Determination of activation energy spectrum for Fe40Ni40B20 metallic glasses
Апстракт
Very inherent metastable character of amorphous metal alloys, induces structure phase transformations which manifest themselves in thermally activated relaxation processes. The kinetics of these processes can be interpreted with the aid of two models: two equilibrium states and spectrum of activation energies. Structure relaxation of amorphous Fe40Ni40B20 metallic glass has been observed by measuring changes in electrical resistivity at corresponding isothermal treatments. Electrical resistance changes have been measured at liquid nitrogen temperature (78 K) using the d.c. method and a fixed probe. By measuring the resistivity change during isothermal treatment, logarithmic kinetics has been observed. Also, Q(E) function has been derived having a symmetric distribution around the value of activation energy of 2.1 eV, determined by some other methods too.
Кључне речи:
relaxation phenomena / AES model / resistance measurementИзвор:
Materials Science Forum, 1998, 282-2, 33-36Напомена:
- Advanced Materials and Processes, 2nd Yugoslav Conference on Advanced Materials (YUGOMAT II), Sep 15-19, 1997, Herceg Novi, Yugoslavia
DOI: 10.4028/www.scientific.net/MSF.282-283.33
ISSN: 0255-5476
WoS: 000075079900005
[ Google Scholar ]Колекције
Институција/група
VinčaTY - JOUR AU - Tomić, Predrag AU - Davidović, Milorad P. AU - Arsenijević, B PY - 1998 UR - https://vinar.vin.bg.ac.rs/handle/123456789/6241 AB - Very inherent metastable character of amorphous metal alloys, induces structure phase transformations which manifest themselves in thermally activated relaxation processes. The kinetics of these processes can be interpreted with the aid of two models: two equilibrium states and spectrum of activation energies. Structure relaxation of amorphous Fe40Ni40B20 metallic glass has been observed by measuring changes in electrical resistivity at corresponding isothermal treatments. Electrical resistance changes have been measured at liquid nitrogen temperature (78 K) using the d.c. method and a fixed probe. By measuring the resistivity change during isothermal treatment, logarithmic kinetics has been observed. Also, Q(E) function has been derived having a symmetric distribution around the value of activation energy of 2.1 eV, determined by some other methods too. T2 - Materials Science Forum T1 - Determination of activation energy spectrum for Fe40Ni40B20 metallic glasses VL - 282-2 SP - 33 EP - 36 DO - 10.4028/www.scientific.net/MSF.282-283.33 ER -
@article{ author = "Tomić, Predrag and Davidović, Milorad P. and Arsenijević, B", year = "1998", abstract = "Very inherent metastable character of amorphous metal alloys, induces structure phase transformations which manifest themselves in thermally activated relaxation processes. The kinetics of these processes can be interpreted with the aid of two models: two equilibrium states and spectrum of activation energies. Structure relaxation of amorphous Fe40Ni40B20 metallic glass has been observed by measuring changes in electrical resistivity at corresponding isothermal treatments. Electrical resistance changes have been measured at liquid nitrogen temperature (78 K) using the d.c. method and a fixed probe. By measuring the resistivity change during isothermal treatment, logarithmic kinetics has been observed. Also, Q(E) function has been derived having a symmetric distribution around the value of activation energy of 2.1 eV, determined by some other methods too.", journal = "Materials Science Forum", title = "Determination of activation energy spectrum for Fe40Ni40B20 metallic glasses", volume = "282-2", pages = "33-36", doi = "10.4028/www.scientific.net/MSF.282-283.33" }
Tomić, P., Davidović, M. P.,& Arsenijević, B.. (1998). Determination of activation energy spectrum for Fe40Ni40B20 metallic glasses. in Materials Science Forum, 282-2, 33-36. https://doi.org/10.4028/www.scientific.net/MSF.282-283.33
Tomić P, Davidović MP, Arsenijević B. Determination of activation energy spectrum for Fe40Ni40B20 metallic glasses. in Materials Science Forum. 1998;282-2:33-36. doi:10.4028/www.scientific.net/MSF.282-283.33 .
Tomić, Predrag, Davidović, Milorad P., Arsenijević, B, "Determination of activation energy spectrum for Fe40Ni40B20 metallic glasses" in Materials Science Forum, 282-2 (1998):33-36, https://doi.org/10.4028/www.scientific.net/MSF.282-283.33 . .