Ítem
| Ministerio de Ciencia y Tecnología (Espanya) | |
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Suñol Martínez, Joan Josep
González Gasch, Àlex Escoda i Acero, Ma. Lluïsa Vilaró, A. |
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A conventional thermogravimeter has been adapted with a small magnet to detect the Curie temperature, T C. The measurements were performed in several Fe(Ni)NbB alloys developed in a nanocrystalline form by mechanical alloying. The B addition favors a slight diminution (10-20°C), and the Ni addition the existence of three transitions related with bccFe, fcc(Fe-Ni) abd fccNi-rich environments. Furthermore, complementary analysis were performed by means of differential thermal analysis, scanning electron microscopy with energy dispersive X-ray microanalysis and by induced coupled plasma. Small contamination was found. A mass increase (about 1 mass%) was detected by thermogravimetry related to oxidation. Analysis allows us to state the inhomogeneity of the alloys obtained after 80 h of milling Financial support from MICYT (project No. MAT2003-08271) and DURSI (project 2001SGR-00190) is acknowledged |
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| http://hdl.handle.net/2072/298089 | |
| eng | |
| Springer Verlag | |
| Tots els drets reservats | |
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Temperatura de Curie
Curie temperature Aliatges Alloys |
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| Curie temperature in Fe(Ni)Nb based mechanically alloyed materials | |
| info:eu-repo/semantics/article | |
| Recercat |
