Particle size distribution in FeAg granular alloy

Araújo, José Humberto de; Soares, João Maria; Cabral, F. A. O.; Machado, F. L. A.; Dumelow, Thmas; Xavier Júnior, Milton Moraes; Sasaki, José Marcos

Particle size distribution in FeAg granular alloy

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dc.contributor.author	Araújo, José Humberto de
dc.contributor.author	Soares, João Maria
dc.contributor.author	Cabral, F. A. O.
dc.contributor.author	Machado, F. L. A.
dc.contributor.author	Dumelow, Thmas
dc.contributor.author	Xavier Júnior, Milton Moraes
dc.contributor.author	Sasaki, José Marcos
dc.date.accessioned	2020-06-18T15:40:29Z
dc.date.available	2020-06-18T15:40:29Z
dc.date.issued	2008-11
dc.description.resumo	A combination of Langevin and hyperbolic tangent functions weighted by a log-normal particle size distributions were used to fit the magnetization curves of Fe10Ag90 granular alloys, produced by a sol–gel process under different chemical conditions. The fitting technique allows one to get both the superparamagnetic and the blocked particle size distributions. The average size of the Fe particles obtained from the fit were in good agreement with those obtained by X-ray diffraction. The correlation between the coercive field and the particle distribution was also investigated. Zero-field cooling dc magnetic susceptibility measurements were fitted using a similar technique to that used for fitting the magnetization curves. The saturation magnetization and mean Fe particle size values obtained from the two fittings were in good agreement	pt_BR
dc.identifier.citation	SOARES, J.; ARAUJO, J. de ; CABRAL, F .MACHADO, F.; DUMELOW, T.; XAVIER JUNIOR, M.; SASAKI, J. Particle size distribution in FeAg granular alloy. Journal of Non-Crystalline Solids, v. 354, p. 4883-4886, 2008. Disponível em: https://www.sciencedirect.com/science/article/pii/S0022309308005206?via%3Dihub#! Acesso em: 18 jun 2020. https://doi.org/10.1016/j.jnoncrysol.2008.04.036.	pt_BR
dc.identifier.doi	10.1016/j.jnoncrysol.2008.04.036
dc.identifier.issn	0022-3093
dc.identifier.uri	https://repositorio.ufrn.br/jspui/handle/123456789/29301
dc.language	en	pt_BR
dc.publisher	Journal of Non-Crystalline Solids	pt_BR
dc.rights	Attribution 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by/3.0/br/	*
dc.subject	Magnetic properties	pt_BR
dc.subject	Granular alloy	pt_BR
dc.title	Particle size distribution in FeAg granular alloy	pt_BR
dc.type	article	pt_BR