Next Article in Journal
Acknowledgement to Reviewers of Magnetochemistry in 2018
Previous Article in Journal
Stepwise Synthesis, Hydrogen-Bonded Supramolecular Structure, and Magnetic Property of a Co–Mn Heterodinuclear Complex
Previous Article in Special Issue
Structural, Magnetic, and Mössbauer Studies of Transition Metal-Doped Gd2Fe16Ga0.5TM0.5 Intermetallic Compounds (TM = Cr, Mn, Co, Ni, Cu, and Zn)
Article Menu

Export Article

Open AccessArticle
Magnetochemistry 2019, 5(1), 6; https://doi.org/10.3390/magnetochemistry5010006

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

1
Critical Materials Institute, Ames Laboratory, U.S. DOE, Ames, IA 50014, USA
2
Division of Materials Science and Engineering, Ames Laboratory, U.S. DOE, Ames, IA 50014, USA
*
Author to whom correspondence should be addressed.
Received: 29 November 2018 / Revised: 30 December 2018 / Accepted: 3 January 2019 / Published: 22 January 2019
(This article belongs to the Special Issue Permanent Magnets)
Full-Text   |   PDF [4176 KB, uploaded 22 January 2019]   |  

Abstract

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. View Full-Text
Keywords: microstructure; permanent magnets; Pr2Co14B; TiC; melt spun ribbons; transmission electron microscopy (TEM); refractory carbides microstructure; permanent magnets; Pr2Co14B; TiC; melt spun ribbons; transmission electron microscopy (TEM); refractory carbides
Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Nlebedim, I.C.; Huang, M.; Sun, K.; Zhou, L.; McCallum, R.W.; Kramer, M.J. Microstructure and Magnetic Properties of Grain Refined Pr2Co14B Melt-Spun Ribbons. Magnetochemistry 2019, 5, 6.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Magnetochemistry EISSN 2312-7481 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top