Refractory materials
AssigneeHoneywell International Inc.
InventorsKevin Blinn, Mehrad Mehr, Bahram Jadidian
Life of this patent
Estimating the term…
Abstract
A method for forming a refractory component of foundry system includes forming a preform from a refractory mixture. The refractory mixture includes a silicon carbide preceramic polymer and at least one of a refractory powder or refractory aggregate. The method further includes heating the preform to pyrolyze the silicon carbide preceramic polymer and form a refractory material defining the refractory component. The resulting refractory material includes at least one of the refractory powder or the refractory aggregate in a silicon carbide matrix. The refractory component defines an oxidation-resistant surface configured to contact molten metal.
Claims20
A method for forming a refractory component of a foundry system, comprising:
- forming a preform from a refractory mixture, wherein the refractory mixture comprises:
- a silicon carbide preceramic polymer;
- and
- at least one of a refractory powder or refractory aggregate;
- and
- heating the preform to pyrolyze the silicon carbide preceramic polymer and form a refractory material defining the refractory component, wherein the refractory material comprises at least one of the refractory powder or the refractory aggregate in a silicon carbide matrix,
- wherein the refractory component defines an oxidation-resistant surface configured to contact molten metal.
A high temperature article of a foundry system, comprising:
- a refractory component defining an oxidation-resistant surface configured to contact molten metal, wherein the refractory component comprises a refractory material, and wherein the refractory material comprises:
- a polymer-derived silicon carbide matrix;
- and
- at least one of a refractory powder or refractory aggregate in the silicon carbide matrix.
Dependencies are inferred from the claim text.