Análisis de la adhesión de recubrimientos del sistema Y2O3-Al2O3-SiO2 sobre sustratos de interés para la industria aeroespacial

Translated title of the contribution: Adhesion of Y2O3-Al2O3-SiO2 coatings to typical aerospace substrates

Cinta Marraco-Borderas, Andrés Nistal, Eugenio García, Maria Antonia Sainz, Federico Martín De La Escalera, Yasser Essa, Pilar Miranzo*

*Corresponding author for this work

Research output: Contribution to journalArticle

4 Citations (Scopus)
198 Downloads (Pure)

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.

Original languageSpanish
Pages (from-to)127-135
Number of pages9
JournalBoletin de la Sociedad Espanola de Ceramica y Vidrio
Volume55
Issue number4
Early online date18 Feb 2016
DOIs
Publication statusPublished - 01 Jul 2016
Externally publishedYes

Keywords

  • Composites
  • Flame spraying
  • Glass coatings
  • Scratch tests
  • Thermal shieldsa

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Industrial and Manufacturing Engineering

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