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Journal of the Japan Society of Precision Engineering
The worked layers of polished ferrites were estimated by electron-diffraction method and the principal mechanism of magnetic characteristic changes was clarified. Effective non-magnetic layer of abraded ferrites can be estimated by measuring reluctance of a toroidal core with worked layers perpendicular to magnetic path : the depth of the layer was obtained bydoi:10.2493/jjspe1933.43.1012 fatcat:vx3acyvpqvd6re6yvtiulibxkq