Structural transformations taking place in the surface layers of very fine BaFe12O19 powder particles

Autor:	M. N. Shipko, V. S. Tikhonov, L. M. Letyuk
Rok vydání:	1984
Předmět:	Surface (mathematics) Materials science Metals and Alloys Mineralogy Crystal structure Condensed Matter Physics Mechanics of Materials Ferrite (iron) Metallic materials Materials Chemistry Ceramics and Composites Comminution Crystallite Composite material Mechanical energy
Zdroj:	Soviet Powder Metallurgy and Metal Ceramics. 23:466-470
ISSN:	1573-9066 0038-5735
DOI:	10.1007/bf00794670
Popis:	During the comminution of powders of the ferrite BaFe12O19 in an attritor mechanical energy is expended in the disintegration of particles, formation of defects, and plastic deformation of the crystal lattice. The comminution of powders in a vibratory mill is accompanied by the formation of well-developed surface layers on particles, which are characterized by a high degree of defectiveness and crystal lattice disorder. The hypothesis is advanced that during prolonged comminution of powders in a vibratory mill the surface layers of particles can undergo structural transformations, which promote the formation of stable oxygen-containing phases at crystallite boundaries.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0eeffd7d65c4bfb9a4077e5e491f9373 https://doi.org/10.1007/bf00794670 Zobrazit plný text záznamu Full text from SpringerLink