Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 87: Issue 1
Thermal analysis of Fe(Co,Ni) based alloys prepared by mechanical alloying
Authors:
A. González University of Girona EPS, Campus Montilivi s/n Girona Spain 17071

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J. Bonastre University of Girona EPS, Campus Montilivi s/n Girona Spain 17071

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L. Escoda University of Girona EPS, Campus Montilivi s/n Girona Spain 17071

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J. Suñol University of Girona EPS, Campus Montilivi s/n Girona Spain 17071

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Pages:
255–258
Online Publication Date:
07 Feb 2007
Publication Date:
01 Jan 2007
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-006-7802-0
Keywords:
apparent activation energy; Fe(Co,Ni) based materials; mechanical alloying
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Abstract  

In this work several Fe(Co,Ni) based nanocrystalline alloys were obtained by mechanical alloying. Thermal study was performed by differential scanning calorimetry and thermogravimetry. After 80 h milling, all DSC scans show several reactions on heating. At low temperature, about 400 K, the exothermal process detected is associated to structural relaxation. In all alloys, the main crystallization process begins over 700 K and has apparent activation energy values between 3.7 and 3.1 eV at–1. The Co content increases the thermal stability of this process. Furthermore, thermomagnetic measurements confirm the Co solid solution into Fe. The ferromagnetic–paramagnetic transition occurs at about 900 K.

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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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