Preparation and characterization of Cu-5%Ni-xC (x = 2 %, 4 %, 6 %, 8 %) composite materials

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dc.contributor.authorTianjing Li
dc.contributor.authorCongxiang Lu
dc.contributor.authorPengfei Zhou
dc.contributor.authorYao Wang
dc.contributor.authorQingle Shi
dc.contributor.authorXinjiang Zhang
dc.date.accessioned2023-10-04T10:38:54Z
dc.date.available2023-10-04T10:38:54Z
dc.date.issued2017
dc.descriptionPreparation and characterization of Cu-5%Ni-xC (x = 2 %, 4 %, 6 %, 8 %) composite materials / L. Tianjing, L. Congxiang, Z. Pengfei, W. Yao, S. Qingle, Z. Xinjiang // Shipbuilding & Marine Infrastructure. – 2017. – № 1 (7). – P. 20–24.
dc.description.abstract1Cu-5% Ni-xC (x = 2 %, 4 %, 6 %, 8 % wt.) composite powders were prepared by mechanical alloying (MA). The effect of the C content and milling time on the microstructure and phase structure of the composite powders was studied. Then the composite powders were pressed into a tablet and Cu-Ni-C composite materials were obtained after the tablet was sintered at 800 °C. XRD analysis shows that only the Cu diffraction peak was observed after ball milling. The Cu diffraction peak gradually shifted to the low angle with the increase of the C content, which indicated that the Cu-Ni-C solid solution had been formed. As the C content increased (8 %), a small amount of carbon was observed at the grain boundary and sub-grain boundary and separated out from the solid solution. As shown in the SEM images, when the C content is constant, the morphology of composite powders changes from larger flattened particles into smaller granular particles with the increase of milling time. Carbon particles are evenly dispersed in the composite powder. After cold welding and fracture reach dynamic balance in the milling process, the composite powders are agglomerated to form large particles at further ball milling. When the milling time is constant, the average particle size of the composite powder decreases with the increase of carbon. Then the change in particle size is significantly slowed down as the C content is more than 6 %. The metallographic images of Cu-Ni-C composites have exhibited that the microstructure of the Cu-Ni-C composite materials becomes more uniform with the C content increase.
dc.identifier.issn2409-3858 (Print)
dc.identifier.issn2519-1845 (Online)
dc.identifier.urihttps://eir.nuos.edu.ua/handle/123456789/7084
dc.language.isoen
dc.titlePreparation and characterization of Cu-5%Ni-xC (x = 2 %, 4 %, 6 %, 8 %) composite materials
dc.typeArticle

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№1(7) 2017