Method and apparatus for in situ synthesis of SiC, SiC ceramic matrix composites, and SiC metal matrix composites during additive manufacturing

Patent · Tue Oct 03 00:00:00 EDT 2023

OSTI ID:2293658

Liu, Jian

Methods and apparatuses for in situ synthesis of SiC, CMCs, and MMCs are disclosed, comprising: providing an apparatus having: an electromagnetic energy source; an autofocusing scanner; a powder system for SiC and one or more powders; a powder delivery system; a shielding gas comprising argon and/or nitrogen; and a computer coupled to and configured to control the energy source, scanner, powder system, and powder delivery system to deposit layers of the sample; programming the computer with specifications of the sample; using the computer to control electromagnetic radiation, mixing ratio, and powder deposition parameters based on the specifications of the sample; and using the autofocusing scanner to focus and scan the electromagnetic radiation onto the sample while the powders are concurrently deposited by the powder delivery system onto the sample to create a melting pool to deposit one or more layers onto the sample. Other embodiments are described and claimed.

• Research Organization: PolarOnyx, Inc., Chapel Hill, NC (United States)
• Sponsoring Organization: USDOE; National Aeronautics and Space Administration (NASA)
• DOE Contract Number: SC0019860; 80NSSC19C0268
• Assignee: PolarOnyx, Inc. (Chapel Hill, NC)
• Patent Number(s): 11,772,161
• Application Number: 16/736,596
• OSTI ID: 2293658
• Resource Relation: Patent File Date: 01/07/2020
• Country of Publication: United States
• Language: English