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Identification and quantification of microstructures formed during nanocrystallization of amorphous (Fe, Co)-Nb-(Si, B) systems

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National Technical University of Athens   

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Identification and quantification of microstructures formed during nanocrystallization of amorphous (Fe, Co)-Nb-(Si, B) systems (EN)
Kepaptsoglou, DM (EN)
Muller, D (EN)
Svec, P (EN)
Janickovic, D (EN)
Skorvanek, I (EN)
Deanko, M (EN)
Hristoforou, E (EN)
conferenceItem (EN)
2014-03-01T02:44:04Z
2006 (EN)
The effect of addition of Si and variation of the Fe/Co ratio on the evolution of the nanostructure was studied in a modification of the Fe-Nb-B system. The entire system (Fe, Co)73Nb7(Si, B) 20 was prepared in an amorphous state by rapid quenching using the planar flow casting method over a wide range of Fe/Co atomic ratios, ranging from 0 to 1. Nanocrystallization was investigated by evolution of the electrical resistivity with time and temperature. The microstructural analysis was performed using transmission electron microscopy as well as electron and X-ray diffraction. The results from microscopy observations were used to determine the distribution of grain size, which in these alloys attain very small dimensions of ∼5-8 nm. New algorithms of microscope image analysis were used for grain size determination, crucial for quantifying the microprocesses controlling nucleation and growth from the amorphous rapidly quenched phase. © 2006 The Authors. (EN)
Microscopy (EN)
electric resistance (EN)
observation (EN)
structure analysis (EN)
cobalt (EN)
image analysis (EN)
X ray diffraction (EN)
microscope (EN)
nanocrystal (EN)
conference paper (EN)
Image analysis (EN)
Amorphous alloys (EN)
silicon (EN)
FFT (EN)
crystal structure (EN)
crystallization (EN)
Nanocrystallization (EN)
iron (EN)
Fe-Co alloys (EN)
priority journal (EN)
boron (EN)
algorithm (EN)
Journal of Microscopy (EN)
English
BLACKWELL PUBLISHING (EN)
National Technical University of Athens
Digital Library of National Technical University of Athens | Dspace@NTUA
Κεντρική Βιβλιοθήκη Ε.Μ.Π.
Ιδρυματικό Αποθετήριο
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