The effect of annealing and crystallization on the magnetoelastic properties of Co-Si-B amorphous wires
Küçük Resim Yok
Tarih
1996
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Amer Inst Physics
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The field dependence of Young's modulus (Delta E effect) of amorphous wires of Co72.5Si12.5B15 has been studied in the as-quenched state, and after annealing for times between one and several hundred minutes at temperatures of 450, 480, and 500 degrees C. In the as-quenched state the Delta E effect is small (<2%), because the quenching stresses couple with the magnetostriction (lambda(s) similar to-3X10(-6)) to produce significant anisotropy. Annealing for short times (>1 min) is sufficient to relieve much of the quenching stress, resulting in magnetic softening and enhanced Delta E effect (at best >30%). Further annealing eventually reverses these trends, increasing coercivity and anisotropy, and reducing the Delta E effect. This behavior is attributed to surface crystallization. The results are interpreted in terms of the core-shell domain model, and are consistent with the retention of a significant component of circumferential domain structure in the shell in all annealing conditions studied. (C) 1996 American Institute of Physics.
Açıklama
Anahtar Kelimeler
Shear Modulus
Kaynak
Journal of Applied Physics
WoS Q Değeri
N/A
Scopus Q Değeri
N/A
Cilt
79
Sayı
3
