| Title: | Magnetocaloric effect in amorphous and partially crystallized Fe[sub](40)Ni[sub](38)Mo[sub]4B[sub](18) alloys |
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| Authors: | ID Thajudheen, Thanveer (Author)
ID Ramanujan, R. V. (Author)
ID Thomas, Senoy (Author) |
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| Files: |  https://pubs.aip.org/aip/adv/article/6/5/055322/997857/Magnetocaloric-effect-in-amorphous-and-partially
 Thanveer_et_al._-_2016_-_Magnetocaloric_effect_in_amorphous_and_partially_c.pdf (3,13 MB)
MD5: 9E571A4CD0D36DB7189BF0BB5EA25494
https://pubs.aip.org/aip/adv/article-pdf/doi/10.1063/1.4952969/12838868/055322_1_online.pdf
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| Language: | English |
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| Work type: | Unknown |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | UNG - University of Nova Gorica
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| Abstract: | A study of magnetocaloric effect in amorphous and partially crystallized Fe40Ni38Mo4B18 alloys is reported. Amorphous Fe40Ni38Mo4B18, near its magnetic ordering temperature (600K) showed a magnetic entropy change ΔSM of 1.1 J/KgK and a relative cooling power of 36J/Kg in a field change of 10 kOe. Amorphous samples were partially crystallized by annealing at 700 K at different time intervals. Partially crystallized samples showed two distinct magnetic ordering temperature, one corresponding to the precipitated FeNi nanocrystals and the other one corresponding to the boron rich amorphous matrix. Magnetic ordering temperature of the residual amorphous matrix got shifted to the lower temperatures on increasing the annealing duration. Partially crystallised samples showed a magnetic entropy change of about 0.27J/kgK near the magnetic ordering temperature of the amorphous matrix (540K) in a field change of 10 kOe. The decrease in ΔSM on partial crystallisation is attributed to the biphasic magnetic nature of the s |
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| Keywords: | magnetism, phase transitions, entropy, equations of state, alloys, amorphous materials, annealing |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Publication date: | 01.01.2016 |
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| Year of publishing: | 2016 |
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| Number of pages: | str. 1-9 |
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| Numbering: | Vol. 6, issue 5, [article no.] 055322 |
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| PID: | 20.500.12556/RUNG-9460  |
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| COBISS.SI-ID: | 214121475 |
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| UDC: | 53 |
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| ISSN on article: | 2158-3226 |
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| eISSN: | 2158-3226 |
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| DOI: | 10.1063/1.4952969 |
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| NUK URN: | URN:SI:UNG:REP:V7M5OMNI |
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| Publication date in RUNG: | 07.11.2024 |
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| Views: | 344 |
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| Downloads: | 3 |
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