Nanocrystalline iron-cobalt alloys supported on a silica matrix prepared by the sol-gel method

被引:35
作者
Ennas, G
Casula, MF
Falqui, A
Gatteschi, D
Marongiu, G
Piccaluga, G
Sangregorio, C
Pinna, G
机构
[1] Univ Cagliari, Dipartimento Sci Chim, I-09042 Cagliari, Italy
[2] Cittadella Univ Monserrato, Dipartimento Fis, I-09100 Cagliari, Italy
[3] Univ Florence, Dipartimento Chim, I-50144 Florence, Italy
关键词
D O I
10.1016/S0022-3093(01)00639-1
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
CoxFe1-x nanocrystals in a silica matrix were prepared by the sol-gel method. The influence of metal precursors was investigated by X-ray diffraction (XRD) and transmission electron microscopy (TEM) measurements. The influence of gel aging on porosity was determined with adsorption-desorption isotherms on N-2 at 77 K. Magnetic measurements were carried out on the composite samples. The magnetic properties are discussed. (C) 2001 Elsevier Science B.V. All rights reserved.
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页码:1 / 9
页数:9
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