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High-temperature thermal barrier-coated Sylramic-iBN/pyrolytic carbon/chemical vapor infiltration silicon carbide ceramic matrix composite behavior in a combustion environment
- Source :
- Journal of Composite Materials. 52:1203-1213
- Publication Year :
- 2017
- Publisher :
- SAGE Publications, 2017.
-
Abstract
- An environmental barrier-coated Sylramic-iBN/pyrolytic carbon/chemical vapor infiltration silicon carbide ceramic matrix composite was characterized in a harsh combustion environment under two conditions; (i) with a coating surface temperature of 1480℃, and (ii) with a combustion flame distance of 120 mm (constant flux). Three coating systems were evaluated; Coating “A” (ytterbium silicate using hafnium–silicate bond), Coating “B” (ytterbium silicate using alumina bond), and Coating “C” (ytterbium–silica compounds using alumina bond). All three coatings survived with essentially no mass loss up to 25 h when tested at 1480℃. At a flame distance of 120 mm coatings “A” and “B” experienced extensive degradation and strength loss while coating “C” had practically no degradation in retained strength. Coating “C” outperformed the other two coatings exposed to the harsh combustion environment. It performed best in terms of material loss, thermal barrier capability, and residual tensile strength.
- Subjects :
- 010302 applied physics
Materials science
Mechanical Engineering
02 engineering and technology
021001 nanoscience & nanotechnology
Combustion
Ceramic matrix composite
01 natural sciences
Thermal barrier coating
chemistry.chemical_compound
chemistry
Mechanics of Materials
Chemical vapor infiltration
0103 physical sciences
Materials Chemistry
Ceramics and Composites
Silicon carbide
Pyrolytic carbon
Composite material
0210 nano-technology
Subjects
Details
- ISSN :
- 1530793X and 00219983
- Volume :
- 52
- Database :
- OpenAIRE
- Journal :
- Journal of Composite Materials
- Accession number :
- edsair.doi...........0d6115715902204711b7b72fdab89910