Magnetic domain structure of nanocrystalline FeMB (M = Zr, Nb) alloys revealed by Lorentz electron microscopy

1996 ◽  
Vol 160 ◽  
pp. 249-250 ◽  
Author(s):  
N. Hasegawa ◽  
A. Makino ◽  
A. Inoue ◽  
T. Masumoto
Keyword(s):  
Electron Microscopy ◽  
Domain Structure ◽  
Magnetic Domain ◽  
Magnetic Domain Structure

Micromagnetic Processes in Steels

1991 ◽  
Vol 232 ◽  
Author(s):  
A. D. Beale ◽  
M. G. Hetherington ◽  
J. P. Jakubovics ◽  
B. A. Lewis ◽  
C. B. Scruby
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Domain Structure ◽  
Magnetic Domain ◽  
Magnetic Domain Structure ◽  
Magnetoacoustic Emission ◽  
Transmission Electron ◽  
Heat Treated

ABSTRACTMagnetoacoustic emission (MAE) and Barkhausen emission (BE) measurements have been carried out on steel specimens heat treated to produce various microstructures ranging from martensitic/bainitic to ferritic/pearlitic. The magnetic domain structure of the specimens has been studied using transmission electron microscopy, and micromagnetic processes have been observed using an in-situ magnetizing device. The results are used in the interpretation of the MAE and BE measurements.

Electron Microscopy in the Study of Magnetic Materials

1985 ◽  
Vol 43 ◽  
pp. 202-205
Author(s):  
P.J. Grundy
Keyword(s):  
Electron Microscopy ◽  
Magnetic Properties ◽  
Electron Microscope ◽  
Magnetic Materials ◽  
Domain Structure ◽  
Magnetic Domain ◽  
Magnetic Domain Structure ◽  
X Ray ◽  
Lorentz Microscopy ◽  
Structure And Microstructure

The aim of this paper is to highlight in brief two main areas in recent electron microscope studies of magnetic materials. The first is in detailed micromagnetic investigations of a fundamental kind and the second is the observation and characterisation of magnetic properties, magnetic domain structure and microstructure in technically important materials. Detailed quantitative investigations of micromagnetic features have, of necessity, been confined to specialist techniques of Lorentz microscopy (LEM). However, conventional modes of TEM and SEM, and X-ray microanalysis complement the defocussed or Fresnel mode of LEM in giving a detailed characterisation of iragnetic materials. It is in this context that LEM has found the widest application.

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