凝胶燃烧法制备的掺镨离子对9/65/35 PLZT陶瓷性能的影响研究

Investigation of Praseodymium Ions Dopant on 9/65/35 PLZT Ceramics' Behaviors, Prepared by the Gel-Combustion Route.

作者信息

Płońska Małgorzata, Plewa Julian

机构信息

Faculty of Science and Technology, Institute of Materials Engineering, University of Silesia in Katowice, 75 Pułku Piechoty Street 1a, 41-500 Chorzów, Poland.

出版信息

Materials (Basel). 2023 Dec 4;16(23):7498. doi: 10.3390/ma16237498.

DOI:10.3390/ma16237498

PMID:38068242

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10707430/

Abstract

In this work, were synthesized (PbLa)(ZrTi)O ceramic materials with different concentrations of praseodymium (0, 0.1, 0.3, 0.5, 1 wt.%) via gel-combustion route and sintered by the hot uniaxial pressing method. Measurements were conducted on the obtained ceramics using X-ray powder diffraction (XRD), scanning electron microscope (SEM), EDS analysis, and examination of dielectric and ferroelectric optical properties. Results give us a detailed account of the influences of the praseodymium ions on the structural, microstructural, and dielectric properties. 3D fluorescence maps and excitation and emission spectra measurements show how a small admixture changes the ferroelectric relaxor behavior to an optically active ferroelectric luminophore.

摘要

在本工作中，通过凝胶燃烧法合成了具有不同镨浓度（0、0.1、0.3、0.5、1 wt.%）的（PbLa）（ZrTi）O陶瓷材料，并采用热压单轴压制方法进行烧结。使用X射线粉末衍射（XRD）、扫描电子显微镜（SEM）、能谱分析（EDS）以及对介电和铁电光学性能的检测，对所制备的陶瓷进行了测量。结果详细说明了镨离子对结构、微观结构和介电性能的影响。三维荧光图谱以及激发和发射光谱测量表明，少量添加剂如何将铁电弛豫体行为转变为具有光学活性的铁电发光体。