Ceramic materials comprising preceramic resin formulations, and related articles and methods
AssigneeNorthrop Grumman Systems Corporation
InventorBenjamin W. C. Garcia
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Abstract
A preceramic resin formulation comprising a polycarbosilane preceramic polymer and an organically modified silicon dioxide preceramic polymer. A ceramic material comprising a reaction product of the polycarbosilane preceramic polymer and organically modified silicon dioxide preceramic polymer is also described. Articles comprising the ceramic material are also described, as are methods of forming the preceramic resin formulation and the ceramic material.
Claims20
A ceramic material comprising a reaction product of a polycarbosilane preceramic polymer and an organically modified silicon dioxide preceramic polymer, the organically modified silicon dioxide preceramic polymer comprising monomers having the chemical structure of:
- where each of R3 and R4 is independently a methyl (CH3) group, a vinyl group (CH2═CH) directly bonded to the silicon atom, or a vinyl group (CH2═CH) bonded to the silicon atom by an alkyl linker, and n is an integer from 2 to 10,000.
A method of forming a preceramic resin formulation, comprising:
- combining a polycarbosilane preceramic polymer and an organically modified silicon dioxide preceramic polymer with a crosslinking agent to form the preceramic resin formulation, the organically modified silicon dioxide preceramic polymer comprising monomers having the chemical structure of:
- where each of R3 and R4 is independently a methyl (CH3) group, a vinyl group (CH2═CH) directly bonded to the silicon atom, or a vinyl group (CH2═CH) bonded to the silicon atom by an alkyl linker, and n is an integer from 2 to 10,000.
A method of forming a ceramic material, comprising:
- forming a preceramic resin formulation comprising a polycarbosilane preceramic polymer, an organically modified silicon dioxide preceramic polymer, and a crosslinking agent;
- reacting vinyl groups of the polycarbosilane preceramic polymer with silicon-hydrogen bonds of the organically modified silicon dioxide preceramic polymer to cure the preceramic resin formulation to form a cured preceramic resin formulation;
- and
- ceramifying the cured preceramic resin formulation to form a ceramic material.
An article, comprising:
- a reaction product of a polycarbosilane preceramic polymer and an organically modified silicon dioxide preceramic polymer, the article configured as a component of a rocket motor or of a high temperature aerostructure, the organically modified silicon dioxide preceramic polymer comprising monomers having the chemical structure of:
- where each of R3 and R4 is independently a methyl (CH3) group, a vinyl group (CH2═CH) directly bonded to the silicon atom, or a vinyl group (CH2═CH) bonded to the silicon atom by an alkyl linker and n is an integer from 2 to 10,000.
Dependencies are inferred from the claim text.