Effect of Ga and Zr Substitution on the Properties of Dy<sub>2</sub>Fe<sub>17−X</sub>Zr<sub>X </sub>and Dy<sub>2</sub>Fe<sub>16</sub>Ga<sub>1−x</sub>Zr<sub>x</sub> (0 ≤ x ≤ 1) Intermetallic Compounds Prepared via Arc Melting Process
The effects of substitution of Zr and Ga on the structural and magnetic properties of Dy<sub>2</sub>Fe<sub>17 </sub>intermetallic compound were investigated in this study. The Rietveld analysis confirmed that the crystalline system was a Th<sub>2</sub>Ni<sub>...
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doaj-421ce32e7a4e4a8a90d85124099f6b222020-11-25T00:31:11ZengMDPI AGMagnetochemistry2312-74812020-02-0161910.3390/magnetochemistry6010009magnetochemistry6010009Effect of Ga and Zr Substitution on the Properties of Dy<sub>2</sub>Fe<sub>17−X</sub>Zr<sub>X </sub>and Dy<sub>2</sub>Fe<sub>16</sub>Ga<sub>1−x</sub>Zr<sub>x</sub> (0 ≤ x ≤ 1) Intermetallic Compounds Prepared via Arc Melting ProcessJiba Nath Dahal0K.S. Syed Ali1S.R. Mishra2Dipesh Neupane3Department of Physics and Astronomy, Truman State University, Kirksville, MO 63501, USADepartment of Science, Harmony Science Academy, 12005 Forestgate Dr., Dallas, TX-75243, USADepartment of Physics and Materials Science, University of Memphis, Memphis, TN 38152, USADepartment of Physics and Materials Science, University of Memphis, Memphis, TN 38152, USAThe effects of substitution of Zr and Ga on the structural and magnetic properties of Dy<sub>2</sub>Fe<sub>17 </sub>intermetallic compound were investigated in this study. The Rietveld analysis confirmed that the crystalline system was a Th<sub>2</sub>Ni<sub>17</sub> structure. Lattice parameters <i>a</i> (Å) and <i>c</i> (Å), unit cell volume (Å<sup>3</sup>), and bonding distance (Å) were calculated using Rietveld analysis. The unit cell volume of Dy<sub>2</sub>Fe<sub>17−x</sub>Zr<sub>x</sub> and Dy<sub>2</sub>Fe<sub>16</sub>Ga<sub>1−x</sub>Zr<sub>x</sub> increased linearly with Zr and Ga substitution. The Curie temperature (Tc) of Dy<sub>2</sub>Fe<sub>17−x</sub>Zr<sub>x</sub> and Dy<sub>2</sub>Fe<sub>16</sub>Ga<sub>1−x</sub>Zr<sub>x</sub> was found to be Zr content-dependent. The maximum Curie temperatures were observed at 510 K (<i>x</i> = 0.75 Zr content) for Dy<sub>2</sub>Fe<sub>17−x</sub>Zr<sub>x</sub> and 505.1 K (<i>x</i> = 0.5 Zr content) for Dy<sub>2</sub>Fe<sub>16</sub>Ga<sub>1−x</sub>Zr<sub>x</sub>, which are 102 K and 97 K higher than the value found for Dy<sub>2</sub>Fe<sub>17</sub>, respectively. The room-temperature Mössbauer analysis showed a decrease in the average hyperfine field and increases in the isomer shift with Zr doping. The overall improvement in Curie temperature with the substitution strategy of Zr−Ga substitution in 2:17 intermetallic compounds could find potential use of these magnetic compounds in high-temperature applications.https://www.mdpi.com/2312-7481/6/1/9permanent magnetic materials2:17 intermetallicx-ray diffractionrietveld analysismössbauer spectroscopycurie temperaturesoft magnetdoping |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jiba Nath Dahal K.S. Syed Ali S.R. Mishra Dipesh Neupane |
spellingShingle |
Jiba Nath Dahal K.S. Syed Ali S.R. Mishra Dipesh Neupane Effect of Ga and Zr Substitution on the Properties of Dy<sub>2</sub>Fe<sub>17−X</sub>Zr<sub>X </sub>and Dy<sub>2</sub>Fe<sub>16</sub>Ga<sub>1−x</sub>Zr<sub>x</sub> (0 ≤ x ≤ 1) Intermetallic Compounds Prepared via Arc Melting Process Magnetochemistry permanent magnetic materials 2:17 intermetallic x-ray diffraction rietveld analysis mössbauer spectroscopy curie temperature soft magnet doping |
author_facet |
Jiba Nath Dahal K.S. Syed Ali S.R. Mishra Dipesh Neupane |
author_sort |
Jiba Nath Dahal |
title |
Effect of Ga and Zr Substitution on the Properties of Dy<sub>2</sub>Fe<sub>17−X</sub>Zr<sub>X </sub>and Dy<sub>2</sub>Fe<sub>16</sub>Ga<sub>1−x</sub>Zr<sub>x</sub> (0 ≤ x ≤ 1) Intermetallic Compounds Prepared via Arc Melting Process |
title_short |
Effect of Ga and Zr Substitution on the Properties of Dy<sub>2</sub>Fe<sub>17−X</sub>Zr<sub>X </sub>and Dy<sub>2</sub>Fe<sub>16</sub>Ga<sub>1−x</sub>Zr<sub>x</sub> (0 ≤ x ≤ 1) Intermetallic Compounds Prepared via Arc Melting Process |
title_full |
Effect of Ga and Zr Substitution on the Properties of Dy<sub>2</sub>Fe<sub>17−X</sub>Zr<sub>X </sub>and Dy<sub>2</sub>Fe<sub>16</sub>Ga<sub>1−x</sub>Zr<sub>x</sub> (0 ≤ x ≤ 1) Intermetallic Compounds Prepared via Arc Melting Process |
title_fullStr |
Effect of Ga and Zr Substitution on the Properties of Dy<sub>2</sub>Fe<sub>17−X</sub>Zr<sub>X </sub>and Dy<sub>2</sub>Fe<sub>16</sub>Ga<sub>1−x</sub>Zr<sub>x</sub> (0 ≤ x ≤ 1) Intermetallic Compounds Prepared via Arc Melting Process |
title_full_unstemmed |
Effect of Ga and Zr Substitution on the Properties of Dy<sub>2</sub>Fe<sub>17−X</sub>Zr<sub>X </sub>and Dy<sub>2</sub>Fe<sub>16</sub>Ga<sub>1−x</sub>Zr<sub>x</sub> (0 ≤ x ≤ 1) Intermetallic Compounds Prepared via Arc Melting Process |
title_sort |
effect of ga and zr substitution on the properties of dy<sub>2</sub>fe<sub>17−x</sub>zr<sub>x </sub>and dy<sub>2</sub>fe<sub>16</sub>ga<sub>1−x</sub>zr<sub>x</sub> (0 ≤ x ≤ 1) intermetallic compounds prepared via arc melting process |
publisher |
MDPI AG |
series |
Magnetochemistry |
issn |
2312-7481 |
publishDate |
2020-02-01 |
description |
The effects of substitution of Zr and Ga on the structural and magnetic properties of Dy<sub>2</sub>Fe<sub>17 </sub>intermetallic compound were investigated in this study. The Rietveld analysis confirmed that the crystalline system was a Th<sub>2</sub>Ni<sub>17</sub> structure. Lattice parameters <i>a</i> (Å) and <i>c</i> (Å), unit cell volume (Å<sup>3</sup>), and bonding distance (Å) were calculated using Rietveld analysis. The unit cell volume of Dy<sub>2</sub>Fe<sub>17−x</sub>Zr<sub>x</sub> and Dy<sub>2</sub>Fe<sub>16</sub>Ga<sub>1−x</sub>Zr<sub>x</sub> increased linearly with Zr and Ga substitution. The Curie temperature (Tc) of Dy<sub>2</sub>Fe<sub>17−x</sub>Zr<sub>x</sub> and Dy<sub>2</sub>Fe<sub>16</sub>Ga<sub>1−x</sub>Zr<sub>x</sub> was found to be Zr content-dependent. The maximum Curie temperatures were observed at 510 K (<i>x</i> = 0.75 Zr content) for Dy<sub>2</sub>Fe<sub>17−x</sub>Zr<sub>x</sub> and 505.1 K (<i>x</i> = 0.5 Zr content) for Dy<sub>2</sub>Fe<sub>16</sub>Ga<sub>1−x</sub>Zr<sub>x</sub>, which are 102 K and 97 K higher than the value found for Dy<sub>2</sub>Fe<sub>17</sub>, respectively. The room-temperature Mössbauer analysis showed a decrease in the average hyperfine field and increases in the isomer shift with Zr doping. The overall improvement in Curie temperature with the substitution strategy of Zr−Ga substitution in 2:17 intermetallic compounds could find potential use of these magnetic compounds in high-temperature applications. |
topic |
permanent magnetic materials 2:17 intermetallic x-ray diffraction rietveld analysis mössbauer spectroscopy curie temperature soft magnet doping |
url |
https://www.mdpi.com/2312-7481/6/1/9 |
work_keys_str_mv |
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