Instytut Podstawowych Problemów Techniki
Polskiej Akademii Nauk


Melanie Clozel

National Centre for Nuclear Research (PL)

Ostatnie publikacje
1.  Nosewicz S., Bazarnik P., Clozel M., Kurpaska Ł., Jenczyk P., Jarząbek D., Chmielewski M., Romelczyk-Baishya B., Lewandowska M., Pakieła Z., Huang Y., Langdon T.G., A multiscale experimental analysis of mechanical properties and deformation behavior of sintered copper–silicon carbide composites enhanced by high-pressure torsion, ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING, ISSN: 1644-9665, DOI: 10.1007/s43452-021-00286-4, Vol.21, pp.131-1-19, 2021

Experiments were conducted to investigate, within the framework of a multiscale approach, the mechanical enhancement, deformation and damage behavior of copper–silicon carbide composites (Cu–SiC) fabricated by spark plasma sintering (SPS) and the combination of SPS with high-pressure torsion (HPT). The mechanical properties of the metal–matrix composites were determined at three different length scales corresponding to the macroscopic, micro- and nanoscale. Small punch testing was employed to evaluate the strength of composites at the macroscopic scale. Detailed analysis of microstructure evolution related to SPS and HPT, sample deformation and failure of fractured specimens was conducted using scanning and transmission electron microscopy. A microstructural study revealed changes in the damage behavior for samples processed by HPT and an explanation for this behavior was provided by mechanical testing performed at the micro- and nanoscale. The strength of copper samples and the metal–ceramic interface was determined by microtensile testing and the hardness of each composite component, corresponding to the metal matrix, metal–ceramic interface, and ceramic reinforcement, was measured using nano-indentation. The results confirm the advantageous effect of large plastic deformation on the mechanical properties of Cu–SiC composites and demonstrate the impact on these separate components on the deformation and damage type.

Słowa kluczowe:
copper–silicon carbide composite, high-pressure torsion, metal–matrix composites, multiscale analysis, nano-indentation, small punch test

Afiliacje autorów:
Nosewicz S. - IPPT PAN
Bazarnik P. - Politechnika Warszawska (PL)
Clozel M. - National Centre for Nuclear Research (PL)
Kurpaska Ł. - National Centre for Nuclear Research (PL)
Jenczyk P. - IPPT PAN
Jarząbek D. - IPPT PAN
Chmielewski M. - Institute of Electronic Materials Technology (PL)
Romelczyk-Baishya B. - Politechnika Warszawska (PL)
Lewandowska M. - inna afiliacja
Pakieła Z. - Politechnika Warszawska (PL)
Huang Y. - Bournemouth University (GB)
Langdon T.G. - University of Southampton (GB)

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