Possibilities of hardness measurement of composite coating based on ptfe with al2o3 particles applied on aluminium substrate
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13420%2F20%3A43895980" target="_blank" >RIV/44555601:13420/20:43895980 - isvavai.cz</a>
Result on the web
<a href="http://www.tf.llu.lv/conference/proceedings2020/Papers/TF242.pdf" target="_blank" >http://www.tf.llu.lv/conference/proceedings2020/Papers/TF242.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.22616/ERDev.2020.19.TF242" target="_blank" >10.22616/ERDev.2020.19.TF242</a>
Alternative languages
Result language
angličtina
Original language name
Possibilities of hardness measurement of composite coating based on ptfe with al2o3 particles applied on aluminium substrate
Original language description
The importance of surface treatment is emphasized by new knowledge from the preparation of coatings and thin films. These coatings can influence basic properties, such as corrosion resistance, surface friction characteristics, hardness and many others. This paper pays attention to the evaluation of the hardness of the polytetrafluoroethylene-based composite coating with the addition of micro and nano aluminium oxide particles at various concentrations. The experiment describes the testing of composite coatings PTFE + Al2O3 at concentrations of 0.1 %.l-1, 0.01 %.l-1, 0.001 %.l-1 by various methods of hardness measurement and their evaluation by SEM. The hardness of the coating thus prepared was influenced by its thickness. For measurements the nanoindentation test and Vickers hardness test were used. The measurement results were also influenced by the chosen coating technology, which influenced the uniformity of the distribution of particles in the coating. To verify the uniformity of the particles in the evaluation of individual samples the SEM analysis was used. The distribution of particles in the coating has the effect of influencing the properties of the coating, not only the hardness, but also, for example, the abrasion resistance, roughness etc. The most suitable method for evaluating the hardness of a tested coating is the nanoindentation test, which has proved to be the most suitable method. Values are influenced by the injection point, i.e. whether there was an Al2O3 cluster or only a Teflon coating in the area. We confirmed the assumption of uneven distribution of particles and their aggregation using electron microscope documentation. The experimentally verified results are discussed at the end of this paper and there are given individual conclusions and recommendations.
Czech name
—
Czech description
—
Classification
Type
D - Article in proceedings
CEP classification
—
OECD FORD branch
20506 - Coating and films
Result continuities
Project
—
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Engineering for Rural Development, Proceedings
ISBN
—
ISSN
1691-5976
e-ISSN
1691-5976
Number of pages
7
Pages from-to
1029-1035
Publisher name
Latvia University of Agriculture Faculty of Engineering
Place of publication
Jelgava
Event location
Jelgava, LATVIA
Event date
May 20, 2020
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
—