Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Radim Ctvrtlik"'
Autor:
Matus Zelny, Stepan Kment, Radim Ctvrtlik, Sarka Pausova, Hana Kmentova, Jan Tomastik, Zdenek Hubicka, Yalavarthi Rambabu, Josef Krysa, Alberto Naldoni, Patrik Schmuki, Radek Zboril
Publikováno v:
Catalysts, Vol 8, Iss 1, p 25 (2018)
Transfer of semiconductor thin films on transparent and or flexible substrates is a highly desirable process to enable photonic, catalytic, and sensing technologies. A promising approach to fabricate nanostructured TiO2 films on transparent substrate
Externí odkaz:
https://doaj.org/article/112d5f6f61cb47d8a6cdb3b77d461da9
Publikováno v:
Acta Polytechnica CTU Proceedings, Vol 27, Iss 0, Pp 121-125 (2020)
Scratch test is regularly used for assessment of cohesive and adhesive strength of thin films and coatings. By default, its evaluation is based on analysis of depth-load-time record and microscopic observation of residual scratch groove. The visual a
Publikováno v:
Acta Polytechnica CTU Proceedings, Vol 27, Iss 0, Pp 126-130 (2020)
Acoustic Emissions (AE) monitoring has been proved as an effective non-destructive technique at the macro scale. Nevertheless, it may also be employed at nano/micro scale during nanomechanical and nanotribological testing. Local mechanical properties
Publikováno v:
Acta Polytechnica CTU Proceedings, Vol 27, Iss 0, Pp 57-61 (2020)
Knowledge of mechanical properties of thin films is essential for most of their applications. However, their determination can be problematic for very thin films. LAW (Laser-induced acoustic waves) is a combined acousto-optic method capable of measur
Publikováno v:
Acta Polytechnica CTU Proceedings, Vol 27, Iss 0, Pp 145-148 (2020)
Butt welding of commercially pure titanium Grade 1 and Ti6Al4V alloy sheets using a pulsed Nd:YAG laser KLS 246 - 102 LASAG were carried out to determine optimal values of pulse energy and pulse length to create completely penetrated weld. Surface pe
Autor:
Radim Ctvrtlik, Jaromír Kopeček, Jan Tomastik, Jana Cibulková, Lukáš Vaclavek, Sneha Samal, Petr Šittner
Publikováno v:
Coatings, Vol 11, Iss 1246, p 1246 (2021)
Coatings
Volume 11
Issue 10
Coatings
Volume 11
Issue 10
The tribological behaviors of NiTi alloy produced by the spark plasma sintering (SPS) method before and after annealing were investigated at various loading conditions via indentation, scratch, and wear tests. Indentation tests were performed by a py
Autor:
Jaromír Kopeček, Zdenek Remes, Andrew Taylor, M. Vronka, Radim Ctvrtlik, Ladislav Klimša, Vincent Mortet, Jan Tomastik
Publikováno v:
Journal of Alloys and Compounds. 800:327-333
Comparative studies (nanoindentation and micro-scratch tests) of the mechanical properties of composite diamond/silicon carbide and diamond layers deposited by a microwave plasma enhanced chemical vapour deposition system with linear antennas, show t
Autor:
Jan Tomastik, Lukáš Vaclavek, Alberto Sanchez Martin, Ben D. Beake, Michal Hanak, Petr Abrham, Adrian J. Harris, Radim Ctvrtlik
Publikováno v:
JOM. 71:3358-3367
In many cases, the load–depth–time record in a nanomechanical or nanotribological test does not provide sufficient information, and subsequent microscopic imaging does not directly provide information on the dynamics of the process being studied.
Publikováno v:
Scientific Reports
Scientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
Scientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
The phase velocity dispersion of the surface acoustic waves on a basal plane of Si(100) has been calculated in the whole range of the azimuthal angle of propagation. We present a detailed description of the calculations. These calculations are compar
Autor:
Jan Tomastik, Jiří Šedý, David Marinčák, Ondřej Vencálek, Kamila Fačevicová, Radovan Žižka, Radim Ctvrtlik
Publikováno v:
Applied Sciences, Vol 11, Iss 1727, p 1727 (2021)
Applied Sciences; Volume 11; Issue 4; Pages: 1727
Applied Sciences; Volume 11; Issue 4; Pages: 1727
Setting of mineral trioxide aggregate (MTA) is affected by various factors. The purpose of this in vitro study was to evaluate the influence of root canal wall thickness on mechanical properties of MTA along the whole apical plug. Bovine bone mold tu