naa a22 4500 510822886 CHVBK 20180411083542.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s12541-013-0160-5 doi (NATIONALLICENCE)springer-10.1007/s12541-013-0160-5 Investigation of electrophysical and mechanical characteristics of porous copper-carbon composite materials prepared by spark plasma sintering [Elektronische Daten] [Bunyod Allabergenov, Sungjin Kim] Copper-carbon composites are attractive materials for electrical applications, such as contact strips for pantographs and collector shoes in electric railways and brushes for motor technology. Because the copper-carbon composites combine the positive characteristics of both components, i.e. thermal and electrical conductivity from the copper and low thermal expansion coefficient and resistivity properties from the carbon. In this report the porous copper-carbon composite material with optimal ratio was prepared and electrophysical, mechanical characteristics were investigated. The specimens were sintered by spark plasma sintering technique which allowed preparing the specimens for short time. The copper-carbon composites samples were prepared with using additional sodium oleate and sodium chloride admixtures for making porous structure. The sintering pressure and temperature are one of the important parameter which influences the properties of the specimens. After sintering for making porous structure the prepared composite samples were treated in boiled deionized water where remained organic materials dissolved in liquid solution. It was shown that the physical, mechanical, electrical properties and porosity degree are directly depends from the initial size of the powders, and material composition. In particular, at different pressure, and applying the optimal copper-carbon ratio (Cu-C) was fabricated porous samples from copper-derived composites where used carbon source and electrolytic grade copper powder. The structural and composition parameters and the obtained composite samples fabricated by spark plasma sintering technique have been investigated by micro-hardness tester, hall system, density tester, optical microscope, XRD and FE-SEM Korean Society for Precision Engineering and Springer-Verlag Berlin Heidelberg, 2013 Copper-carbon & Graphite composites nationallicence Spark plasma sintering nationallicence Ball milling nationallicence Cu-carbon nationallicence XRD : X-ray Diffraction nationallicence Cu-C : Copper-Carbon nationallicence SPS : Spark Plasma Sintering nationallicence Allabergenov Bunyod School of Advanced Materials and System Engineering, Kumoh National Institute of Technology, 1 Yangho-dong, 730-701, Gumi, Korea aut Kim Sungjin School of Advanced Materials and System Engineering, Kumoh National Institute of Technology, 1 Yangho-dong, 730-701, Gumi, Korea aut International Journal of Precision Engineering and Manufacturing Springer Berlin Heidelberg 14/7(2013-07-01), 1177-1183 2234-7593 14:7<1177 2013 14 12541 https://doi.org/10.1007/s12541-013-0160-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12541-013-0160-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Allabergenov Bunyod School of Advanced Materials and System Engineering, Kumoh National Institute of Technology, 1 Yangho-dong, 730-701, Gumi, Korea aut NATIONALLICENCE 700 1- Kim Sungjin School of Advanced Materials and System Engineering, Kumoh National Institute of Technology, 1 Yangho-dong, 730-701, Gumi, Korea aut NATIONALLICENCE 773 0- International Journal of Precision Engineering and Manufacturing Springer Berlin Heidelberg 14/7(2013-07-01), 1177-1183 2234-7593 14:7<1177 2013 14 12541 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer