Possibilities of hardness measurement of composite coating based on ptfe with al2o3 particles applied on aluminium substrate

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Possibilities of hardness measurement of composite coating based on ptfe with al2o3 particles applied on aluminium substrate

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Possibilities of hardness measurement of composite coating based on ptfe with al2o3 particles applied on aluminium substrate

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20506 - Coating and films

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Engineering for Rural Development, Proceedings

ISBN

—

ISSN

1691-5976

e-ISSN

1691-5976

Počet stran výsledku

7

Strana od-do

1029-1035

Název nakladatele

Latvia University of Agriculture Faculty of Engineering

Místo vydání

Jelgava

Místo konání akce

Jelgava, LATVIA

Datum konání akce

20. 5. 2020

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

—