EFFECT OF PARTICLE SHAPE AND SIZE ON THE COMPRESSIBILITY AND BULK PROPERTIES OF POWDERS IN POWDER METALLURGY

1,2 HLOSTA Jakub
Co-authors:
1,2 ŽUROVEC David 1 JEZERSKÁ Lucie 1,2 ZEGZULKA Jiří 1,2 NEČAS Jan
Institutions:
1 VSB - Technical University of Ostrava, ENET Centre, Laboratory of Bulk Materials, Ostrava, Czech Republic, EU, jakub.hlosta@vsb.cz
2 VSB - Technical University of Ostrava, Faculty of Mechanical Engineering, Institute of Transportation, Ostrava, Czech Republic, EU
Conference:
25th Anniversary International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 25th - 27th 2016
Proceedings:
Proceedings 25th Anniversary International Conference on Metallurgy and Materials
Pages:
1394-1399
ISBN:
978-80-87294-67-3
ISSN:
2694-9296
Published:
14th December 2016
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
101 views / 27 downloads
Abstract

Study of structural and mechanical properties of metal powders is necessary for improving in powder metallurgy. The procedural behavior of aluminum, copper and iron powders and their alloys is important for many industrial applications. This paper presentshow the shape and size of the particles influence compressibility and flow properties of metal powders.These properties play an important role in the storage, handling, dosing and compaction in powder metallurgy processes. For the samples of aluminum, copper, iron and their mixtures has been determined particle size distribution and shape of particles thus posing its mechanical properties. The biggest irregular iron particles exhibit very low compressibility about 2% at 15 kPa applied normal stress. Conversely the fines copper particles are the most compressible. All of the basic powders indicate low compressibility at low normal load but different mixtures show bigger compression immediately after load application.

Keywords: Metal powders, powder metallurgy, compressibility, morphology

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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