Structural Differences of BaTiO3 Ceramics Modified by Ultrasonic and Mechanochemical Methods

被引：1

作者：

Aydin, Zeki ^{[1
]}

Turgut, Selvin ^{[2
]}

Akbas, Hatice Zehra ^{[3
]}

机构：

[1] Mustafa Kemal Univ, Fac Sci & Letters, Dept Chem, Antakya, Turkey

[2] Mustafa Kemal Univ, MARGEM, Antakya, Turkey

[3] Mustafa Kemal Univ, Fac Sci & Letters, Dept Phys, Antakya, Turkey

来源：

POWDER METALLURGY AND METAL CERAMICS | 2018年 / 57卷 / 7-8期

关键词：

BaTiO3; deagglomeration; milling; ultrasonication; grain size; DIELECTRIC-PROPERTIES; BARIUM CARBONATE; PARTICLES; MICROSTRUCTURE; NANOSTRUCTURES; DENSIFICATION; CAPACITORS; BACO3;

D O I：

10.1007/s11106-018-0008-8

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Barium titanate powders were synthesized by the modified solid-state method with ultrasonic (5 min) and mechanochemical (12 h) deagglomeration methods. The structure of the samples was verified using Fourier transform infrared spectroscopy (FT-IR) and X-ray diffractometer (XRD). Scanning electron microscopy (SEM) analysis of the powders showed that using ultrasonic deagglomeration significantly decreased the particle size with perfect homogeneity in the shortest time. The particle size of the powders was calculated as 44.7 nm and 80.4 nm for ultrasonic and mechanochemical deagglomeration, respectively. The sintered pellet by ultrasonic method had no abnormal grain growth, and the grain sizes were between 10 and 30 m. The pellet by mechanochemical method had an abnormal grain growth, and the grain sizes were between 10 and 100 m. The results showed that ultrasonication remarkably improved the structure of the samples in the shortest time.

引用

页码：490 / 497

页数：8

共 31 条

[1]

Akbas H.Z., 2016, DOKUZ EYLFIL U MUHEN, V18, P304

[2] Effects of ultrasonication and conventional mechanical homogenization processes on the structures and dielectric properties of BaTiO3 ceramics [J].