Number of the records: 1
High frequency acoustic emission monitoring in nano-impact of alumina and partially stabilised zirconia
- 1.
SYSNO ASEP 0561956 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title High frequency acoustic emission monitoring in nano-impact of alumina and partially stabilised zirconia Author(s) Beake, B.D. (GB)
Čtvrtlík, Radim (FZU-D) RID, ORCID
Harris, A.J. (GB)
Martin, A.S. (GB)
Václavek, L. (CZ)
Maňák, Jan (FZU-D) ORCID
Ranc, V. (CZ)Number of authors 7 Article number 139159 Source Title Materials Science and Engineering A Structural Materials Properties Microstructure and Processing. - : Elsevier - ISSN 0921-5093
Roč. 780, April (2020)Number of pages 11 s. Language eng - English Country CH - Switzerland Keywords micromechanics ; electron microscopy ; fracture mechanics/fracture behavior/fatigue ; ceramics Subject RIV JH - Ceramics, Fire-Resistant Materials and Glass OECD category Ceramics R&D Projects LM2015087 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 UT WOS 000524357800008 EID SCOPUS 85081126242 DOI 10.1016/j.msea.2020.139159 Annotation High frequency acoustic emission monitoring is proving a useful technique in improving the understanding of deformation processes occurring in nano- and micro-scale mechanical contacts. In this study AE monitoring has been used to investigate the fracture of alumina and MgO-partially stabilised zirconia (PSZ) at high strain rate in repetitive nano-impact tests with cube-corner and 5 μm radius spherical diamond indenters. Focussed ion beam milling of impact craters revealed sub-surface intergranular cracking on alumina and sub-surface transgranular cracking on PSZ. The evolution of AE through the test was strongly dependent on the geometry of the indenter used to create the impacts. AE energy was generally much higher when impacts cause rapid increases in penetration depth, with single high energy hits observed on abrupt depth bursts in tests with the cube corner indenter. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2023 Electronic address https://doi.org/10.1016/j.msea.2020.139159
Number of the records: 1