Crystallographic X-ray Diffraction Study on Thermal Phase Transformation of Barium Titanate

被引：1

作者：

Hassanien, A. E. ^{[1
]}

Matar, Toka ^{[1
]}

Mabied, Ahmed F. ^{[2
]}

Ramadan, A. A. ^{[1
]}

Hashem, H. M. ^{[1
]}

机构：

[1] Helwan Univ, Fac Sci, Phys Dept, Cairo 11792, Egypt

[2] Natl Res Ctr, Phys Res Inst, Solid State Phys Dept, 33 El Bohouth St, Giza 12622, Egypt

来源：

EGYPTIAN JOURNAL OF CHEMISTRY | 2023年 / 66卷 / 08期

关键词：

Barium titanate; High temperature X-ray diffraction; Phase transition; Rietveld refinement;

D O I：

10.21608/ejchem.2022.160582.6915

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

BaTiO3 exhibits several phases. Due to its exceptional ferroelectric and dielectric characteristics, Barium titanate (BaTiO3) has received a lot of interest. In the current study, X-ray diffraction method was used to investigate the phase transition and structural stability of BaTiO3 in temperature range of 30-700 oC. The behaviour of phase transformation and lattice parameters of the BaTiO3 were established by Rietveld refinement. At 100 oC, transformation to cubic phase starts and remains cubic up to 700 oC. Additionally, tetragonal to cubic transformation was accomplished by a decrease of tetragonality at 125 oC.

引用

页码：67 / 71

页数：5

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