In this study, effect of wheel cooling on magnetic properties of Nd15Fe77B8 alloy powders produced by melt spinning method has been investigated. The present method includes the cooling of the copper wheel by externally contacting a coolant block which is cooled by internally circulating freon gas. Within this framework, the effect of wheel temperature on the microstructure and magnetic properties of Nd15Fe77B8 powders have been investigated. The temperatures of cooling block and melt spinning wheel were measured as -15°C and -5°C, before experimental run, separately. Produced powders exhibited different morphologies depending on the powder sizes. The smallest size of powders was formed as spherical, ligamental and fiber-like morphologies. As powders get larger, the amount of spherical, ligamental and fiber-like shaped powders decreased and the length of the fibers declined. The microstructural cell sizes for 5 µm and 48 µm size powders were measured as 0.22 µm and 1.23 µm, respectively. The cooling rates of 4 µm, 28 µm and 52 µm sized powders were measured as 5.95 x 106 K/s, 0.85 x 106 K/s and 0.45 x 106 K/s, respectively. The Curie temperature of produced powders was 321.5°C. The coercivity value of melt-spun powders was obtained as 2.842 kOe.
| Published in | International Journal of Materials Science and Applications (Volume 6, Issue 5) |
| DOI | 10.11648/j.ijmsa.20170605.13 |
| Page(s) | 241-249 |
| 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. |
| Copyright |
Copyright © The Author(s), 2017. Published by Science Publishing Group |
Melt Spinning, Cooled Wheel, Nd15Fe77B8 Magnetic Alloy
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APA Style
Sultan Öztürk, Kürşat Icin, Bülent Öztürk, Uğur Topal, Hülya Kaftelen Odabaşi. (2017). Effect of Chill Wheel Cooling on Magnetic Properties of Nd15Fe77B8 Alloy Powders Produced by Melt Spinning Method. International Journal of Materials Science and Applications, 6(5), 241-249. https://doi.org/10.11648/j.ijmsa.20170605.13
ACS Style
Sultan Öztürk; Kürşat Icin; Bülent Öztürk; Uğur Topal; Hülya Kaftelen Odabaşi. Effect of Chill Wheel Cooling on Magnetic Properties of Nd15Fe77B8 Alloy Powders Produced by Melt Spinning Method. Int. J. Mater. Sci. Appl. 2017, 6(5), 241-249. doi: 10.11648/j.ijmsa.20170605.13
AMA Style
Sultan Öztürk, Kürşat Icin, Bülent Öztürk, Uğur Topal, Hülya Kaftelen Odabaşi. Effect of Chill Wheel Cooling on Magnetic Properties of Nd15Fe77B8 Alloy Powders Produced by Melt Spinning Method. Int J Mater Sci Appl. 2017;6(5):241-249. doi: 10.11648/j.ijmsa.20170605.13
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Download@article{10.11648/j.ijmsa.20170605.13,
author = {Sultan Öztürk and Kürşat Icin and Bülent Öztürk and Uğur Topal and Hülya Kaftelen Odabaşi},
title = {Effect of Chill Wheel Cooling on Magnetic Properties of Nd15Fe77B8 Alloy Powders Produced by Melt Spinning Method},
journal = {International Journal of Materials Science and Applications},
volume = {6},
number = {5},
pages = {241-249},
doi = {10.11648/j.ijmsa.20170605.13},
url = {https://doi.org/10.11648/j.ijmsa.20170605.13},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmsa.20170605.13},
abstract = {In this study, effect of wheel cooling on magnetic properties of Nd15Fe77B8 alloy powders produced by melt spinning method has been investigated. The present method includes the cooling of the copper wheel by externally contacting a coolant block which is cooled by internally circulating freon gas. Within this framework, the effect of wheel temperature on the microstructure and magnetic properties of Nd15Fe77B8 powders have been investigated. The temperatures of cooling block and melt spinning wheel were measured as -15°C and -5°C, before experimental run, separately. Produced powders exhibited different morphologies depending on the powder sizes. The smallest size of powders was formed as spherical, ligamental and fiber-like morphologies. As powders get larger, the amount of spherical, ligamental and fiber-like shaped powders decreased and the length of the fibers declined. The microstructural cell sizes for 5 µm and 48 µm size powders were measured as 0.22 µm and 1.23 µm, respectively. The cooling rates of 4 µm, 28 µm and 52 µm sized powders were measured as 5.95 x 106 K/s, 0.85 x 106 K/s and 0.45 x 106 K/s, respectively. The Curie temperature of produced powders was 321.5°C. The coercivity value of melt-spun powders was obtained as 2.842 kOe.},
year = {2017}
}
TY - JOUR T1 - Effect of Chill Wheel Cooling on Magnetic Properties of Nd15Fe77B8 Alloy Powders Produced by Melt Spinning Method AU - Sultan Öztürk AU - Kürşat Icin AU - Bülent Öztürk AU - Uğur Topal AU - Hülya Kaftelen Odabaşi Y1 - 2017/09/19 PY - 2017 N1 - https://doi.org/10.11648/j.ijmsa.20170605.13 DO - 10.11648/j.ijmsa.20170605.13 T2 - International Journal of Materials Science and Applications JF - International Journal of Materials Science and Applications JO - International Journal of Materials Science and Applications SP - 241 EP - 249 PB - Science Publishing Group SN - 2327-2643 UR - https://doi.org/10.11648/j.ijmsa.20170605.13 AB - In this study, effect of wheel cooling on magnetic properties of Nd15Fe77B8 alloy powders produced by melt spinning method has been investigated. The present method includes the cooling of the copper wheel by externally contacting a coolant block which is cooled by internally circulating freon gas. Within this framework, the effect of wheel temperature on the microstructure and magnetic properties of Nd15Fe77B8 powders have been investigated. The temperatures of cooling block and melt spinning wheel were measured as -15°C and -5°C, before experimental run, separately. Produced powders exhibited different morphologies depending on the powder sizes. The smallest size of powders was formed as spherical, ligamental and fiber-like morphologies. As powders get larger, the amount of spherical, ligamental and fiber-like shaped powders decreased and the length of the fibers declined. The microstructural cell sizes for 5 µm and 48 µm size powders were measured as 0.22 µm and 1.23 µm, respectively. The cooling rates of 4 µm, 28 µm and 52 µm sized powders were measured as 5.95 x 106 K/s, 0.85 x 106 K/s and 0.45 x 106 K/s, respectively. The Curie temperature of produced powders was 321.5°C. The coercivity value of melt-spun powders was obtained as 2.842 kOe. VL - 6 IS - 5 ER -
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