scholarly journals A Novel NDT Method for Coercive Force of Grain-Oriented Electrical Steel Applied in Cigarette Machines

2016 ◽  
Vol 2016 ◽  
pp. 1-5
Author(s):  
Hao Wang ◽  
Jianbo Zhan ◽  
Zhenhua Yu ◽  
Yao Yu ◽  
Liang Cheng ◽  
...  
Keyword(s):  
Domain Wall ◽  
Coercive Force ◽  
Magnetic Induction ◽  
Electrical Steel ◽  
Magnetic Domain ◽  
Barkhausen Noise ◽  
Intensity Increase ◽  
High Permeability ◽  
Formula Derivation ◽  
Magnetic Induction Intensity

Coercive force of grain-oriented electrical steel applied in cigarette machines is tested by a novel NDT method in which Barkhausen noise was applied. Linear relationship between coercive force and Barkhausen noise of conventional and high-permeability electrical steel was built and the precision of the model was verified. Experimental results show that the coercive force is linearly related to Barkhausen noise. The variation of coercive force with magnetic induction intensity increase was also interpreted in view of magnetic domain changing process, and the correlation formula derivation of MBN and coercive force domain wall was illustrated as well.

Influence of magnetic domain wall orientation on Barkhausen noise and magneto-mechanical behavior in electrical steel

2019 ◽  
Vol 52 (26) ◽  
pp. 265001 ◽  
Author(s):  
Fasheng Qiu ◽  
Matic Jovičević Klug ◽  
Guiyun Tian ◽  
Pan Hu ◽  
Jeffrey McCord
Keyword(s):  
Domain Wall ◽  
Mechanical Behavior ◽  
Electrical Steel ◽  
Magnetic Domain ◽  
Barkhausen Noise ◽  
Magnetic Domain Wall

Models between Barkhausen noise and coercive force of grain-oriented electrical steel

2013 ◽  
Author(s):  
Hao Wang ◽  
Changsheng Li ◽  
Ban Cai ◽  
Deniz Perin ◽  
Nkwachukwu Chukwuchekwa
Keyword(s):  
Coercive Force ◽  
Electrical Steel ◽  
Barkhausen Noise

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.

Numerical Analysis of a Magnetic Domain Wall in a Magnetic Nanocontact

2005 ◽  
Vol 29 (2) ◽  
pp. 116-119
Author(s):  
T. Komine ◽  
T. Takahashi ◽  
R. Sugita ◽  
T. Muranoi ◽  
Y. Hasegawa
Keyword(s):  
Numerical Analysis ◽  
Domain Wall ◽  
Magnetic Domain ◽  
Magnetic Domain Wall

BLENDALLOY 25-7904

Alloy Digest ◽  
1972 ◽  
Vol 21 (11) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Coercive Force ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
Heat Treating ◽  
Magnetic Shielding ◽  
High Permeability ◽  
Magnetic Cores ◽  
Very High

Abstract BLENDALLOY 25-7904 is an 80% nickel-15% iron-5% molybdenum alloy having very high permeability and low coercive force for magnetic cores in such applications as transformer laminations, sensitive magnetic amplifiers and magnetic shielding. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Ni-181. Producer or source: Spang Industries Inc..

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