ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract It has been shown theoretically that the peak-to-peak ferromagnetic resonance (FMR) line-width (ΔH pp) should be proportional to the volume fraction (f) of the crystalline phase formed during annealing in ferromagnetic glasses. However, in the case of zero-magnetostrictive cobalt-based glasses (γ=0), ΔH pp should remain constant due to very low values of anisotropy. In Co68Fe4Mo1Si17B10 glass (γ=0), ΔH pp has been found to remain unaffected upon progressive crystallization. In Fe65Cr8B27 glass, ΔH pp has been found to be linearly proportional tof. Using this dependence, the activation energy of crystallization (E a) has been calculated. The value ofE a obtained from the FMR technique (248 kJ mol−1) agrees quite well with those from DTA studies using Kissinger's or Ozawa's technique.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01045363
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