Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 80: Issue 2
Curie temperature in Fe(Ni)Nb based mechanically alloyed materials
Authors:
J. J. Suńol GRMT, Dept. de Física. Universitat de Girona, Santaló s/n 17071 Girona, Spain

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A. González GRMT, Dept. de Física. Universitat de Girona, Santaló s/n 17071 Girona, Spain

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L. Escoda GRMT, Dept. de Física. Universitat de Girona, Santaló s/n 17071 Girona, Spain

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A. Vilaró GRMT, Dept. de Física. Universitat de Girona, Santaló s/n, 17071 Girona, Spain

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Pages:
257–261
Online Publication Date:
03 May 2005
Publication Date:
01 May 2005
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-005-0645-2
Keywords:
TG; mechanical alloying; Curie temperature; Fe-Nb based alloys
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Summary A conventional thermogravimeter has been adapted with a small magnet to detect the Curie temperature, TC. 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.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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