Publikacje

Abstract:

The paper presents the results of research into the possibilities of making and using composite copper - zeolite obtained by the powder metallurgy technology. The quality of the connection of zeolite and its matrix has also been estimated and the effect of the particles of the zeolite on the properties of sinter.
Before the production of sinters the study of zeolite’s morphology and chemical composition had been performed. Zeolite is obtained from tuff rock called zeolite which is extracted in a quarry in Kucin (VSK PRO-ZEO s.r.o. Slovakia).
Rock research was provided in the form of milled powder fraction 0,0-0,2 mm. Next, a surface analysis of SEM and EDS X-ray phase analysis by XRD were carried out. Before sintering process applying a one-pressing hydraulic press with a compaction pressure 400 MPa. The sintering process were carried out in a laboratory tube furnace at 950 °C under an atmosphere of dissociated ammonia. The sintering time was 60 minutes. The resulting agglomerates were subjected to the following tests: measurement of density, hardness, porosity. Observations of the microstructure and chemical composition analysis of EDS metallographic sinters were also carried out using a scanning electron microscope. The zeolite was introduced into the copper matrix in an amount of 5, 10, 20 % by weight. Introduction of particles into the matrix of the zeolite as a strengthening phase has increased the porosity and hardness of the agglomerates will decrease in density.

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The effect of the addition of zeolite on the properties of a sintered copper-matrix composite.