Back to results
US 2024/0067578 A1Published application
Sacrificial yarns for use in ceramic matrix composites, methods of manufacture thereof and articles comprising the same
AssigneeRaytheon Technologies Corporation
InventorsZachary P. Konopaske, Robin H. Fernandez, John D. Riehl, Kathryn S. Read, Steven R. Clarke, Aaron Tomich
Life of this patent
Estimating the term…
Abstract
Disclosed herein is a composite co-fiber comprising a plurality of ceramic tows; one or more sacrificial yarns; where the sacrificial yarns are operative to undergo dissolution, decomposition or melting upon being subjected to an elevated temperature; and wherein the sacrificial yarns leave open spaces in the co-fiber upon being subjected to decomposition, dissolution or melting.
Claims20
A composite co-fiber comprising:
- a plurality of ceramic tows;
- one or more sacrificial yarns;
- where the sacrificial yarns are operative to undergo dissolution, decomposition or melting upon being subjected to an elevated temperature;
- and wherein the sacrificial yarns leave open spaces in the co-fiber upon being subjected to decomposition, dissolution or melting.
1 more element
A method of manufacturing a ceramic matrix composite comprising:
- co-braiding a sacrificial yarn with a ceramic tow to form the composite co-fiber;
- melting, dissolving or decomposing the sacrificial yarn to form a space in the composite co-fiber;
- and
- infiltrating the space with a ceramic precursor to form a ceramic matrix.
1 more element
Dependencies are inferred from the claim text.