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

Nlebedim, I. C.; Huang, M.; Sun, K.; Zhou, L.; McCallum, R. W.; Kramer, M. J.

doi:10.3390/magnetochemistry5010006

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

Journal Article · Tue Jan 22 00:00:00 EST 2019 · Magnetochemistry

DOI:https://doi.org/10.3390/magnetochemistry5010006· OSTI ID:1492338

Nlebedim, I. C. ^[1]; Huang, M. ^[1]; Sun, K. ^[1]; Zhou, L. ^[1]; McCallum, R. W. ^[1]; Kramer, M. J. ^[1]

Ames Lab., Ames, IA (United States)

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.

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Research Organization:: Ames Lab., Ames, IA (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC02-07CH11358, Energy Efficiency and Renewable Energy, Advanced Manufacturing Office,

OSTI ID:: 1492338

Report Number(s):: IS-J-9863; MAGNCZ

Journal Information:: Magnetochemistry, Vol. 5, Issue 1; ISSN 2312-7481

Publisher:: MDPICopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 5 works

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