M. Molaahmadi, M. Tavoosi, A. Ghasemi, Gh. R. Gordani
{"title":"快速凝固Co78Zr17B2Si1M2 (M = W, Cr, Mo)合金的组织和磁性","authors":"M. Molaahmadi, M. Tavoosi, A. Ghasemi, Gh. R. Gordani","doi":"10.1007/s10948-023-06604-6","DOIUrl":null,"url":null,"abstract":"<div><p>This research explored the effects of W, Mo, and Cr elements on the structural and magnetic characteristics of Co<sub>78</sub>Zr<sub>17</sub>B<sub>2</sub>Si<sub>1</sub>M<sub>2</sub> (M?=?W, Cr, Mo) alloys. Toward this goal, vacuum arc melting technique was used to prepare the initial ingots, and rapid solidification process was followed by the melt-spinning technique. The samples were evaluated using X-ray diffractometer (XRD), field emission scanning electron microscopy (FESEM), differential scanning calorimetry (DSC), and vibrating sample magnetometer (VSM). Based on the results, the Co<sub>5</sub>Zr magnetic phase with coercivity (Hc) and saturation magnetization (Ms) within 2.7–3?Oe and 30–42?emu/g was successfully formed in Co<sub>78</sub>Zr<sub>17</sub>B<sub>2</sub>Si<sub>1</sub>M<sub>2</sub> (M?=?W, Cr, Mo) systems during the melt-spinning process. Performing the annealing process at a temperature lower than 400?°C led to an increase in the percentage of the Co<sub>5</sub>Zr magnetic phase as well as Hc (to about 4.6?kOe in the Co<sub>78</sub>Zr<sub>17</sub>B<sub>2</sub>Si<sub>1</sub>Cr<sub>2</sub> sample). In contrast, the precipitation of Co<sub>11</sub>Zr<sub>2</sub> and Co<sub>23</sub>Zr<sub>6</sub> compounds during the annealing process over 500?°C had destructive effects on the hard magnetic properties of the studied samples.</p></div>","PeriodicalId":669,"journal":{"name":"Journal of Superconductivity and Novel Magnetism","volume":"36 6","pages":"1601 - 1609"},"PeriodicalIF":1.6000,"publicationDate":"2023-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10948-023-06604-6.pdf","citationCount":"0","resultStr":"{\"title\":\"Structural and Magnetic Characteristics of Rapid Solidified Co78Zr17B2Si1M2 (M = W, Cr, Mo) alloys\",\"authors\":\"M. Molaahmadi, M. Tavoosi, A. Ghasemi, Gh. R. Gordani\",\"doi\":\"10.1007/s10948-023-06604-6\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>This research explored the effects of W, Mo, and Cr elements on the structural and magnetic characteristics of Co<sub>78</sub>Zr<sub>17</sub>B<sub>2</sub>Si<sub>1</sub>M<sub>2</sub> (M?=?W, Cr, Mo) alloys. Toward this goal, vacuum arc melting technique was used to prepare the initial ingots, and rapid solidification process was followed by the melt-spinning technique. The samples were evaluated using X-ray diffractometer (XRD), field emission scanning electron microscopy (FESEM), differential scanning calorimetry (DSC), and vibrating sample magnetometer (VSM). Based on the results, the Co<sub>5</sub>Zr magnetic phase with coercivity (Hc) and saturation magnetization (Ms) within 2.7–3?Oe and 30–42?emu/g was successfully formed in Co<sub>78</sub>Zr<sub>17</sub>B<sub>2</sub>Si<sub>1</sub>M<sub>2</sub> (M?=?W, Cr, Mo) systems during the melt-spinning process. Performing the annealing process at a temperature lower than 400?°C led to an increase in the percentage of the Co<sub>5</sub>Zr magnetic phase as well as Hc (to about 4.6?kOe in the Co<sub>78</sub>Zr<sub>17</sub>B<sub>2</sub>Si<sub>1</sub>Cr<sub>2</sub> sample). In contrast, the precipitation of Co<sub>11</sub>Zr<sub>2</sub> and Co<sub>23</sub>Zr<sub>6</sub> compounds during the annealing process over 500?°C had destructive effects on the hard magnetic properties of the studied samples.</p></div>\",\"PeriodicalId\":669,\"journal\":{\"name\":\"Journal of Superconductivity and Novel Magnetism\",\"volume\":\"36 6\",\"pages\":\"1601 - 1609\"},\"PeriodicalIF\":1.6000,\"publicationDate\":\"2023-07-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://link.springer.com/content/pdf/10.1007/s10948-023-06604-6.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Superconductivity and Novel Magnetism\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10948-023-06604-6\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"PHYSICS, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Superconductivity and Novel Magnetism","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1007/s10948-023-06604-6","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, APPLIED","Score":null,"Total":0}
Structural and Magnetic Characteristics of Rapid Solidified Co78Zr17B2Si1M2 (M = W, Cr, Mo) alloys
This research explored the effects of W, Mo, and Cr elements on the structural and magnetic characteristics of Co78Zr17B2Si1M2 (M?=?W, Cr, Mo) alloys. Toward this goal, vacuum arc melting technique was used to prepare the initial ingots, and rapid solidification process was followed by the melt-spinning technique. The samples were evaluated using X-ray diffractometer (XRD), field emission scanning electron microscopy (FESEM), differential scanning calorimetry (DSC), and vibrating sample magnetometer (VSM). Based on the results, the Co5Zr magnetic phase with coercivity (Hc) and saturation magnetization (Ms) within 2.7–3?Oe and 30–42?emu/g was successfully formed in Co78Zr17B2Si1M2 (M?=?W, Cr, Mo) systems during the melt-spinning process. Performing the annealing process at a temperature lower than 400?°C led to an increase in the percentage of the Co5Zr magnetic phase as well as Hc (to about 4.6?kOe in the Co78Zr17B2Si1Cr2 sample). In contrast, the precipitation of Co11Zr2 and Co23Zr6 compounds during the annealing process over 500?°C had destructive effects on the hard magnetic properties of the studied samples.
期刊介绍：
The Journal of Superconductivity and Novel Magnetism serves as the international forum for the most current research and ideas in these fields. This highly acclaimed journal publishes peer-reviewed original papers, conference proceedings and invited review articles that examine all aspects of the science and technology of superconductivity, including new materials, new mechanisms, basic and technological properties, new phenomena, and small- and large-scale applications. Novel magnetism, which is expanding rapidly, is also featured in the journal. The journal focuses on such areas as spintronics, magnetic semiconductors, properties of magnetic multilayers, magnetoresistive materials and structures, magnetic oxides, etc. Novel superconducting and magnetic materials are complex compounds, and the journal publishes articles related to all aspects their study, such as sample preparation, spectroscopy and transport properties as well as various applications.
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