Nanomechanical testing of an a-C:N nanolayer prepared by ion beam assisted deposition on Ti.sub.6./sub.Al.sub.4./sub.V alloy

0486538 - FZÚ 2018 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Vlčák, P. - Šepitka, J. - Horaždovský, T. - Jirka, Ivan - Gregora, Ivan - Němec, M.
Nanomechanical testing of an a-C:N nanolayer prepared by ion beam assisted deposition on Ti₆Al₄V alloy.
NANOCON 2015: 7th International Conference on Nanomaterials - Research and Application, Conference Proceedings. Ostrava: TANGER, spol. s r.o., 2015, s. 68-72. ISBN 978-80-87294-63-5.
[NANOCON 2015. International Conference /7./. Brno (CZ), 14.10.2015-16.10.2015]
Institucionální podpora: RVO:68378271 ; RVO:61388955
Klíčová slova: carbon-based materials * hardness * ion beam assisted deposition * a-C:N nanolayer
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.); Physical chemistry (UFCH-W)

We applied ion beam assisted deposition for preparing a-C:N nanolayers on Ti6Al4V alloy. A Hysitron TI 950 TriboIndenter (TM) nanomechanical test instrument was used to assess the depth profiles of the mechanical properties on modified titanium substrates. Two methods were employed : a) quasistatic partial unload, and b) dynamic Continuous Measurement of X (CMX). The average nanoindentation hardness increased from HIT similar to 5GPa for a reference sample to HIT similar to 8.6 GPa for a sample coated by an a-C nanolayer, and to HIT similar to 11.5 GPa for a sample coated by an a-C:N nanolayer. The average storage modulus of the sample coated by a-C:N increased from E' similar to 130 GPa (reference sample) to E' similar to 155 GPa. The storage modulus of the sample coated by the a-C nanolayer was less than the storage modulus of the titanium substrate.
Trvalý link: http://hdl.handle.net/11104/0283317