Comparison of surface and bulk room temperature domain structure of barium titanate ceramics using x-ray diffraction

Autor:	V. K. Seth, G. J. Gatins, W. A. Schulze
Rok vydání:	1988
Předmět:	Diffraction Materials science Poling Condensed Matter Physics Electronic Optical and Magnetic Materials Stress field chemistry.chemical_compound chemistry visual_art Electric field Barium titanate X-ray crystallography visual_art.visual_art_medium Ceramic Composite material Thin film
Zdroj:	Ferroelectrics. 87:243-253
ISSN:	1563-5112 0015-0193
DOI:	10.1080/00150198808201387
Popis:	The surface of a material may be considered as different from the bulk because of the presence of the discontinuity of the existing phase(s). This ‘surface phase’ may have different characteristics than those of the bulk. This study characterizes the differences between the surface and the bulk domain structure of BaTiO3 ceramics at room temperature using x-ray diffraction before and after the ceramics were subjected to external mechanical stress field on the surface and/or external electrical stress field in the bulk. Two x-rays of different wavelengths, one from Cu-Kα source (λ = 1.542 A) and another from Mo-Kα (λ = 0.711 A) source were utilized. The use of this technique as a method for quantifying the degree of poling is suggested. A strong influence of stress conditions on the final properties of the thin films and the interfaces of ferroic materials is predicted.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ae8dbf4403d7edbce0706633fb4f9927 https://doi.org/10.1080/00150198808201387 Zobrazit plný text záznamu