Structure-property relationships in the lead-free piezoceramic system K0.5Bi0.5TiO3 - BiMg0.5Ti0.5O3
文献类型：期刊论文
| 作者 | Zeb, A; Hall, DA; Aslam, Z; Forrester, J; Li, JF; Li, YZ; Tang, CC; Wang, G; Zhu, FY; Milne, SJ |
| 刊名 | ACTA MATERIALIA
 |
| 出版日期 | 2019 |
| 卷号 | 168期号:-页码:100—108 |
| 关键词 | PIEZOELECTRIC PROPERTIES ELECTRICAL-PROPERTIES TEMPERATURE PHASE DEPOLARIZATION BEHAVIOR FIELD STRAIN |
| ISSN号 | 1359-6454 |
| DOI | 10.1016/j.actamat.2019.02.011 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Distinctive structure-property relationships are revealed in the relaxor ferroelectric ceramic solid solution, (1-x)K0.5Bi0.5TiO3 - xBiMg(0.5)Ti(0.5)O(3): 0.02 < x < 0.08. The constructed phase diagram and results of in-situ synchrotron X-ray diffraction provide explanations for temperature and electric field dependent anomalies in dielectric, ferroelectric and electromechanical properties. At room temperature a mixed phase tetragonal and pseudocubic phase field occurs for compositions 0 >= x <= 0.07. As temperature rises to >= 150 degrees C, the ferroelectric tetragonal relaxor phase changes to a pseudocubic ergodic relaxor phase; this change in length scale of polar order is responsible for an inflection in relative permittivity - temperature plots. The transition is reversed by a sufficient electric field, thereby explaining the constricted form of polarisation-electric field loops measured at >150 degrees C. It is also responsible for a change in slope of the strain-electric field (S-E) plots which are relatively linear in the ferroelectric regime i.e. at temperatures up to 150 degrees C, giving unipolar strains of 0.11% at 20 degrees C and 0.14% at 150 degrees C (50 kV/cm field). The additional contribution from the effect of the field-induced pseudocubic to tetragonal transition, generates strains of similar to 0.2% at 185 degrees C. Unusual for a piezoelectric solid solution, the maximum strains and charge coefficients (d(33) = 150 pC/N, 20 degrees C) do not coincide with a morphotropic or polymorphic phase boundary. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31833]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Univ Leeds, Sch Chem & Proc Engn, Leeds LS2 9JT, W Yorkshire, England; 2.Islamia Coll, Dept Phys, Peshawar, KP, Pakistan; 3.Univ Manchester, Sch Mat, Manchester M13 9PL, Lancs, England; 4.Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China; 5.Diamond Light Source Ltd, Harwell Sci & Innovat Campus, Didcot OX11 0DE, Oxon, England; 6.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zeb, A,Hall, DA,Aslam, Z,et al. Structure-property relationships in the lead-free piezoceramic system K0.5Bi0.5TiO3 - BiMg0.5Ti0.5O3[J]. ACTA MATERIALIA,2019,168(-):100—108. |
| APA | Zeb, A.,Hall, DA.,Aslam, Z.,Forrester, J.,Li, JF.,...&Milne, SJ.(2019).Structure-property relationships in the lead-free piezoceramic system K0.5Bi0.5TiO3 - BiMg0.5Ti0.5O3.ACTA MATERIALIA,168(-),100—108. |
| MLA | Zeb, A,et al."Structure-property relationships in the lead-free piezoceramic system K0.5Bi0.5TiO3 - BiMg0.5Ti0.5O3".ACTA MATERIALIA 168.-(2019):100—108. |
入库方式： OAI收割
来源：上海应用物理研究所
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