Cobalt-rich magnetic phases in Zr–Co alloys

Effect of boron doping on nanostructure and magnetism of rapidly quenched Zr2Co11-based alloys

“…Rhombohedral Zr 2 Co 11 can therefore be produced by quenching the molten mixture so long as the quench rate is sufficiently high. 5,[7][8][9] The higher the quench rate, the larger the content of rhombohedral Zr 2 Co 11 and the more refined the nanostructure, both enhancing the coercivity. 3,8 However, binary Zr-Co ribbons have relatively low coercivities.…”

Exploring the Structural Complexity of Intermetallic Compounds by an Adaptive Genetic Algorithm

“…In particular, much attention has been focused on Zr 2 Co 11 and related phases prepared with different processing routes [9][10][11][12][13]. Studies have shown that some of the metastable phases close to the Zr 2 Co 11 intermetallic compound, resulting from the rapid quenching, exhibit strong magnetocrystalline anisotropy with a Curie temperature around 500°C [9,10].…”

Effect of annealing on nanostructure and magnetic properties of Zr2Co11 material

“…[14,15] Earlier work showed that dislocations were observed in nanocrystalline Zr2Co11 materials. [16] Compared to the asspun ribbons, some extra peaks exist in the annealed ribbons. It was concluded that annealing induces the appearance of recrystallization, which may coarsen the grain and decrease the density of structural disorder such as planar defects.…”

“…Defects including dislocation, grain boundary, and stacking faults usually exist in the Zr-Co alloys. [16] Generally, dislocation defects and grain boundary may act as the nucleation center of reversed domain and decrease the coercivity. Stacking faults may act as the pinning center and increase the coercivity.…”