Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
INFILTRATING BORON NITRIDE INTO A CARBON-CARBON SUBSTRATE
A method is provided for forming a carbon/carbon (C/C) disk with boron nitride (BN) doping. Borazine is generated using a set of borazine precursors. Starting carbon fibers are coated or impregnated with the borazine in an inert atmosphere. The starting carbon fibers are needled into layered fabric and the layered fabric is needled into boards from which a preform is cut, the needling and cutting performed in the inert atmosphere. The borazine in the preform is stabilized to convert the borazine to polyborazylene. The polyborazylene in the preform is cured. The polyborazylene in the preform is then crystalized to form BN particulates. The preform with the BN particulates is carbonized and then densified with pyrolytic carbon.
INFILTRATING BORON NITRIDE INTO A CARBON-CARBON SUBSTRATE
A method is provided for forming a carbon/carbon (C/C) disk with boron nitride (BN) doping. Borazine is generated using a set of borazine precursors. Starting carbon fibers are coated or impregnated with the borazine in an inert atmosphere. The starting carbon fibers are needled into layered fabric and the layered fabric is needled into boards from which a preform is cut, the needling and cutting performed in the inert atmosphere. The borazine in the preform is stabilized to convert the borazine to polyborazylene. The polyborazylene in the preform is cured. The polyborazylene in the preform is then crystalized to form BN particulates. The preform with the BN particulates is carbonized and then densified with pyrolytic carbon.
INFILTRATING BORON NITRIDE INTO A CARBON-CARBON SUBSTRATE
INFILTRIEREN VON BORNITRID IN EIN KOHLENSTOFF-KOHLENSTOFF-SUBSTRAT
INFILTRATION DE NITRURE DE BORE DANS UN SUBSTRAT CARBONE-CARBONE
JARMAN JECEE (Autor:in) / BARTOLO LAUREN (Autor:in)
19.03.2025
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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