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Cover Image, Volume 137, Issue 2
Publication year - 2020
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.48502
Subject(s) - cover (algebra) , electrical resistivity and conductivity , composite number , nonlinear system , magnetic flux , materials science , epoxy , condensed matter physics , composite material , electrical engineering , physics , mechanical engineering , magnetic field , engineering , quantum mechanics
This cover provided by Hidehito Matsuzaki, Takeo Sasaki and colleagues shows an SEM micrograph of Mn‐based ferrite magnetic particles having irregular shapes (Mn‐FM(i)). The epoxy resin films containing Mn‐FM(i) at 20% vol showed the highest nonlinear resistivity. Assessments of the magnetic characteristics of these materials demonstrated a relationship between magnetic flux density and nonlinear resistivity. The Mn‐FM(i) composite showed the highest flux density among the various specimens, indicating that magnetic flux density may affect nonlinear resistivity. The composite indicating high nonlinearity has many promising applications as functional composites for electrical stress grading, especially in generators, motors and switchgears. DOI: 10.1002/app.48229