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The Effect of a Taper Angle on Micro-Compression Testing of Mo-B-C Coatings.
Materials (Basel). 2020 Jul 08; 13(14)M

Abstract

This research was devoted to studying the influence of the taper angle on the micro-compression of micro-pillars fabricated from near-amorphous and nanocrystalline Mo-B-C coatings. A series of micro-pillars with a taper angle between 4-14° was fabricated by focused ion beam technique. The deformation mechanism was found to be dependent on the taper and, also, on the crystallinity of the coating. In order to obtain correct values of yield strength and Young's modulus, three empirical models of stress correction were experimentally tested, and the results were compared with nanoindentation measurements. It was shown that the average stress correction model provided comparable results with nanoindentation for the yield strength for taper angles up to ~10°. On the other hand, the average radius or area model gave the most precise results for Young's modulus if the taper angle was <10°.

Authors+Show Affiliations

Department of Physical Electronics, Faculty of Science, Masaryk University, Kotlářská 2, CZ-61137 Brno, Czech Republic.Department of Physical Electronics, Faculty of Science, Masaryk University, Kotlářská 2, CZ-61137 Brno, Czech Republic.Tescan Orsay Holding, a.s., Libušina třída 21, CZ-62300 Brno, Czech Republic.Tescan Orsay Holding, a.s., Libušina třída 21, CZ-62300 Brno, Czech Republic.Department of Physical Electronics, Faculty of Science, Masaryk University, Kotlářská 2, CZ-61137 Brno, Czech Republic.Department of Physical Electronics, Faculty of Science, Masaryk University, Kotlářská 2, CZ-61137 Brno, Czech Republic.Department of Physical Electronics, Faculty of Science, Masaryk University, Kotlářská 2, CZ-61137 Brno, Czech Republic.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32650471

Citation

Zábranský, Lukáš, et al. "The Effect of a Taper Angle On Micro-Compression Testing of Mo-B-C Coatings." Materials (Basel, Switzerland), vol. 13, no. 14, 2020.
Zábranský L, Bernátová K, Dluhoš J, et al. The Effect of a Taper Angle on Micro-Compression Testing of Mo-B-C Coatings. Materials (Basel). 2020;13(14).
Zábranský, L., Bernátová, K., Dluhoš, J., Váňa, R., Souček, P., Vašina, P., & Buršíková, V. (2020). The Effect of a Taper Angle on Micro-Compression Testing of Mo-B-C Coatings. Materials (Basel, Switzerland), 13(14). https://doi.org/10.3390/ma13143054
Zábranský L, et al. The Effect of a Taper Angle On Micro-Compression Testing of Mo-B-C Coatings. Materials (Basel). 2020 Jul 8;13(14) PubMed PMID: 32650471.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The Effect of a Taper Angle on Micro-Compression Testing of Mo-B-C Coatings. AU - Zábranský,Lukáš, AU - Bernátová,Katarína, AU - Dluhoš,Jiří, AU - Váňa,Rostislav, AU - Souček,Pavel, AU - Vašina,Petr, AU - Buršíková,Vilma, Y1 - 2020/07/08/ PY - 2020/06/02/received PY - 2020/07/01/revised PY - 2020/07/03/accepted PY - 2020/7/12/entrez PY - 2020/7/12/pubmed PY - 2020/7/12/medline KW - Mo-B-C coatings KW - micro-compression KW - micro-pillars KW - stress-strain KW - taper angle JF - Materials (Basel, Switzerland) JO - Materials (Basel) VL - 13 IS - 14 N2 - This research was devoted to studying the influence of the taper angle on the micro-compression of micro-pillars fabricated from near-amorphous and nanocrystalline Mo-B-C coatings. A series of micro-pillars with a taper angle between 4-14° was fabricated by focused ion beam technique. The deformation mechanism was found to be dependent on the taper and, also, on the crystallinity of the coating. In order to obtain correct values of yield strength and Young's modulus, three empirical models of stress correction were experimentally tested, and the results were compared with nanoindentation measurements. It was shown that the average stress correction model provided comparable results with nanoindentation for the yield strength for taper angles up to ~10°. On the other hand, the average radius or area model gave the most precise results for Young's modulus if the taper angle was <10°. SN - 1996-1944 UR - https://www.unboundmedicine.com/medline/citation/32650471/The_Effect_of_a_Taper_Angle_on_Micro-Compression_Testing_of_Mo-B-C_Coatings L2 - https://www.mdpi.com/resolver?pii=ma13143054 DB - PRIME DP - Unbound Medicine ER -
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