scholarly journals Estimation of localized current anomalies in polymer electrolyte fuel cells from magnetic flux density measurements

AIP Advances ◽  
2016 ◽  
Vol 6 (5) ◽  
pp. 056603 ◽  
Author(s):  
Takaaki Nara ◽  
Masanori Koike ◽  
Shigeru Ando ◽  
Yuji Gotoh ◽  
Masaaki Izumi
Keyword(s):  
Fuel Cells ◽  
Magnetic Flux ◽  
Polymer Electrolyte ◽  
Flux Density ◽  
Polymer Electrolyte Fuel Cells ◽  
Magnetic Flux Density ◽  
Density Measurements

scholarly journals Magnetic flux density measurements from grain boundary phase in 0.1 at% Ga-doped Nd–Fe–B sintered magnet

2020 ◽  
Vol 178 ◽  
pp. 533-538 ◽  
Author(s):  
Youngji Cho ◽  
Taisuke Sasaki ◽  
Ken Harada ◽  
Atsuko Sato ◽  
Takehiro Tamaoka ◽  
...  
Keyword(s):  
Grain Boundary ◽  
Magnetic Flux ◽  
Flux Density ◽  
Boundary Phase ◽  
Magnetic Flux Density ◽  
Sintered Magnet ◽  
Density Measurements

scholarly journals Magnetic flux density measurements from narrow grain boundaries produced in sintered permanent magnets

Microscopy ◽  
2020 ◽  
Author(s):  
Youngji Cho ◽  
Sujin Lee ◽  
Yasukazu Murakami
Keyword(s):  
Magnetic Flux ◽  
Flux Density ◽  
Permanent Magnets ◽  
Thin Foil ◽  
Magnetic Flux Density ◽  
Electron Holography ◽  
Sintered Magnet ◽  
Density Measurements ◽  
Interface Magnetism

Abstract This review examines methods of magnetic flux density measurements from the narrow grain boundary (GB) regions, the thickness of which is of the order of nanometers, produced in Nd–Fe–B-based sintered magnets. Despite of the complex crystallographic microstructure and the significant stray magnetic field of the sintered magnet, recent progress in electron holography allowed for the determination of the intrinsic magnetic flux density due to the GB which is embedded in the polycrystalline thin-foil. The methods appear to be useful as well for intensive studies about interface magnetism in a variety of systems.

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