<abstract xmlns="http://www.w3.org/1999/xhtml">The ceramic coatings based on mixture of Al2O3 and TiO2 have better properties in comparison to the pure alumina ones. Among many techniques, plasma spraying is very useful method of ceramic coatings manufacturing. In this paper, the results of microscopic, mechanical and tribological properties investigations of Al2O3 + 13 wt% TiO2 coatings manufactured by atmospheric plasma spraying are presented. The cylinder substrates made from stainless steel (X5CrNi18-10) had a diameter equal to 25 mm and thickness equal to 2 mm. The plasma spray experimental parameters included three variables: (i) type of injection system (external or internal), (ii) size of corundum particles for sandblasting and (iii) torch linear speed. The results confirm, that type of injection system is a dominant parameter. Internal injection results in better degree of particles melting, what influences on wear resistance performance, as well as higher values of bond strength.</abstract>

The ceramic coatings based on mixture of Al2O3 and TiO2 have better properties in comparison to the pure alumina ones. Among many techniques, plasma spraying is very useful method of ceramic coatings manufacturing. In this paper, the results of microscopic, mechanical and tribological properties investigations of Al2O3 + 13 wt% TiO2 coatings manufactured by atmospheric plasma spraying are presented. The cylinder substrates made from stainless steel (X5CrNi18-10) had a diameter equal to 25 mm and thickness equal to 2 mm. The plasma spray experimental parameters included three variables: (i) type of injection system (external or internal), (ii) size of corundum particles for sandblasting and (iii) torch linear speed. The results confirm, that type of injection system is a dominant parameter. Internal injection results in better degree of particles melting, what influences on wear resistance performance, as well as higher values of bond strength.

Atmospheric Plasma Spraying of Al2O3 + 13% TiO2 Coatings Using External and Internal Injection System

Wrocław University of Science and Technology

Advances in Materials Science

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Atmospheric Plasma Spraying of AlO + 13% TiO Coatings Using External and Internal Injection System

The ceramic coatings based on mixture of Al2O3 and TiO2 have better properties in comparison to the pure alumina ones. Among many techniques, plasma spraying...

Atmospheric Plasma Spraying of Al₂O₃ + 13% TiO₂ Coatings Using External and Internal Injection System

Published Online: Dec 31, 2019

Page range: 5 - 17

DOI: https://doi.org/10.2478/adms-2019-0018

Keywords
atmospheric plasma spraying, AlO + TiO coating, microstructure, mechanical properties, injection system

© 2019 L. Łatka et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Atmospheric Plasma Spraying of Al2O3 + 13% TiO2 Coatings Using External and Internal Injection System

Published Online: Dec 31, 2019

Page range: 5 - 17

DOI: https://doi.org/10.2478/adms-2019-0018

Keywordsatmospheric plasma spraying, AlO + TiO coating, microstructure, mechanical properties, injection system

© 2019 L. Łatka et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Atmospheric Plasma Spraying of Al₂O₃ + 13% TiO₂ Coatings Using External and Internal Injection System

Keywords
atmospheric plasma spraying, AlO + TiO coating, microstructure, mechanical properties, injection system