掺杂镁的新型锆酸钇钡化合物的结构

IF 0.9 4区 物理与天体物理 Q4 PHYSICS, CONDENSED MATTER
Shahzad Hossain, Md. Masud Parvez, Abdalla M. Abdalla, Mohammed T. Chowdhury, Shafinaz A. Lopa, Iftakhar B. Elius, Cristian D. Savaniu, Juliana H. Zaini, John T. S. Irvine, Abul K. Azad
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引用次数: 0

摘要

摘要 采用标准固态反应法制备了掺镁锆酸钇钡,YBa2Zr3 - xMgxO9.5 - δ(0 ≤ x ≤ 0.室温 X 射线衍射 (XRD)、扫描电子显微镜 (SEM)、能量色散 X 射线光谱 (EDX)、透射电子显微镜 (TEM)、粒度分析 (PSA) 和热重分析 (TGA) 对材料的相纯度、结构和热特性进行了研究。用 winXpow 软件对材料的 XRD 数据进行了索引,并用 FullProf 套装程序对其进行了里特维尔德细化,发现其为立方透辉石和少量立方萤石的双相。使用不同的模型从 XRD 线展宽数据中获得了尺寸、应力、应变、晶体能量等微观结构参数,并发现立方透辉石相在固溶体中占很大比例,其晶体尺寸为 ~212 nm(±13 nm),大于其对应的萤石相的晶体尺寸 ~132 nm(±1 nm)。TEM 分析证实了这两种相的存在。氮气环境下的 TGA 扫描显示其稳定性可达 1000°C。颗粒大小从 9 微米到 13 微米不等。扫描电子显微镜图像显示,在 1450°C 下烧结的材料是多孔的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Structure of Magnesium Doped Yttrium Barium Zirconate as a Novel Compound

Structure of Magnesium Doped Yttrium Barium Zirconate as a Novel Compound

Structure of Magnesium Doped Yttrium Barium Zirconate as a Novel Compound

The magnesium doped yttrium barium zirconate, YBa2Zr3 – xMgxO9.5 – δ (0 ≤ x ≤ 0.5) has been prepared by the standard solid-state reaction method and the room temperature X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), particle size analysis (PSA) and thermogravimetric analysis (TGA) have been investigated for phase purity, structural and thermal characterizations. The XRD data of the materials have been indexed with the winXpow software and Rietveld refinements have been done by FullProf suite programarend is found to be double phase of cubic perovskite and a small amount of cubic fluorite. The microstructural parameters such as size, stress, strain, crystal energy are obtained from XRD line broadening data using different models and found that the cubic perovskite phase contributed a large part to the solid solution shows a larger crystallite size of ~212 nm (±13 nm) than its fluorite counterpart which is found to be ~132 nm (±1 nm). The TEM analyses confirm the presence of both phases. The TGA scans in nitrogen environment exhibits stability up to 1000°C. The sizes of the particles from 9 to 13 μm. Scanning electron microscope images reveals that the materials sintered at 1450°C are porous.

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来源期刊
Physics of the Solid State
Physics of the Solid State 物理-物理:凝聚态物理
CiteScore
1.70
自引率
0.00%
发文量
60
审稿时长
2-4 weeks
期刊介绍: Presents the latest results from Russia’s leading researchers in condensed matter physics at the Russian Academy of Sciences and other prestigious institutions. Covers all areas of solid state physics including solid state optics, solid state acoustics, electronic and vibrational spectra, phase transitions, ferroelectricity, magnetism, and superconductivity. Also presents review papers on the most important problems in solid state physics.
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