科学基金项目;2022年新时代教育素质工程
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[6] 王新荣;张孝文;桂治轮;李龙土. Pb(Sc_(1/2)Ta_(1/2))O_3铁电体的有序结构和介电性质[J]. 材料研究学报, 1996, 10(1): 57-62.
[7] 王新荣;桂治轮;李龙土;张孝文. 复合钙钛矿Pb(Fe_(1/2)Nb_(1/2))O_3的弛豫特性[J]. 材料研究学报, 1994, 8(6): 539-542.
[8] 王业宁;黄以能;沈惠敏. 与铁电、弛豫铁电相变及畴界有关的内耗和介电损耗[J]. 材料研究学报, 1994, 8(1): 2-10.
[9] 黄镳;王晓莉;姚熹. 具有过量PbO的Ph(Zn_(1/3)Nb_(2/3))O_3-PbTiO_3系陶瓷的相结构和介电性能[J]. 材料研究学报, 1994, 8(1): 51-55.
[10] 陈大任;浦光华. Pb(Fe_(1/2)Nb_(1/2))O_3弛豫型铁电陶瓷的介电弛豫特性[J]. 材料研究学报, 1992, 6(4): 326-331.