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Indentation behavio...
Indentation behaviour of superelastic hard carbon
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- Chernogorova, Olga P. (författare)
- Baikov Institute of Metallurgy and Materials Science RAS, Moscow
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- Drozdova, Ekaterina I. (författare)
- Baikov Institute of Metallurgy and Materials Science RAS, Moscow
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- Ushakova, Iraida N. (författare)
- Baikov Institute of Metallurgy and Materials Science RAS, Moscow
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- Bulychev, S.I. (författare)
- Moscow State Industrial University, Moscow
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- Ekimov, E.A. (författare)
- Vereshchagin Institute for High Pressure Physics HPPI RAS, Troitsk, Moscow
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- Benavides, Vicente (författare)
- Luleå tekniska universitet,Materialvetenskap
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- Soldatov, Alexander (författare)
- Luleå tekniska universitet,Materialvetenskap
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(creator_code:org_t)
- 2016-09-26
- 2016
- Engelska.
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Ingår i: Philosophical Magazine. - : Informa UK Limited. - 1478-6435 .- 1478-6443. ; 96:32-34, s. 3451-3460
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Superelastic hard carbon particles widely varying in structure andproperties have been studied by instrumented microindentationtechnique. The carbon particles up to 200 μm in size were producedby fullerene collapse upon high-pressure high-temperature treatmentof metal–fullerene powder mixture with simultaneous sintering ofmetal matrix composite materials (CM) reinforced by the particles.The structure and properties of the carbon particles were controlledby changing synthesis parameters and the state (composition andstructure) of the parent fullerite crystals. The specific features of theinstrumented indentation behaviour of the particles were studied asa function of their hardness. Mechanical properties of the particlestested at loads of up to 1970 mN exhibit an indentation size effect,which becomes more pronounced with increasing hardness of thecarbon particles. Upon holding at a constant load, the fullerenederivedcarbon particles undergo unrecoverable deformation, and theindentation creep CIT increases with increasing particle hardness. Anincrease in hardness of the reinforcing carbon particles substantiallyimproves the wear resistance of the CM and decreases their frictioncoefficient.
Ämnesord
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
Nyckelord
- Experimentell fysik
- Experimental physics
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