Czasopismo | INŻYNIERIA MATERIAŁOWA | Rocznik 2014 - zeszyt 2

The influence of resin content on the mechanical and soft magnetic properties of composite prepared on the basis of the bulk amorphous materials

nr katalogowy: 84276

Currently countless amounts of electrical and electronics equipment is produced annually, inside of which the latest generation transformer systems are located. In order to operate in portable devices, such as laptops or mobile phones is necessary to use components that during his work does not use large amounts of electricity. Therefore, the engineers working in the modern laboratories are looking for cheap, readily formable and energyefficient transformers. Such a product may be obtained by combining particles of amorphous material having good soft magnetic properties with various types of non-metallic tackifiers [1, 2]. Note, however, that too much of a non-magnetic tackifiers can affect the parameters deterioration of soft magnetic materials [3÷5]. The paper presents results of studies conducted for composites made of amorphous particles combined epoxy resin in an amount by weight of 2, 3 and 4%. EXPERIMENTAL PROCEDURE The material for study was prepared from plates of the Fe61Co10Y8Mo1B20 bulk amorphous alloy. The plates was crushed in a mortar and combined of the epoxy resin (Fig. 1a). The plates were crushed, and then fractionated using a sieve and platform shaker. The fraction used in the study is 100÷200 microns (Fig. 1b). The obtained particles are combined with the Epidian 100 resin in a hydraulic press at a pressure of 5 MPa for 30 s (Fig. 2). Then, the resulting composites were subjected to curing at 423 K for one hour. Thus prepared samples had the shape of rollers with a diameter of 5 mm and a height of about 3 mm. Structural measurements, for investigated materials, were performed using a BRUKER D8 ADVANCE X-ray diffractometer, that was equipped with copper radiation source. Measurements were carried out in the 2 angle range from 30 to 120 with measuring step of 0.5 and exposure time of 5 s. The structure of the samples was also examined by the use of a Zeiss Supra 25 microscope compa[...]

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