IP Library Granted Patent US 10,895,545
Granted Patent B2
US 10,895,545 · App. 15/027,827 · Granted Jan 19, 2021

Method of detecting conversion quality of green matrix composite material and system for same

Inventors: Michael J. Birnkrant (Kenilworth, NJ); Wayde R. Schmidt (Pomfret Center, CT)
Assignee: Raytheon Technologies Corporation
G01N27/04F01D5/282F01D25/005G01N21/66G01N21/84G01N33/388F05D2300/5023F05D2300/6033G01N2021/8472
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Quick Facts
Patent No.
US 10,895,545
App. No.
15/027,827
Granted
Jan 19, 2021
Kind
B2
Abstract

A method of detecting conversion quality includes the steps of providing an article having a green material and a semiconductor material, processing the green material and the semiconductor material to produce a matrix composite, and detecting a matrix composite conversion quality with the semiconductor material.

Claims (27)

1. A method of detecting conversion quality, comprising the steps of:

providing an article having a green material and a semiconductor material;

integrating the semiconductor material into the green material to produce a matrix composite;

detecting a matrix composite conversion quality with the semiconductor material, the detecting step includes applying a voltage to the semiconductor material to obtain a response from the semiconductor material indicative of a matrix composite conversion quality; and

producing a matrix composite component if a sufficient matrix composite conversion quality is detected.

2. The method according to claim 1 , wherein the green material is a ceramic polymer precursor material, the integrating step includes processing the ceramic polymer precursor material with the semiconductor material to produce a ceramic matrix composite, the detecting step includes detecting ceramic matrix composite conversion quality with the semiconductor material.

3. The method according to claim 2 , wherein the providing step includes wrapping ceramic polymer resin-embedded carbon or ceramic fibers about a form to provide the ceramic polymer precursor material.

4. The method according to claim 3 , wherein the ceramic polymer resin is a precursor to at least one of SiC, SiCN and SiN.

5. The method according to claim 3 , wherein the providing step includes integrating the semiconductor material into the ceramic polymer resin-embedded carbon or ceramic fibers.

6. The method according to claim 5 , wherein the semiconductor material includes at least one of Si, SiC, SiCN and SiN.

7. The method according to claim 6 , wherein the semiconductor material includes a structure having a high surface area to volume ratio.

8. The method according to claim 6 , wherein the semiconductor material is an aerogel having submicron features.

9. The method according to claim 5 , wherein the integrating step includes pyrolyzing the ceramic polymer resin-embedded carbon fibers and the semiconductor material.

10. The method according to claim 9 , wherein the article is impregnated with ceramic polymer resin and pyrolyzed multiple times to produce a ceramic matrix composite component.

11. The method according to claim 1 , wherein the response is a light emission.

12. The method according to claim 11 , wherein the light emission includes a wavelength indicative of a desired ceramic matrix composite conversion quality.

13. The method according to claim 1 , wherein the response is a change in conductivity.

14. The method according to claim 13 , wherein the conductivity reaches a threshold indicative of a desired matrix composite conversion quality.

15. The method according to claim 1 , wherein the semiconductor material has a desired composition and crystallinity configured to produce the response which is indicative of a desired matrix composite conversion quality.

16. The method according to claim 1 , wherein the matrix composite component is one of a nacelle, engine component vane, blade, blade outer air seal, combustor liner or exhaust liner.

17. The method according to claim 1 , wherein the green material includes a monomer, the integrating step includes processing the monomers into a polymer together with the semiconductor material to produce an organic matrix composite, and the detecting step includes detecting an organic matrix composite quality with the semiconductor material.

18. The method according to claim 17 , wherein the providing step includes wrapping monomer-embedded carbon or ceramic fibers about a form to provide a component shape.

19. The method according to claim 18 , wherein the providing step includes integrating the semiconductor material into the monomer-embedded carbon or ceramic fibers.

20. A gas turbine engine component comprising:

a matrix composite material and a semiconductor material that is significantly less dense than the matrix composite material, the semiconductor material has a submicron thickness, diameter, pore size or ligament circumference, the semiconductor material includes a p-n junction;

wherein the semiconductor material is configured to provide a response to a voltage across the p-n junction that includes at least one of light emission and a conductivity, the response indicative of a matrix composite conversion quality.

21. The gas turbine engine component according to claim 20 , wherein the gas turbine engine component is one of a nacelle, engine component vane, blade, blade outer air seal, combustor liner or exhaust liner, and the matrix composite material and the semiconductor material are provided by at least one of Si, SiC, SiCN and SiN.

Assignments (4)
CHANGE OF NAME Recorded Jul 27, 2023
From: RAYTHEON TECHNOLOGIES CORPORATION
To: RTX CORPORATION
Reel/Frame 064714/0001 →
CORRECTIVE ASSIGNMENT TO CORRECT THE AND REMOVE PATENT APPLICATION NUMBER 11886281 AND ADD PATENT APPLICATION NUMBER 14846874. TO CORRECT THE RECEIVING PARTY ADDRESS PREVIOUSLY RECORDED AT REEL: 054062 FRAME: 0001. ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF ADDRESS. Recorded Mar 4, 2021
From: UNITED TECHNOLOGIES CORPORATION
To: RAYTHEON TECHNOLOGIES CORPORATION
Reel/Frame 055659/0001 →
CHANGE OF NAME Recorded Sep 4, 2020
From: UNITED TECHNOLOGIES CORPORATION
To: RAYTHEON TECHNOLOGIES CORPORATION
Reel/Frame 054062/0001 →
CHANGE OF NAME Recorded Apr 22, 2020
From: UNITED TECHNOLOGIES CORPORATION
To: RAYTHEON TECHNOLOGIES CORPORATION
Reel/Frame 052472/0871 →
Continuity (2)
Provisional Application 61890775 · Oct 14, 2013
Related Publication 20160245767A1 · Aug 25, 2016