Phase transformation and magnetocaloric effect of Co-doped Mn–Ni–In melt-spun ribbons

2020 ◽  
Vol 128 (5) ◽  
pp. 055110
Author(s):  
Yiqiao Yang ◽  
Zongbin Li ◽  
César Fidel Sánchez-Valdés ◽  
José Luis Sánchez Llamazares ◽  
Bo Yang ◽  
...  
Keyword(s):  
Phase Transformation ◽  
Magnetocaloric Effect ◽  
Melt Spun ◽  
Melt Spun Ribbons ◽  
Co Doped

Magnetic Phase Transition and Magnetocaloric Effect in Co-Doped Mn-Ni-Ge Melt-Spun Ribbons

2014 ◽  
Vol 50 (11) ◽  
pp. 1-4
Author(s):  
Xinguo Zhao ◽  
Min Tong ◽  
Chih Wei Shih ◽  
Wen Cheng Chang ◽  
Wei Liu ◽  
...  
Keyword(s):  
Phase Transition ◽  
Magnetocaloric Effect ◽  
Magnetic Phase Transition ◽  
Magnetic Phase ◽  
Melt Spun ◽  
Melt Spun Ribbons ◽  
Co Doped

Influence of Co-Doping on Magnetic Properties and Magnetocaloric Effect of Fe–Co–Zr–Cu–B Melt-Spun Ribbons

2021 ◽  
Vol 21 (4) ◽  
pp. 2552-2557
Author(s):  
Nguyen Hai Yen ◽  
Nguyen Hoang Ha ◽  
Pham Thi Thanh ◽  
Nguyen Huy Ngoc ◽  
Tran Dang Thanh ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Magnetocaloric Effect ◽  
Melt Spinning ◽  
Room Temperature ◽  
Tangential Velocity ◽  
Magnetic Behavior ◽  
Entropy Change ◽  
Co Doping ◽  
Melt Spun ◽  
Melt Spun Ribbons

In this work, we investigated magnetic properties and magnetocaloric effect in Fe90−xCoxZr7Cu1B2 (x = 0, 1, 2, 3 and 4) melt-spun ribbons. The ribbons were prepared by using a melt-spinning method with a tangential velocity of a copper wheel of 40 m·s-1. The obtained ribbons are almost amorphous. The alloys exhibit typical soft magnetic behavior with low coercivity at room temperature. A minor replacement of Fe by Co gives an increment in Curie temperature (TC) of the alloys to higher temperatures. The TC of the alloys increases from 242 to 342 K with an increase of x from 0 to 4. Maximum magnetic entropy change, ΔSm max, of the alloys, was found to be larger than 0.7 J·kg-1·K-1 in a magnetic field change ΔH of 12 kOe for all the concentrations of Co. High refrigerant capacitys (RC >100 J ·kg-1 with ΔH = 12 kOe) at room temperature region have been obtained for the alloys. The large magnetocaloric effect near room temperature suggests that the alloys can be considered as magnetic refrigerants in the range of 250–350 K.

Critical behavior and magnetocaloric effect of Gd65Mn35−xGex (x = 0, 5, and 10) melt-spun ribbons

2012 ◽  
Vol 112 (3) ◽  
pp. 033903 ◽  
Author(s):  
X. C. Zhong ◽  
J. X. Min ◽  
Z. G. Zheng ◽  
Z. W. Liu ◽  
D. C. Zeng
Keyword(s):  
Magnetocaloric Effect ◽  
Critical Behavior ◽  
Melt Spun ◽  
Melt Spun Ribbons

Transformation behavior and magnetocaloric effect in Mn1−xCrxCoGe (x = 0.04 and 0.11) melt-spun ribbons tailored by heat treatment

2017 ◽  
Vol 444 ◽  
pp. 263-269 ◽  
Author(s):  
Gerardo Daniel-Pérez ◽  
J.L. Sánchez Llamazares ◽  
P. Alvarez-Alonso ◽  
C.F. Sánchez-Valdés ◽  
R. Varga ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Magnetocaloric Effect ◽  
Transformation Behavior ◽  
Melt Spun ◽  
Melt Spun Ribbons

In-situ phase transformation studies of Ni48Mn39In13 melt-spun ribbons

2012 ◽  
Vol 25 ◽  
pp. 126-130 ◽  
Author(s):  
D.M. Raj kumar ◽  
D.V. Sridhara Rao ◽  
N.V. Rama Rao ◽  
M. Manivel Raja ◽  
R.K. Singh ◽  
...  
Keyword(s):  
Phase Transformation ◽  
Melt Spun ◽  
Melt Spun Ribbons

A Large Inverse Magnetocaloric Effect in Ni49.0Mn37.4Sn13.6 Melt-Spun Ribbons at Room Temperature

2009 ◽  
Vol 1 (3) ◽  
pp. 151-155 ◽  
Author(s):  
Ingale Babita ◽  
Raghavan Gopalan ◽  
Shanker Ram ◽  
Hans-Jörg Fecht
Keyword(s):  
Magnetocaloric Effect ◽  
Room Temperature ◽  
Melt Spun ◽  
Melt Spun Ribbons

scholarly journals Enhanced magnetocaloric effect in rapidly solidified HoNi2 melt-spun ribbons

2019 ◽  
Vol 774 ◽  
pp. 700-705 ◽  
Author(s):  
J.L. Sánchez Llamazares ◽  
P. Ibarra-Gaytán ◽  
C.F. Sánchez-Valdés ◽  
Pablo Álvarez-Alonso ◽  
R. Varga
Keyword(s):  
Magnetocaloric Effect ◽  
Melt Spun ◽  
Melt Spun Ribbons ◽  
Rapidly Solidified

Metastable Phase Transformations in Ti-40Al-10V Alloy

1994 ◽  
Vol 364 ◽  
Author(s):  
G. Shao ◽  
P. Tsakiropoulos ◽  
A. P. Miodownik
Keyword(s):  
Phase Transformation ◽  
Phase Transformations ◽  
Volume Fraction ◽  
Metastable Phase ◽  
Equilibrium Phase ◽  
Rapid Quenching ◽  
Β Phase ◽  
Transformation Sequence ◽  
Melt Spun ◽  
Melt Spun Ribbons

AbstractThe microstructures in arc melted ingots and melt spun ribbons have been investigated by electron microscopy and thermodynamic modelling has been used to study the phase transformations. In the ingot, solidification starts with the bcc β phase and at room temperature the structure consists of B2, ωordered, γ and α2 phases. The calculated equilibrium phase transformation sequence during cooling is L → L+ β→β→β + α→β2+α → α+β2+γ → α2+γ + B2. The phase transformation sequence is dramatically changed by rapid quenching from the melt. Athermal ordered w phase is formed in metastable B2 and the α→α2 ordering process is completely suppressed in the melt spun ribbons. The volume fraction of the α precipitates is also dependent on cooling rates.

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