Invention Grant
- Patent Title: Slurry infiltration heat treatment method
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Application No.: US17006191Application Date: 2020-08-28
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Publication No.: US12054438B2Publication Date: 2024-08-06
- Inventor: Camila S. Bortoluzzi , Sungbo Shim
- Applicant: Rolls-Royce High Temperature Composites Inc.
- Applicant Address: US CA Cypress
- Assignee: Rolls-Royce High Temperature Composites, Inc.
- Current Assignee: Rolls-Royce High Temperature Composites, Inc.
- Current Assignee Address: US CA Cypress
- Agency: Shumaker & Sieffert, P.A.
- Main IPC: C04B41/52
- IPC: C04B41/52 ; C04B35/628 ; C04B35/80 ; C04B41/00 ; C04B41/45 ; C04B41/50 ; C04B41/51

Abstract:
A method of producing a melt infiltrated ceramic matrix composite (CMC) article that includes the steps of: forming a ceramic fiber preform; optionally, rigidizing the ceramic fiber preform with a fiber interphase coating via a Chemical Vapor Infiltration (CVI) process, infiltrating a ceramic slurry into the porous body or preform, conducting one or more secondary operations, and finally, melt infiltrating the preform with molten silicon or a silicon alloy to form the CMC article. The infiltration of a ceramic slurry into a ceramic fiber preform to form a green body is performed along with the use of convection and/or conduction as heat transfer mechanisms, such that the ceramic slurry does not require the incorporation of a pre-gelation material in order for the slurry to remain within the green body during subsequent processing steps.
Public/Granted literature
- US20210155558A1 SLURRY INFILTRATION HEAT TREATMENT METHOD Public/Granted day:2021-05-27
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