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Structure and properties of superelastic hard carbon phase created in fullerene-metal composites by high temperature-high pressure treatment
Baikov Institute of Metallurgy and Materials Science (IMET), Russian Academy of Sciences.
Baikov Institute of Metallurgy and Materials Science (IMET), Russian Academy of Sciences.
Baikov Institute of Metallurgy and Materials Science (IMET), Russian Academy of Sciences.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0002-5145-1560
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2012 (English)In: Journal of Applied Physics, ISSN 0021-8979, E-ISSN 1089-7550, Vol. 111, no 11Article in journal (Refereed) Published
Abstract [en]

Treatment of a fullerene soot extract and metal (Co) powder mixture under pressure of 5 and 8 GPa at 1000 °C leads to the transformation of fullerites into superelastic hard phase (SHP) and to simultaneous sintering of the powder mixture to nonporous composite material reinforced by the SHP particles. The structure of the SHP particles reveals a topological relation to the initial fullerite crystal morphology. Upon indentation, the SHP particles demonstrate an elastic recovery of up to 96. The universal microhardness of the SHP particles HU=26 GPa, and their microhardness HV = 35 GPa. A high ratio between the microhardness and elastic modulus (HV/E = 0.19-0.21) of the SHP particles makes them perspective candidates for design of materials with superior wear resistance and tribological properties.

Place, publisher, year, edition, pages
2012. Vol. 111, no 11
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Experimental physics
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URN: urn:nbn:se:ltu:diva-28588DOI: 10.1063/1.4726155ISI: 000305401400002Scopus ID: 2-s2.0-84863316111Local ID: 26cba0f5-c630-42d1-8613-6e832869a94eOAI: oai:DiVA.org:ltu-28588DiVA, id: diva2:1001788
Conference
International Conference on the Study of Matter at Extreme Conditions : 27/03/2011 - 02/04/2011
Note

Validerad;2012;20120807 (ysko);Konferensartikel i tidskrift;Bibliografisk uppgift: Article number 112601

Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-07-10Bibliographically approved

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Soldatov, Alexander

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