Lin Luo , Hongxian Shen , Lunyong Zhang , Zhiliang Ning , Jianfei Sun , Manh-Huong Phan
{"title":"金属/非金属比对(MnFe)x(P0.5Si0.5)微丝微结构和磁性能的影响","authors":"Lin Luo , Hongxian Shen , Lunyong Zhang , Zhiliang Ning , Jianfei Sun , Manh-Huong Phan","doi":"10.1016/j.pnsc.2024.08.004","DOIUrl":null,"url":null,"abstract":"<div><div>The effects of metal/non-metal ratio (M/NM = <em>x</em>: 1) on the microstructure and magnetocaloric properties of promising melt-extracted Mn–Fe–P–Si microwires with short heat treatment have been investigated here. More Fe<sub>2</sub>P principal phase, which is considered favorite for magnetocaloric effect (MCE), should achieve at low M/NM ratio and the fraction of Fe<sub>2</sub>P phase increased with the reduction of <em>x</em>. Meanwhile, the (Mn, Fe)<sub>3</sub>Si impurity phase is formed for <em>x</em> = 2.00–1.90 whereas change to (Mn, Fe)<sub>5</sub>Si<sub>3</sub> structure for <em>x</em> = 1.85. It's worth noting that a metal deficiency resulted in the thermal hysteresis (<em>T</em><sub>hys</sub>) and the magnetic hysteresis loss (<em>W</em><sub>y</sub>) decreased by ∼40 %., The magnetic transition temperature (<em>T</em><sub>tran</sub>), peak value of isothermal magnetic entropy change (−<span><math><mrow><mo>Δ</mo><msubsup><mi>S</mi><mtext>iso</mtext><mtext>peak</mtext></msubsup></mrow></math></span>), refrigerant capacity (<em>RC</em>) and effective refrigerant capacity (<em>RCE</em>) first increased then decreased with the decrease of <em>x</em>, and reached the maximums at <em>x</em> = 1.90, i.e., 370 K, 26.0 J kg<sup>−1</sup> K<sup>−1</sup>, 367.4 and 339.8 J kg<sup>−1</sup>, respectively. Therefore, the customizable microstructure and magnetic properties of the melt-extracted (MnFe)<sub><em>x</em></sub>(P<sub>0.5</sub>Si<sub>0.5</sub>) microwires will be achievable effectively by tuning M/NM ratio <em>x</em>, and optimized Mn–Fe–P–Si compounds with novel thermomagnetic properties will be obtained.</div></div>","PeriodicalId":20742,"journal":{"name":"Progress in Natural Science: Materials International","volume":null,"pages":null},"PeriodicalIF":4.8000,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The effect of metal/non-metal ratio on the microstructure and magnetic properties of (MnFe)x(P0.5Si0.5) microwires\",\"authors\":\"Lin Luo , Hongxian Shen , Lunyong Zhang , Zhiliang Ning , Jianfei Sun , Manh-Huong Phan\",\"doi\":\"10.1016/j.pnsc.2024.08.004\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The effects of metal/non-metal ratio (M/NM = <em>x</em>: 1) on the microstructure and magnetocaloric properties of promising melt-extracted Mn–Fe–P–Si microwires with short heat treatment have been investigated here. More Fe<sub>2</sub>P principal phase, which is considered favorite for magnetocaloric effect (MCE), should achieve at low M/NM ratio and the fraction of Fe<sub>2</sub>P phase increased with the reduction of <em>x</em>. Meanwhile, the (Mn, Fe)<sub>3</sub>Si impurity phase is formed for <em>x</em> = 2.00–1.90 whereas change to (Mn, Fe)<sub>5</sub>Si<sub>3</sub> structure for <em>x</em> = 1.85. It's worth noting that a metal deficiency resulted in the thermal hysteresis (<em>T</em><sub>hys</sub>) and the magnetic hysteresis loss (<em>W</em><sub>y</sub>) decreased by ∼40 %., The magnetic transition temperature (<em>T</em><sub>tran</sub>), peak value of isothermal magnetic entropy change (−<span><math><mrow><mo>Δ</mo><msubsup><mi>S</mi><mtext>iso</mtext><mtext>peak</mtext></msubsup></mrow></math></span>), refrigerant capacity (<em>RC</em>) and effective refrigerant capacity (<em>RCE</em>) first increased then decreased with the decrease of <em>x</em>, and reached the maximums at <em>x</em> = 1.90, i.e., 370 K, 26.0 J kg<sup>−1</sup> K<sup>−1</sup>, 367.4 and 339.8 J kg<sup>−1</sup>, respectively. Therefore, the customizable microstructure and magnetic properties of the melt-extracted (MnFe)<sub><em>x</em></sub>(P<sub>0.5</sub>Si<sub>0.5</sub>) microwires will be achievable effectively by tuning M/NM ratio <em>x</em>, and optimized Mn–Fe–P–Si compounds with novel thermomagnetic properties will be obtained.</div></div>\",\"PeriodicalId\":20742,\"journal\":{\"name\":\"Progress in Natural Science: Materials International\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.8000,\"publicationDate\":\"2024-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Progress in Natural Science: Materials International\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1002007124001904\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Progress in Natural Science: Materials International","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1002007124001904","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
The effect of metal/non-metal ratio on the microstructure and magnetic properties of (MnFe)x(P0.5Si0.5) microwires
The effects of metal/non-metal ratio (M/NM = x: 1) on the microstructure and magnetocaloric properties of promising melt-extracted Mn–Fe–P–Si microwires with short heat treatment have been investigated here. More Fe2P principal phase, which is considered favorite for magnetocaloric effect (MCE), should achieve at low M/NM ratio and the fraction of Fe2P phase increased with the reduction of x. Meanwhile, the (Mn, Fe)3Si impurity phase is formed for x = 2.00–1.90 whereas change to (Mn, Fe)5Si3 structure for x = 1.85. It's worth noting that a metal deficiency resulted in the thermal hysteresis (Thys) and the magnetic hysteresis loss (Wy) decreased by ∼40 %., The magnetic transition temperature (Ttran), peak value of isothermal magnetic entropy change (−), refrigerant capacity (RC) and effective refrigerant capacity (RCE) first increased then decreased with the decrease of x, and reached the maximums at x = 1.90, i.e., 370 K, 26.0 J kg−1 K−1, 367.4 and 339.8 J kg−1, respectively. Therefore, the customizable microstructure and magnetic properties of the melt-extracted (MnFe)x(P0.5Si0.5) microwires will be achievable effectively by tuning M/NM ratio x, and optimized Mn–Fe–P–Si compounds with novel thermomagnetic properties will be obtained.
期刊介绍:
Progress in Natural Science: Materials International provides scientists and engineers throughout the world with a central vehicle for the exchange and dissemination of basic theoretical studies and applied research of advanced materials. The emphasis is placed on original research, both analytical and experimental, which is of permanent interest to engineers and scientists, covering all aspects of new materials and technologies, such as, energy and environmental materials; advanced structural materials; advanced transportation materials, functional and electronic materials; nano-scale and amorphous materials; health and biological materials; materials modeling and simulation; materials characterization; and so on. The latest research achievements and innovative papers in basic theoretical studies and applied research of material science will be carefully selected and promptly reported. Thus, the aim of this Journal is to serve the global materials science and technology community with the latest research findings.
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