Crystallization kinetics and soft magnetic properties in metalloid-free (Fe, Co)90Zr10 amorphous and nanocrystalline alloys

Blázquez, J.S.; Ipus, J.J.; Conde, C.F.; Cabrera, D.; Franco, V.; Conde, A.

Abstract

Microstructure and magnetic properties of metalloid-free (Fe100−xCox)90Zr10 amorphous and nanocrystalline alloys were characterized. Devitrification of these amorphous alloys occurs in two overlapped transformations leading to the formation of α-Fe(Co) and Fe(Co)Zr2 phases. Constant local Avrami exponents have been found for each individual process. Although Co-free alloy shows a larger grain size, crystalline fractions are similar for both alloys after equivalent annealing. Good soft magnetic properties at room temperature have been observed for amorphous and nanocrystalline alloy with x = 30, which exhibits an amorphous Curie temperature of 735 K. The x = 0 amorphous alloy is paramagnetic at room temperature and nanocrystalline samples exhibit a transition to superparamagnetic behavior.

• Journal Article Type: Article
• Online Publication Date: Jan 21, 2014
• Publication Date: 2014-12
• Deposit Date: Jun 8, 2023
• Journal: Journal of Alloys and Compounds
• Print ISSN: 0925-8388
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 615
• Pages: S213-S216
• DOI: https://doi.org/10.1016/j.jallcom.2014.01.095
• Keywords: Materials Chemistry; Metals and Alloys; Mechanical Engineering; Mechanics of Materials
• Additional Information: This article is maintained by: Elsevier; Article Title: Crystallization kinetics and soft magnetic properties in metalloid-free (Fe, Co)90Zr10 amorphous and nanocrystalline alloys; Journal Title: Journal of Alloys and Compounds; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.jallcom.2014.01.095; Content Type: article; Copyright: Copyright © 2014 Elsevier B.V. All rights reserved.