scholarly journals Microstructure and Magnetic Properties of Grain Refined Pr2Co14B Melt-Spun Ribbons

2019 ◽  
Vol 5 (1) ◽  
pp. 6
Author(s):  
I. Nlebedim ◽  
M. Huang ◽  
K. Sun ◽  
L. Zhou ◽  
R. McCallum ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Room Temperature ◽  
Anisotropy Field ◽  
Triple Junctions ◽  
Heat Treated ◽  
Melt Spun ◽  
The Matrix ◽  
Melt Spun Ribbons ◽  
Low Solubility ◽  
Microstructure And Magnetic Properties

The correlation between the grain refining effect of TiC on the microstructure of Pr2Co14B melt-spun ribbons and the magnetic properties is presented in this study. TiC enabled greater control of microstructure both in the as-spun and heat treated Pr2Co14B, compared with the material without TiC. As a result, coercivity of the sample with TiC was nearly twice that of the sample without TiC. In addition to Pr2Co14B, two other phases were found in the sample with TiC: one rich in Co and the other having a composition near PrCo2. TiC was found near the grain boundaries and at triple junctions. Also no Ti or C was found in the matrix phase indicating extreme low solubility of the elements when both are present with Pr2Co14B. As expected, both the samples with and without TiC have similar anisotropy field but the presence of room temperature non-ferromagnetic phases (TiC and PrCo2), caused a small decrease in magnetization of the sample with TiC although the romance of the isotropic materials were comparable.

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.

Effects of quenching speeds on microstructure and magnetic properties of novel SmCo6.9Hf0.1(CNTs)0.05 melt-spun ribbons

2009 ◽  
Vol 57 (9) ◽  
pp. 2845-2850 ◽  
Author(s):  
Ji-Bing Sun ◽  
Dan Han ◽  
Chun-Xiang Cui ◽  
Wei Yang ◽  
Liang Li ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Melt Spun ◽  
Melt Spun Ribbons ◽  
Microstructure And Magnetic Properties

Phase formation, microstructure and magnetic properties investigation in Cu and Fe substituted SmCo5 melt-spun ribbons

2008 ◽  
Vol 463 (1-2) ◽  
pp. 73-77 ◽  
Author(s):  
K. Suresh ◽  
R. Gopalan ◽  
G. Bhikshamaiah ◽  
A.K. Singh ◽  
D.V. Sridhara Rao ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Phase Formation ◽  
Melt Spun ◽  
Melt Spun Ribbons ◽  
Microstructure And Magnetic Properties

Effect of Ti and C additions on the microstructure and magnetic properties of Nd6Pr1Fe80B13 melt-spun ribbons

2006 ◽  
Vol 54 (18) ◽  
pp. 4871-4879 ◽  
Author(s):  
D NAGAHAMA ◽  
T OHKUBO ◽  
T MIYOSHI ◽  
S HIROSAWA ◽  
K HONO
Keyword(s):  
Magnetic Properties ◽  
Melt Spun ◽  
Melt Spun Ribbons ◽  
Microstructure And Magnetic Properties

Effect of TiC additions to the microstructure and magnetic properties of Nd9.5Fe84.5B6 melt-spun ribbons

1998 ◽  
Vol 83 (11) ◽  
pp. 6631-6633 ◽  
Author(s):  
M. J. Kramer ◽  
C. P. Li ◽  
K. W. Dennis ◽  
R. W. McCallum ◽  
C. H. Sellers ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Melt Spun ◽  
Melt Spun Ribbons ◽  
Microstructure And Magnetic Properties

Effect of TiC addition on microstructure and magnetic properties for MRE2(Fe,Co)14B melt-spun ribbons (MRE=Nd+Y+Dy)

2006 ◽  
Vol 99 (8) ◽  
pp. 08B510 ◽  
Author(s):  
W. Tang ◽  
Y. Q. Wu ◽  
K. W. Dennis ◽  
M. J. Kramer ◽  
I. E. Anderson ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Melt Spun ◽  
Melt Spun Ribbons ◽  
Microstructure And Magnetic Properties

Effects of Nb substitution for Zr on the phases, microstructure and magnetic properties of Co80Zr18−xNbxB2 melt-spun ribbons

2012 ◽  
Vol 324 (18) ◽  
pp. 2771-2775 ◽  
Author(s):  
Zhipeng Hou ◽  
Jinbao Zhang ◽  
Shifeng Xu ◽  
Chunji Wu ◽  
Jingjing Zhang ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Melt Spun ◽  
Melt Spun Ribbons ◽  
Microstructure And Magnetic Properties
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