Fabrication and Soft Magnetic Properties of Fe81.3Si4B10P4Cu0.7 Amorphous Powders by Using the Spinning-water Atomization Process
Soft magnetic Fe81.3Si4B10P4Cu0.7 powders have been fabricated by using spinning-water atomization process (SWAP) under the water pressure of 17.5 MPa and gas pressure of 2 MPa. To clarify the amorphous forming ability, thermal stability, and the corresponding soft magnetism, the as-SWAPed powders h...
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| Format: | Article |
| Language: | English |
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Kaunas University of Technology
2022-08-01
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| Series: | Medžiagotyra |
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| Online Access: | https://matsc.ktu.lt/index.php/MatSc/article/view/30017 |
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| author | Jiawei LI Zihao XU Zhenhua DAN Hui CHANG Akihiro MAKINO |
| author_facet | Jiawei LI Zihao XU Zhenhua DAN Hui CHANG Akihiro MAKINO |
| author_sort | Jiawei LI |
| collection | DOAJ |
| description | Soft magnetic Fe81.3Si4B10P4Cu0.7 powders have been fabricated by using spinning-water atomization process (SWAP) under the water pressure of 17.5 MPa and gas pressure of 2 MPa. To clarify the amorphous forming ability, thermal stability, and the corresponding soft magnetism, the as-SWAPed powders have been sieved into 6 groups with different powder sizes from 0 – 150 μm. After the analysis of the amorphous and crystalline characteristics, the morphology, and soft magnetic properties of these 6 groups of as-SWAPed powders, it is concluded that the SWAPs with a high cooling rate of 105 K/s can improve the amorphous forming abilities of Fe81.3Si4B10P4Cu0.7 powders up to 53 μm, the saturated magnetic flux density as high as 170 – 173 emu/g and the thermal stabilities higher than 112.8 K. The characteristic parameters of as-SWAPed powders above mentioned are close to those of the counterpart rapid solidified ribbons. The surface oxide layers on as-SWAPed powders mainly consist of Fe2O3, and are 10 nm thick, much thicker than these counterpart ribbons, which might help to weaken the eddy effects accompanying with the slight decrease of the saturated magnetic flux density. Due to the higher cooling rates of SWAPs than gas atomization processes and the better spheroidization of powders for SWAPs than water atomization processes, it is key for NANOMET® family alloys to increase their amorphous forming abilities and better the soft magnetic performances. |
| first_indexed | 2024-03-12T22:02:21Z |
| format | Article |
| id | doaj.art-a430f1efa8db444a87e8d6996c794d10 |
| institution | Directory Open Access Journal |
| issn | 1392-1320 2029-7289 |
| language | English |
| last_indexed | 2024-03-12T22:02:21Z |
| publishDate | 2022-08-01 |
| publisher | Kaunas University of Technology |
| record_format | Article |
| series | Medžiagotyra |
| spelling | doaj.art-a430f1efa8db444a87e8d6996c794d102023-07-25T04:41:47ZengKaunas University of TechnologyMedžiagotyra1392-13202029-72892022-08-0128331532110.5755/j02.ms.3001735271Fabrication and Soft Magnetic Properties of Fe81.3Si4B10P4Cu0.7 Amorphous Powders by Using the Spinning-water Atomization ProcessJiawei LI0Zihao XU1Zhenhua DAN2https://orcid.org/0000-0002-3026-685XHui CHANG3Akihiro MAKINO4Nanjing Tech UniversityNanjing Tech UniversityNanjing Tech UniversityNanjing Tech UniversityTohoku UniversitySoft magnetic Fe81.3Si4B10P4Cu0.7 powders have been fabricated by using spinning-water atomization process (SWAP) under the water pressure of 17.5 MPa and gas pressure of 2 MPa. To clarify the amorphous forming ability, thermal stability, and the corresponding soft magnetism, the as-SWAPed powders have been sieved into 6 groups with different powder sizes from 0 – 150 μm. After the analysis of the amorphous and crystalline characteristics, the morphology, and soft magnetic properties of these 6 groups of as-SWAPed powders, it is concluded that the SWAPs with a high cooling rate of 105 K/s can improve the amorphous forming abilities of Fe81.3Si4B10P4Cu0.7 powders up to 53 μm, the saturated magnetic flux density as high as 170 – 173 emu/g and the thermal stabilities higher than 112.8 K. The characteristic parameters of as-SWAPed powders above mentioned are close to those of the counterpart rapid solidified ribbons. The surface oxide layers on as-SWAPed powders mainly consist of Fe2O3, and are 10 nm thick, much thicker than these counterpart ribbons, which might help to weaken the eddy effects accompanying with the slight decrease of the saturated magnetic flux density. Due to the higher cooling rates of SWAPs than gas atomization processes and the better spheroidization of powders for SWAPs than water atomization processes, it is key for NANOMET® family alloys to increase their amorphous forming abilities and better the soft magnetic performances.https://matsc.ktu.lt/index.php/MatSc/article/view/30017spinning-water atomization processfe81.3si4b10p4cu0.7 amorphous powdersamorphous forming abilitythermal stabilitysoft magnetic performance |
| spellingShingle | Jiawei LI Zihao XU Zhenhua DAN Hui CHANG Akihiro MAKINO Fabrication and Soft Magnetic Properties of Fe81.3Si4B10P4Cu0.7 Amorphous Powders by Using the Spinning-water Atomization Process Medžiagotyra spinning-water atomization process fe81.3si4b10p4cu0.7 amorphous powders amorphous forming ability thermal stability soft magnetic performance |
| title | Fabrication and Soft Magnetic Properties of Fe81.3Si4B10P4Cu0.7 Amorphous Powders by Using the Spinning-water Atomization Process |
| title_full | Fabrication and Soft Magnetic Properties of Fe81.3Si4B10P4Cu0.7 Amorphous Powders by Using the Spinning-water Atomization Process |
| title_fullStr | Fabrication and Soft Magnetic Properties of Fe81.3Si4B10P4Cu0.7 Amorphous Powders by Using the Spinning-water Atomization Process |
| title_full_unstemmed | Fabrication and Soft Magnetic Properties of Fe81.3Si4B10P4Cu0.7 Amorphous Powders by Using the Spinning-water Atomization Process |
| title_short | Fabrication and Soft Magnetic Properties of Fe81.3Si4B10P4Cu0.7 Amorphous Powders by Using the Spinning-water Atomization Process |
| title_sort | fabrication and soft magnetic properties of fe81 3si4b10p4cu0 7 amorphous powders by using the spinning water atomization process |
| topic | spinning-water atomization process fe81.3si4b10p4cu0.7 amorphous powders amorphous forming ability thermal stability soft magnetic performance |
| url | https://matsc.ktu.lt/index.php/MatSc/article/view/30017 |
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