THERMAL-STABILITY OF NANOCRYSTALLINE NICKEL ELECTRODEPOSITS - DIFFERENTIAL SCANNING CALORIMETRY, TRANSMISSION ELECTRON-MICROSCOPY AND MAGNETIC STUDIES

Authors
CZIRAKI A TONKOVICS Z GEROCS I FOGARASSY B GROMA I TOTHKADAR E TARNOCZI T BAKONYI I
Citation
A. Cziraki et al., THERMAL-STABILITY OF NANOCRYSTALLINE NICKEL ELECTRODEPOSITS - DIFFERENTIAL SCANNING CALORIMETRY, TRANSMISSION ELECTRON-MICROSCOPY AND MAGNETIC STUDIES, Materials science & engineering. A, Structural materials: properties, microstructure and processing, 179, 1994, pp. 531-535
Citations number
6
Categorie Soggetti
Material Science
Journal title
Materials science & engineering. A, Structural materials: properties, microstructure and processing → ACNP
ISSN journal
09215093
Volume
179
Year of publication
1994
Pages
531 - 535
Database
ISI
SICI code
0921-5093(1994)179:<531:TONNE->2.0.ZU;2-E
Abstract
The grain-growth process of electrodeposited nanocrystalline Ni foils upon heating has been studied by differential scanning calorimetry (DS C), transmission electron microscopy (TEM) and X-ray diffraction (XRD) . The direct structural observations have shown that the exothermic ca lorimetric peak detected at about 600 K corresponds to a grain growth process. Furthermore, the TEM pictures indicate that dislocation loops are formed during grain growth. An almost complete recovery of the Cu rie point has also been observed, although its correlation with the st ructural changes is still to be revealed.