Structure and Mössbauer spectroscopy studies of mechanically activated (BiFeO3)1−x-(BaTiO3)x solid solutions

Nukleonika

Antolak-Dudka Anna¹  Oleszak Dariusz¹  Malesa Bożena²  Pikula Tomasz³ 

[1] Faculty of Materials Science and Engineering, Warsaw University of Technology, 141 Wołoska Str., 02-507 Warsaw, Poland;Institute of Electronics and Information Technology, Lublin University of Technology, 38A Nadbystrzycka Str., 20-618 Lublin, Poland and Department and Division of Nuclear Medicine, Lublin University of Medicine, 8 Jaczewskiego Str., 20-954 Lublin, Poland;Institute of Electronics and Information Technology, Lublin University of Technology, 38A Nadbystrzycka Str., 20-618 Lublin, Poland, Tel.: [phone], Fax: [phone];

关键词: ceramic solid solutions;    hyperfine interactions;    mechanical activation;    mössbauer spectroscopy;   

DOI  :  10.1515/nuka-2015-0022

来源: DOAJ

【 摘 要 】

(BiFeO3)1-x-(BaTiO3)x solid solutions with x = 0.1–0.4 and 0.7 were investigated. The ceramics were prepared by mechanical activation technology and subsequent heat treatment. As was proved by X-ray diffraction, increase of BaTiO3 concentration causes a change in the crystalline structure from the rhombohedral structure characteristic of BiFeO3 to a cubic one. 57Fe Mössbauer spectroscopy allowed observation of a gradual transformation from an ordered spin structure of Fe3+ ions to the paramagnetic state with an increase of x.

【 授权许可】

Unknown