The Structure and Magnetic Properties of Rapidly Quenched Fe<sub>72</sub>Ni<sub>8</sub>Nb<sub>4</sub>Si<sub>2</sub>B<sub>14</sub> Alloy
The complex structural and magnetic studies of the annealed rapidly quenched Cu-free Fe<sub>72</sub>Ni<sub>8</sub>Nb<sub>4</sub>Si<sub>2</sub>B<sub>14</sub> alloy (metallic ribbons form) are reported here. Based on the calorimetric results,...
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MDPI AG
2020-12-01
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| Online Access: | https://www.mdpi.com/1996-1944/14/1/5 |
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| author | Lukasz Hawelek Tymon Warski Patryk Wlodarczyk Marcin Polak Przemyslaw Zackiewicz Wojciech Maziarz Anna Wojcik Magdalena Steczkowska-Kempka Aleksandra Kolano-Burian |
| author_facet | Lukasz Hawelek Tymon Warski Patryk Wlodarczyk Marcin Polak Przemyslaw Zackiewicz Wojciech Maziarz Anna Wojcik Magdalena Steczkowska-Kempka Aleksandra Kolano-Burian |
| author_sort | Lukasz Hawelek |
| collection | DOAJ |
| description | The complex structural and magnetic studies of the annealed rapidly quenched Cu-free Fe<sub>72</sub>Ni<sub>8</sub>Nb<sub>4</sub>Si<sub>2</sub>B<sub>14</sub> alloy (metallic ribbons form) are reported here. Based on the calorimetric results, the conventional heat treatment process (with heating rate 10 °C/min and subsequent isothermal annealing for 20 min) for wound toroidal cores has been optimized to obtain the least lossy magnetic properties (for the minimum value of coercivity and magnetic core losses at 50 Hz). For optimal conditions, the complex permeability in the 10<sup>4</sup>–10<sup>8</sup> Hz frequency range together with core power losses obtained from magnetic induction dependence up to the frequency of 400 kHz was successfully measured. The average and local crystal structure was investigated by the use of the X-ray diffraction method and the transmission electron microscopy observations and proved its fully glassy state. Additionally, for the three temperature values, i.e., 310, 340 and 370 °C, the glass relaxation process study in the function of annealing time was carried out to obtain a deeper insight into the soft magnetic properties: magnetic permeability and cut-off frequency. For this type of Cu-free soft magnetic materials, the control of glass relaxation process (time and temperature) is extremely important to obtain proper magnetic properties. |
| first_indexed | 2024-03-10T13:51:44Z |
| format | Article |
| id | doaj.art-bc2d7d3e2c2f4b8c928a87ae62091897 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T13:51:44Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-bc2d7d3e2c2f4b8c928a87ae620918972023-11-21T02:03:32ZengMDPI AGMaterials1996-19442020-12-01141510.3390/ma14010005The Structure and Magnetic Properties of Rapidly Quenched Fe<sub>72</sub>Ni<sub>8</sub>Nb<sub>4</sub>Si<sub>2</sub>B<sub>14</sub> AlloyLukasz Hawelek0Tymon Warski1Patryk Wlodarczyk2Marcin Polak3Przemyslaw Zackiewicz4Wojciech Maziarz5Anna Wojcik6Magdalena Steczkowska-Kempka7Aleksandra Kolano-Burian8Lukasiewicz Research Network—Institute of Non-Ferrous Metals, 5 Sowinskiego str., 44-100 Gliwice, PolandLukasiewicz Research Network—Institute of Non-Ferrous Metals, 5 Sowinskiego str., 44-100 Gliwice, PolandLukasiewicz Research Network—Institute of Non-Ferrous Metals, 5 Sowinskiego str., 44-100 Gliwice, PolandLukasiewicz Research Network—Institute of Non-Ferrous Metals, 5 Sowinskiego str., 44-100 Gliwice, PolandLukasiewicz Research Network—Institute of Non-Ferrous Metals, 5 Sowinskiego str., 44-100 Gliwice, PolandInstitute of Metallurgy and Materials Science, Polish Academy of Sciences, 25 Reymonta str., 30-059 Krakow, PolandInstitute of Metallurgy and Materials Science, Polish Academy of Sciences, 25 Reymonta str., 30-059 Krakow, PolandLukasiewicz Research Network—Institute of Non-Ferrous Metals, 5 Sowinskiego str., 44-100 Gliwice, PolandLukasiewicz Research Network—Institute of Non-Ferrous Metals, 5 Sowinskiego str., 44-100 Gliwice, PolandThe complex structural and magnetic studies of the annealed rapidly quenched Cu-free Fe<sub>72</sub>Ni<sub>8</sub>Nb<sub>4</sub>Si<sub>2</sub>B<sub>14</sub> alloy (metallic ribbons form) are reported here. Based on the calorimetric results, the conventional heat treatment process (with heating rate 10 °C/min and subsequent isothermal annealing for 20 min) for wound toroidal cores has been optimized to obtain the least lossy magnetic properties (for the minimum value of coercivity and magnetic core losses at 50 Hz). For optimal conditions, the complex permeability in the 10<sup>4</sup>–10<sup>8</sup> Hz frequency range together with core power losses obtained from magnetic induction dependence up to the frequency of 400 kHz was successfully measured. The average and local crystal structure was investigated by the use of the X-ray diffraction method and the transmission electron microscopy observations and proved its fully glassy state. Additionally, for the three temperature values, i.e., 310, 340 and 370 °C, the glass relaxation process study in the function of annealing time was carried out to obtain a deeper insight into the soft magnetic properties: magnetic permeability and cut-off frequency. For this type of Cu-free soft magnetic materials, the control of glass relaxation process (time and temperature) is extremely important to obtain proper magnetic properties.https://www.mdpi.com/1996-1944/14/1/5soft magnetic materialsmetallic glasscrystallizationmagnetic properties |
| spellingShingle | Lukasz Hawelek Tymon Warski Patryk Wlodarczyk Marcin Polak Przemyslaw Zackiewicz Wojciech Maziarz Anna Wojcik Magdalena Steczkowska-Kempka Aleksandra Kolano-Burian The Structure and Magnetic Properties of Rapidly Quenched Fe<sub>72</sub>Ni<sub>8</sub>Nb<sub>4</sub>Si<sub>2</sub>B<sub>14</sub> Alloy Materials soft magnetic materials metallic glass crystallization magnetic properties |
| title | The Structure and Magnetic Properties of Rapidly Quenched Fe<sub>72</sub>Ni<sub>8</sub>Nb<sub>4</sub>Si<sub>2</sub>B<sub>14</sub> Alloy |
| title_full | The Structure and Magnetic Properties of Rapidly Quenched Fe<sub>72</sub>Ni<sub>8</sub>Nb<sub>4</sub>Si<sub>2</sub>B<sub>14</sub> Alloy |
| title_fullStr | The Structure and Magnetic Properties of Rapidly Quenched Fe<sub>72</sub>Ni<sub>8</sub>Nb<sub>4</sub>Si<sub>2</sub>B<sub>14</sub> Alloy |
| title_full_unstemmed | The Structure and Magnetic Properties of Rapidly Quenched Fe<sub>72</sub>Ni<sub>8</sub>Nb<sub>4</sub>Si<sub>2</sub>B<sub>14</sub> Alloy |
| title_short | The Structure and Magnetic Properties of Rapidly Quenched Fe<sub>72</sub>Ni<sub>8</sub>Nb<sub>4</sub>Si<sub>2</sub>B<sub>14</sub> Alloy |
| title_sort | structure and magnetic properties of rapidly quenched fe sub 72 sub ni sub 8 sub nb sub 4 sub si sub 2 sub b sub 14 sub alloy |
| topic | soft magnetic materials metallic glass crystallization magnetic properties |
| url | https://www.mdpi.com/1996-1944/14/1/5 |
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