Ultrasonic stress wave interaction with domain walls in KD2PO4

1972 ◽  
Vol 22 (9) ◽  
pp. 826-831
Author(s):  
A. B. Sherman ◽  
D. Vajda
Keyword(s):  
Stress Wave ◽  
Domain Walls ◽  
Wave Interaction

scholarly journals Investigation of Stress Wave Interaction and Fragmentation in Granite During Multihole Blastings

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 185187-185197
Author(s):  
Chenglong He ◽  
Jinming Gao ◽  
Dayong Chen ◽  
Jianguang Xiao
Keyword(s):  
Stress Wave ◽  
Wave Interaction

Analytical Study for Stress Wave Interaction with Rock Joints Having Unequally Close–Open Behavior

2016 ◽  
Vol 49 (8) ◽  
pp. 3155-3164 ◽  
Author(s):  
J. C. Li ◽  
X. B. Zhao ◽  
H. B. Li ◽  
S. B. Chai ◽  
Q. H. Zhao
Keyword(s):  
Stress Wave ◽  
Analytical Study ◽  
Wave Interaction ◽  
Rock Joints

Stress Wave Interaction Between Two Adjacent Blast Holes

2015 ◽  
Vol 49 (5) ◽  
pp. 1803-1812 ◽  
Author(s):  
Changping Yi ◽  
Daniel Johansson ◽  
Ulf Nyberg ◽  
Ali Beyglou
Keyword(s):  
Stress Wave ◽  
Wave Interaction

scholarly journals Numerical simulation of stress wave interaction in short-delay blasting with a single free surface

PLoS ONE ◽  
2018 ◽  
Vol 13 (9) ◽  
pp. e0204166 ◽  
Author(s):  
Xianyang Qiu ◽  
Yifei Hao ◽  
Xiuzhi Shi ◽  
Hong Hao ◽  
Shu Zhang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Free Surface ◽  
Stress Wave ◽  
Wave Interaction ◽  
Short Delay

The direct determination of magnetic domain wall profiles using a split detector STEM

1978 ◽  
Vol 36 (1) ◽  
pp. 466-467
Author(s):  
J.N. Chapman ◽  
P.E. Batson ◽  
E.M. Waddell ◽  
R.P. Ferrier
Keyword(s):  
Electron Microscope ◽  
Domain Wall ◽  
Transmission Electron Microscope ◽  
Domain Walls ◽  
Photographic Plate ◽  
Magnetic Domain ◽  
Direct Determination ◽  
Quantitative Information ◽  
Scanning Transmission Electron Microscope ◽  
Transmission Electron

By far the most commonly used mode of Lorentz microscopy in the examination of ferromagnetic thin films is the Fresnel or defocus mode. Use of this mode in the conventional transmission electron microscope (CTEM) is straightforward and immediately reveals the existence of all domain walls present. However, if such quantitative information as the domain wall profile is required, the technique suffers from several disadvantages. These include the inability to directly observe fine image detail on the viewing screen because of the stringent illumination coherence requirements, the difficulty of accurately translating part of a photographic plate into quantitative electron intensity data, and, perhaps most severe, the difficulty of interpreting this data. One solution to the first-named problem is to use a CTEM equipped with a field emission gun (FEG) (Inoue, Harada and Yamamoto 1977) whilst a second is to use the equivalent mode of image formation in a scanning transmission electron microscope (STEM) (Chapman, Batson, Waddell, Ferrier and Craven 1977), a technique which largely overcomes the second-named problem as well.

Lorentz microscopy study of magnetic domain walls in Fe-Cr-Co alloys

1978 ◽  
Vol 36 (1) ◽  
pp. 462-463
Author(s):  
Yalcin Belli
Keyword(s):  
Domain Walls ◽  
Magnetic Domain ◽  
Microscopy Study ◽  
Ferromagnetic Phase ◽  
Stable Phase ◽  
Magnetic Domains ◽  
Lorentz Microscopy ◽  
Magnetic Hardening ◽  
Electron Microscopes ◽  
Co Alloys

Fe-Cr-Co alloys have great technological potential to replace Alnico alloys as hard magnets. The relationship between the microstructures and the magnetic properties has been recently established for some of these alloys. The magnetic hardening has been attributed to the decomposition of the high temperature stable phase (α) into an elongated Fe-rich ferromagnetic phase (α1) and a weakly magnetic or non-magnetic Cr-rich phase (α2). The relationships between magnetic domains and domain walls and these different phases are yet to be understood. The TEM has been used to ascertain the mechanism of magnetic hardening for the first time in these alloys. The present paper describes the magnetic domain structure and the magnetization reversal processes in some of these multiphase materials. Microstructures to change properties resulting from, (i) isothermal aging, (ii) thermomagnetic treatment (TMT) and (iii) TMT + stepaging have been chosen for this investigation. The Jem-7A and Philips EM-301 transmission electron microscopes operating at 100 kV have been used for the Lorentz microscopy study of the magnetic domains and their interactions with the finely dispersed precipitate phases.

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