Reactive melt infiltrated-ceramic matrix composite

Patent metadata

Field	Value
Publication number	US-9701578-B2
Application number	US-201314141969-A
Country	US
Kind code	B2
Filing date	Dec 27, 2013
Priority date	Mar 15, 2013
Publication date	Jul 11, 2017
Grant date	Jul 11, 2017

Abstract

A method includes providing a ceramic fiber preform with a range of 20 to 40 volume percent fiber which can include silicon carbide fibers; coating the ceramic fiber preform with a boron nitride interface coating; infiltrating the ceramic fiber preform with a ceramic matrix with a range of 20 to 40 volume percent silicon carbide; infiltrating the ceramic fiber preform with a constituent material such as boron carbide, boron, and carbon; and infiltrating the ceramic fiber preform with a eutectic melt material where the metallic eutectic melt can include at least one material from a group consisting of: a transition metal-silicon eutectic melt such as zirconium silicide, a transition metal-boride eutectic melt such as zirconium boride, and a transition metal-carbide eutectic melt such as zirconium carbide.

First claim

What is claimed is:

1. A method comprising:
providing a ceramic fiber preform;
coating the ceramic fiber preform with a boron nitride interface coating;
infiltrating the ceramic fiber preform with a ceramic matrix material;
infiltrating the ceramic fiber preform with a constituent material comprising boron carbide, boron, carbon or combinations thereof; and
infiltrating the ceramic fiber preform with a eutectic melt material.

2. The method of claim 1 , wherein the coating of the ceramic fiber preform comprises a chemical vapor infiltration process.

3. The method of claim 1 , wherein the infiltrating of the ceramic fiber preform with a ceramic matrix material comprises at least one operation selected from a group consisting of: polymer infiltrating, chemical vapor infiltrating, and slurry infiltrating.

4. The method of claim 1 , further including heat treating the ceramic fiber preform.

5. The method of claim 1 , wherein the ceramic fiber preform comprises a silicon carbide.

6. The method of claim 1 , wherein the ceramic matrix material comprises a silicon carbide.

7. The method of claim 1 , wherein the constituent material comprises boron carbide.

8. The method of claim 1 , wherein the eutectic melt material comprises a transition metal-silicon eutectic melt.

9. The method of claim 1 , wherein the eutectic melt material comprises zirconium and silicon.

10. A method comprising:
producing a coated preform including a ceramic fibrous structure and a boron nitride interface coating;
infiltrating the coated preform with a ceramic matrix material;
infiltrating the coated preform and the ceramic matrix material with a constituent material comprising boron carbide, boron, carbon or combinations thereof; and
infiltrating the coated preform and the ceramic matrix material having the constituent material with a metallic eutectic melt.

11. The method of claim 10 , wherein the producing of the coated preform comprises forming the ceramic fibrous structure with a range of 20 to 40 volume percent fiber.

12. The method of claim 11 , wherein the infiltrating of the coated preform with the ceramic matrix material comprises providing the ceramic matrix with a range of 20 to 40 volume percent silicon carbide.

13. The method of claim 12 , wherein the infiltrating of the coated preform and the ceramic matrix material with the constituent material comprises providing a range of 5 to 15 volume percent constituent material.

14. The method of claim 13 , wherein the infiltrating of the coated preform and the ceramic matrix material having the constituent material with the metallic eutectic melt comprises infiltrating to at least 10 volume percent metallic eutectic melt.

Assignees

• Rolls Royce Corp

Inventors

• Chamberlain Adam Lee

Classifications

• C04B35/591

  obtained by reaction sintering · CPC title

• C04B2235/3826

  Silicon carbides · CPC title

• C04B2235/616

  Liquid infiltration of green bodies or pre-forms · CPC title

• C04B2235/5244

  Silicon carbide · CPC title

• C04B2235/3813

  Refractory metal borides · CPC title