The amorphous ribbon of composition Fe72.5Ag2Nb3Si13.5B9 has been prepared by rapid solidification technique under an atmosphere of pure argon and the amorphous nature has been confirmed by X-ray diffraction (XRD). The crystallization behavior and the nanocrystal formation have been studied by Differential Thermal Analysis (DTA) and XRD. The effect of annealing has been explained on the basis of XRD spectra. Magnetization measurements have been carried out using vibrating sample magnetometer (VSM). The activation energy for crystallization is evaluated by Kissinger’s plot. The peak temperature is found to be shifted towards the higher value with heating rate. The peak shift indicates the change of the values of Si-content of nanograins and therefore, the change of the lattice parameter of nanograins. At higher annealing temperature (Ta) the crystallization peak becomes smaller and displays diffused character meaning that substantial amount of crystallization of α-Fe (Si) phase has already been completed. The activation energy for α-Fe-(Si) phase is found to be 5.78 eV and 0.164 eV for before and after annealing respectively. The saturation magnetization (Ms) and Curie temperature (Tc) were found 114 emu/g and 305°C respectively. The sharp fall of magnetization at Tc is obtained which is an indication of homogeneity of the material.
| Published in | American Journal of Nano Research and Applications (Volume 6, Issue 3) |
| DOI | 10.11648/j.nano.20180603.11 |
| Page(s) | 60-66 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
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Copyright © The Author(s), 2018. Published by Science Publishing Group |
DTA, Annealing Temperature, Grain Size, Saturation Magnetization, Curie Temperature
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APA Style
Mohammad Mahmuduzzaman Tawhid, Sujit Kumer Shil, Mohammad Tahmid Shihab, Shibendra Shekher Sikder, Mohammad Abdul Gafur. (2018). The Crystallization Kinetics, Structural and Magnetic Properties of Fe72.5Ag2Nb3Si13.5B9 Amorphous Ribbons as Affected by Annealing. American Journal of Nano Research and Applications, 6(3), 60-66. https://doi.org/10.11648/j.nano.20180603.11
ACS Style
Mohammad Mahmuduzzaman Tawhid; Sujit Kumer Shil; Mohammad Tahmid Shihab; Shibendra Shekher Sikder; Mohammad Abdul Gafur. The Crystallization Kinetics, Structural and Magnetic Properties of Fe72.5Ag2Nb3Si13.5B9 Amorphous Ribbons as Affected by Annealing. Am. J. Nano Res. Appl. 2018, 6(3), 60-66. doi: 10.11648/j.nano.20180603.11
AMA Style
Mohammad Mahmuduzzaman Tawhid, Sujit Kumer Shil, Mohammad Tahmid Shihab, Shibendra Shekher Sikder, Mohammad Abdul Gafur. The Crystallization Kinetics, Structural and Magnetic Properties of Fe72.5Ag2Nb3Si13.5B9 Amorphous Ribbons as Affected by Annealing. Am J Nano Res Appl. 2018;6(3):60-66. doi: 10.11648/j.nano.20180603.11
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author = {Mohammad Mahmuduzzaman Tawhid and Sujit Kumer Shil and Mohammad Tahmid Shihab and Shibendra Shekher Sikder and Mohammad Abdul Gafur},
title = {The Crystallization Kinetics, Structural and Magnetic Properties of Fe72.5Ag2Nb3Si13.5B9 Amorphous Ribbons as Affected by Annealing},
journal = {American Journal of Nano Research and Applications},
volume = {6},
number = {3},
pages = {60-66},
doi = {10.11648/j.nano.20180603.11},
url = {https://doi.org/10.11648/j.nano.20180603.11},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.nano.20180603.11},
abstract = {The amorphous ribbon of composition Fe72.5Ag2Nb3Si13.5B9 has been prepared by rapid solidification technique under an atmosphere of pure argon and the amorphous nature has been confirmed by X-ray diffraction (XRD). The crystallization behavior and the nanocrystal formation have been studied by Differential Thermal Analysis (DTA) and XRD. The effect of annealing has been explained on the basis of XRD spectra. Magnetization measurements have been carried out using vibrating sample magnetometer (VSM). The activation energy for crystallization is evaluated by Kissinger’s plot. The peak temperature is found to be shifted towards the higher value with heating rate. The peak shift indicates the change of the values of Si-content of nanograins and therefore, the change of the lattice parameter of nanograins. At higher annealing temperature (Ta) the crystallization peak becomes smaller and displays diffused character meaning that substantial amount of crystallization of α-Fe (Si) phase has already been completed. The activation energy for α-Fe-(Si) phase is found to be 5.78 eV and 0.164 eV for before and after annealing respectively. The saturation magnetization (Ms) and Curie temperature (Tc) were found 114 emu/g and 305°C respectively. The sharp fall of magnetization at Tc is obtained which is an indication of homogeneity of the material.},
year = {2018}
}
TY - JOUR T1 - The Crystallization Kinetics, Structural and Magnetic Properties of Fe72.5Ag2Nb3Si13.5B9 Amorphous Ribbons as Affected by Annealing AU - Mohammad Mahmuduzzaman Tawhid AU - Sujit Kumer Shil AU - Mohammad Tahmid Shihab AU - Shibendra Shekher Sikder AU - Mohammad Abdul Gafur Y1 - 2018/10/22 PY - 2018 N1 - https://doi.org/10.11648/j.nano.20180603.11 DO - 10.11648/j.nano.20180603.11 T2 - American Journal of Nano Research and Applications JF - American Journal of Nano Research and Applications JO - American Journal of Nano Research and Applications SP - 60 EP - 66 PB - Science Publishing Group SN - 2575-3738 UR - https://doi.org/10.11648/j.nano.20180603.11 AB - The amorphous ribbon of composition Fe72.5Ag2Nb3Si13.5B9 has been prepared by rapid solidification technique under an atmosphere of pure argon and the amorphous nature has been confirmed by X-ray diffraction (XRD). The crystallization behavior and the nanocrystal formation have been studied by Differential Thermal Analysis (DTA) and XRD. The effect of annealing has been explained on the basis of XRD spectra. Magnetization measurements have been carried out using vibrating sample magnetometer (VSM). The activation energy for crystallization is evaluated by Kissinger’s plot. The peak temperature is found to be shifted towards the higher value with heating rate. The peak shift indicates the change of the values of Si-content of nanograins and therefore, the change of the lattice parameter of nanograins. At higher annealing temperature (Ta) the crystallization peak becomes smaller and displays diffused character meaning that substantial amount of crystallization of α-Fe (Si) phase has already been completed. The activation energy for α-Fe-(Si) phase is found to be 5.78 eV and 0.164 eV for before and after annealing respectively. The saturation magnetization (Ms) and Curie temperature (Tc) were found 114 emu/g and 305°C respectively. The sharp fall of magnetization at Tc is obtained which is an indication of homogeneity of the material. VL - 6 IS - 3 ER -
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