PREPARATION AND MAGNETIC-PROPERTIES OF FE100-XNIX-SIO2 GRANULAR ALLOYSOLID USING A SOL-GEL METHOD

Authors
WANG JP HAN DH LUO HL GAO NF LIU YY
Citation
Jp. Wang et al., PREPARATION AND MAGNETIC-PROPERTIES OF FE100-XNIX-SIO2 GRANULAR ALLOYSOLID USING A SOL-GEL METHOD, Journal of magnetism and magnetic materials, 135(3), 1994, pp. 120000251-120000256
Citations number
14
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Journal of magnetism and magnetic materials → ACNP
ISSN journal
03048853
Volume
135
Issue
3
Year of publication
1994
Pages
120000251 - 120000256
Database
ISI
SICI code
0304-8853(1994)135:3<120000251:PAMOFG>2.0.ZU;2-C
Abstract
The preparation of Fe100-xNix-SiO2 (x = 0, 20, 60, 80) granular solid using a sol-gel method is investigated by means of X-ray diffraction a nd electron transmission micrography. Pure Fe metal, Fe40Ni60 and Fe20 Ni80 ultrafine alloy particles dispersed in Fe-SiO2, Fe40Ni60-SiO2 and Fe20Ni80-SiO2 granular solid have been fabricated which are confirmed by the result of the XRD and the Mossbauer spectrums. The evolution o f the magnetic properties for the Fe40Ni60-SiO2 and Fe20Ni80-SiO2 gran ular solid; during reducing are described in detail and explained by u sing superparamagnetism, single-domain and multidomain theory.