Magnetic properties and magnetocaloric effect in amorphous FeNiCr (SiB) ribbons

被引：6

作者：

Tillaoui, S. ^{[1
]}

El Boubekri, A. ^{[1
]}

Sajieddine, M. ^{[1
,2
]}

Lassri, H. ^{[3
]}

Moubah, R. ^{[3
]}

Essoumhi, A. ^{[1
,4
]}

Hlil, E. K. ^{[5
]}

Sahlaoui, M. ^{[1
]}

Razouk, A. ^{[1
]}

机构：

[1] Sultan Moulay Slimane Univ, LPM, FST, BP 523, Beni Mellal 23000, Morocco

[2] Natl Sch Appl Sci, Khouribga, Morocco

[3] Hassan II Univ, Fac Sci Ain Chock, LPMMAT, Casablanca, Morocco

[4] Sultan Moulay Slimane Univ, FP, LPCMA, BP 523, Beni Mellal 23000, Morocco

[5] Univ Grenoble Alpes, Inst Neel, Grenoble INP, CNRS, F-38000 Grenoble, France

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2021年 / 523卷

关键词：

Amorphous; Magnetocaloric effect; X-ray diffraction; Mossbauer spectrometry; ENTROPY CHANGE; FE; TEMPERATURE; TRANSITION; MOSSBAUER; GD; NI; COMPOUND; SURFACE; MODEL;

D O I：

10.1016/j.jmmm.2020.167660

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Amorphous Fe76-xNixCr4(SiB)(20) (x = 12 and 25) ribbons were prepared using melt spinning technique. Their structural, magnetic and magnetocaloric properties were investigated using X-ray diffraction, vibrating sample magnetometer, and Mossbauer spectrometry. The samples were found to be amorphous. Room Mossbauer measurements ensured the amorphous state of Fe76-xNixCr4(SiB)\(20) ribbons and get further information about the effect of Ni content in the hyperfine parameters. The magnetic transition was analyzed in terms of Landau theory around the transition temperature. The amorphous alloys exhibit a second order transition from ferromagnetic to paramagnetic phase. With increasing Ni concentration, the Curie temperature decreases as well as the maximum entropy change(-Delta S-m(max) ) and relative cooling power (RCP). In addition, a phenomenological model was used to predict reasonably the magnetocaloric parameters.

引用

页数：7