Abstract
High performance lightweight materials are required in the aerospace industry. Silicon carbide, carbon fiber reinforced carbon and slicon carbide composites comply with those requirements but they suffer from oxidation at the high temperature of the service conditions. One of the more effective approaches to prevent this problem is the use of protecting ceramic coatings, where the good adhesion between substrates and coatings are paramount to guarantee the optimal protection performance. In the present work, the adhesion between those substrates and glass coatings of the Y2O3-Al2O3-SiO2 system processed by oxyacetylene flame spraying is analyzed. Increasing load scratch tests are employed for determining the failure type, maximum load and their relation with the elastic and mechanical properties of the coatings. The results points to the good adhesion of the coatings to silicon carbide and carbon fibre reinforced silicon carbide while the carbon fiber reinforced carbon is not a suitable material to be coated.
Translated title of the contribution | Adhesion of Y2O3-Al2O3-SiO2 coatings to typical aerospace substrates |
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Original language | Spanish |
Pages (from-to) | 127-135 |
Number of pages | 9 |
Journal | Boletin de la Sociedad Espanola de Ceramica y Vidrio |
Volume | 55 |
Issue number | 4 |
Early online date | 18 Feb 2016 |
DOIs | |
Publication status | Published - 01 Jul 2016 |
Externally published | Yes |
Keywords
- Composites
- Flame spraying
- Glass coatings
- Scratch tests
- Thermal shieldsa
ASJC Scopus subject areas
- Ceramics and Composites
- Mechanics of Materials
- Industrial and Manufacturing Engineering