Ceramic infiltration of aircraft brakes via injection for wear improvement
AssigneeGoodrich Corporation
InventorsJecee Jarman, Christopher T. Kirkpatrick
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Abstract
A method for infiltrating a wear liner is disclosed herein. The method includes infiltrating a ceramic solution into a carbon/carbon (C/C) substrate, drying the C/C substrate to produce oxide particulates within the C/C substrate, and densifying the C/C substrate, including heating the C/C substrate and oxide particulates to a first temperature, wherein heating the C/C substrate during the densifying avoids promoting a reaction between the oxide particulates and the C/C substrate.
Claims15
A method, comprising:
- infiltrating a ceramic solution into a carbon/carbon (C/C) substrate, the ceramic solution comprising doped nano ceramic binary oxide particulates and nano ceramic ternary oxide particulates, wherein the doped nano ceramic binary oxide particulates comprise at least one of yttrium oxide stabilized zirconium (IV) oxide (YSZ) or zirconium (IV) oxide toughened aluminum oxide (ZTA), and wherein the nano ceramic ternary oxide particulates comprise at least one of hafnium orthosilicate (HfSiO4), aluminum titanate (Al2TiO5), calcium titanate (CaTiO3), strontium titanate (SrTiO3), barium titanate (BaTiO3), hafnium titanate (HfTiO4), strontium zirconate (SrZrO3), or barium zirconate (BaZrO3);
- drying the C/C substrate to produce oxide particulates within the C/C substrate;
- and
- densifying the C/C substrate, including heating the C/C substrate and oxide particulates to a first temperature, wherein heating the C/C substrate during the densifying avoids promoting a reaction between the oxide particulates and the C/C substrate.
A method of infiltrating a ceramic solution into a carbon/carbon (C/C) substrate, comprising:
- injecting, via a needle, the ceramic solution into the C/C substrate, wherein the needle penetrates a thickness of the C/C substrate, wherein the ceramic solution comprises at least one of doped nano ceramic binary oxide particulates or nano ceramic ternary oxide particulates, wherein the doped nano ceramic binary oxide particulates comprise at least one of yttrium oxide stabilized zirconium (IV) oxide (YSZ) or zirconium (IV) oxide toughened aluminum oxide (ZTA), and wherein the nano ceramic ternary oxide particulates comprise at least one of hafnium orthosilicate (HfSiO4), aluminum titanate (Al2TiO5), calcium titanate (CaTiO3), strontium titanate (SrTiO3), barium titanate (BaTiO3), hafnium titanate (HfTiO4), strontium zirconate (SrZrO3), or barium zirconate (BaZrO3);
- drying the C/C substrate to produce oxide particulates within the C/C substrate, wherein the injecting includes injecting the ceramic solution with a gradient through a depth of the C/C substrate;
- and
- densifying the C/C substrate, including heating the C/C substrate and oxide particulates to a first temperature, wherein heating the C/C substrate during the densifying avoids promoting a reaction between the oxide particulates and the C/C substrate.
A method of infiltrating a ceramic solution into a densified carbon/carbon (C/C) disk, comprising:
- drilling a plurality of holes in a wear surface of the densified C/C disk;
- applying the ceramic solution to the densified C/C disk, with the ceramic solution entering into the plurality of holes, wherein the ceramic solution comprises doped nano ceramic binary oxide particulates and nano ceramic ternary oxide particulates, wherein the doped nano ceramic binary oxide particulates comprise at least one of yttrium oxide stabilized zirconium (IV) oxide (YSZ) or zirconium (IV) oxide toughened aluminum oxide (ZTA), and wherein the nano ceramic ternary oxide particulates comprise at least one of hafnium orthosilicate (HfSiO4), aluminum titanate (Al2TiO5), calcium titanate (CaTiO3), strontium titanate (SrTiO3), barium titanate (BaTiO3), hafnium titanate (HfTiO4), strontium zirconate (SrZrO3), or barium zirconate (BaZrO3);
- and
- drying the densified C/C disk.
Dependencies are inferred from the claim text.