Development of new composite electrotechnical materials with advanced characteristics for application in novel equipments
Abstract
An urgent task for the electrical industry is to develop new soft magnetic materials, in particular composites. The greatest interest present composites in which filling components have metal-dielectric-metal (MDM) interaction. Recent few years many research centres are carry out intensive developments of soft magnetic composites (SMC) based on use of soft magnetic particles, usually based on iron, with an electrically insulating coating on each particle. The carried out preliminary researches of a composite magnetic material based on iron ASC 100.29 and Atomet 1001HP powders, surface of which is capsulated by ferrite, have shown perspectives of their application in engineering. Unique specific parameters of a softmagnetic composite material – a magnetic induction of saturation 2.1 Tesla, work in a frequency range up to 100 kHz at Curie temperature from above 800°C allow to use it in high speed valve and valve-jet electromachines and as chokes and high-frequency transformers.
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