Grain Size Dependent Magnetic Properties of Nanocrystalline Sm [BE]Co [BD][BJ]/Cu

Autor:	C. Djega-Mariadassou, J. Zhang, V. Lalanne, A. Percheron-Guégan, Lotfi Bessais
Rok vydání:	2001
Předmět:	Diffraction Materials science Transmission electron microscopy Analytical chemistry Particle Electron microprobe Coercivity Microstructure Nanocrystalline material Grain size
Zdroj:	MRS Proceedings. 703
ISSN:	1946-4274 0272-9172
DOI:	10.1557/proc-703-v3.16
Popis:	The evolution of both micro structural and magnetic properties of the Sm[BE]Co[BD][BJ] Cu powder, is studied as a function of soft co-milling time. The average grain size in the range 20 - 50 nm was determined by transmission electron microscopy coupled with x-ray diffraction using the Rietveld method. The particle shape and chemical distribution were investigated by elemental mapping, using wavelength dispersive x-ray analysis with electron microprobe analysis. The coercivity evolution shows that an optimum value of 6 kOe is obtained after 5 h co-milling. The microstructure analysis indicates that both materials are well mixed in nanometer scale. This technique appears as a potential route to synthesize nanocrystalline Sm[BE]Co[BD][BJ] isolated by non-magnetic metal Cu.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4a46410200b9f7d1e9ebcc325f1cd286 https://doi.org/10.1557/proc-703-v3.16 Zobrazit plný text záznamu Full text from SpringerLink