Please use this identifier to cite or link to this item: doi:10.22028/D291-30994
Title: Microstructural evolution during heating of CNT/Metal Matrix Composites processed by Severe Plastic Deformation
Author(s): Aristizabal, Katherine
Katzensteiner, Andreas
Bachmaier, Andrea
Mücklich, Frank
Suarez, Sebastian
Language: English
Title: Scientific Reports
Volume: 10
Issue: 1
Publisher/Platform: Springer Nature
Year of Publication: 2020
Free key words: Engineering
Materials science
DDC notations: 600 Technology
Publikation type: Journal Article
Abstract: Carbon nanotube reinforced nickel matrix composites (Ni/CNT) with different CNT compositions were fabricated by solid state processing and subjected to severe plastic deformation (SPD) by means of high pressure torsion (HPT). A thorough study on the microstructural changes during heating and on the thermal stability was performed using differential scanning calorimetry (DSC), high temperature X-ray diffraction (HT-XRD) and electron backscattered diffraction (EBSD). Furthermore, the formation and dissolution of the metastable nickel carbide Ni3C phase was evidenced by DSC and HT-XRD in composites, where sufficient carbon atoms are available, as a consequence of irreversible damage on the CNT introduced by HPT. Finally, it was shown that the composites exhibited an improved thermal stability with respect to nickel samples processed under the same conditions, with a final grain size dependent on the CNT volume fraction according to a VCNT-1/3 relationship and that lied within the ultrafine grained range.
DOI of the first publication: 10.1038/s41598-020-57946-3
Link to this record: urn:nbn:de:bsz:291--ds-309945
hdl:20.500.11880/29177
http://dx.doi.org/10.22028/D291-30994
ISSN: 2045-2322
Date of registration: 22-May-2020
Description of the related object: Supplementary Information
Related object: https://static-content.springer.com/esm/art%3A10.1038%2Fs41598-020-57946-3/MediaObjects/41598_2020_57946_MOESM1_ESM.pdf
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Materialwissenschaft und Werkstofftechnik
Professorship: NT - Prof. Dr. Frank Mücklich
Collections:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

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