Structural characterization of Nano-crystalline BaTiO3 Powder Prepared using Hydrothermal Method

被引：6

作者：

Al-Sarraj, Ziyad S. A. ^{[1
]}

Mukhlis, M. Ismail ^{[2
]}

Ali, Sabah M. ^{[2
]}

Cao, Wan Q. ^{[3
]}

机构：

[1] Minist Sci & Technol, POB 765, Baghdad, Iraq

[2] Univ Technol Baghdad, Sch Appl Sci, Baghdad, Iraq

[3] Hubei Univ, Hubei Piezoelect Mat & Devices Key Lab, Wuhan 430062, Peoples R China

来源：

ADVANCES IN INNOVATIVE MATERIALS AND APPLICATIONS | 2011年 / 324卷

关键词：

Hydrothermal method; Barium titanate; Cubic-to-tetragonal transition; Strains; PHASE-TRANSITION; PARTICLE-SIZE; EVOLUTION; BEHAVIOR;

D O I：

10.4028/www.scientific.net/AMR.324.205

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

BaTiO3 powders were prepared hydrothermally using TiCl4, Ba(OH)(2)center dot 8H(2)O and NH4OH as starting materials at 150 degrees C for 2h. The structure of the prepared nanocystalline BT powders were a metastable cubic perovskite according to XRD and HRTEM analysis, while FT Raman spectra showed that BT powders have a tetragonal structure. Hydroxyl and carbonate groups were observed in all prepared powders that showed in FTIR spectroscopy as vibrational bands. The tetragonal phase of BT powder was identified clearly by slow scan XRD at 20 between 44.6 to 46 degrees. The crystallite size of BT powders have increased with the increase of annealing temperature from 19 nm at room temperature to 70 nm at 1000 degrees C.

引用

页码：205 / +

页数：2

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