Multilayer ultra-high-temperature ceramic coatings
AssigneeSandia Corporation
InventorsRonald E. Loehman, Erica L. Corral
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Abstract
A coated carbon-carbon composite material with multiple ceramic layers to provide oxidation protection from ultra-high-temperatures, where if the carbon-carbon composite material is uninhibited with B4C particles, then the first layer on the composite material is selected from ZrB2 and HfB2, onto which is coated a layer of SiC coated and if the carbon-carbon composite material is inhibited with B4C particles, then protection can be achieved with a layer of SiC and a layer of either ZrB2 and HfB2 in any order.
Claims12
A coated carbon-carbon composite material, comprising:
- an inhibited carbon-carbon material comprising B4C particles;
- a first continuous layer comprising at least one material chosen from ZrB2 and HfB2 coated onto at least a portion of a surface of said carbon-carbon material;
- and
- a second continuous layer comprising SiC coated onto said first continuous layer.
A coated carbon-carbon composite material, comprising:
- an inhibited carbon-carbon material comprising B4C particles;
- a first continuous layer comprising SiC coated onto at least a portion of a surface of said carbon-carbon material;
- and
- a second continuous layer comprising at least one material chosen from ZrB2 and HfB2 coated onto said first continuous layer.
Dependencies are inferred from the claim text.