Internal Friction in the Ferroelectric – Ferromagnetic Composites

Archives of Metallurgy and Materials

R. Zachariasz¹  J.A. Bartkowska¹  P. Niemiec¹  D. Bochenek¹ 

[1] UNIVERSITY OF SILESIA, DEPARTMENT OF MATERIALS SCIENCE, 2, SNIEZNA ST., SOSNOWIEC, 41-200, POLAND

关键词: Keywords: internal friction;    relaxation time;    ferroelectric domain wall;    Wang’s model;    composites;   

DOI  :  10.2478/amm-2013-0168

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

In the work, temperature Q-1(T) and amplitude Q-1(") dependences of internal friction for ferroelectric - ferromagnetic composites on the base of the PZT and ferrite were determined. The temperature dependences of internal friction Q-1 reveal the peak in the range of high temperatures. We have investigated the peak associated with the viscous-elastic mobility of ferroelectric domain walls. The internal friction due to the viscous-elastic mobility of ferroelectric domain walls was calculated and compared with the experimental data in the reference to the Wang’s theory. Based on internal friction measurements and theoretical considerations, the peak was described. Additionally the amplitude (isothermal) Q-1(") dependences for the composites were made. This allowed for the interpretation of the maximum observed on the temperature dependences of the internal friction Q-1(T).

【 授权许可】

Unknown