Toughened and corrosion- and wear-resistant composite structures and fabrication methods thereof

Patent metadata

Field	Value
Publication number	US-9682531-B2
Application number	US-201414182327-A
Country	US
Kind code	B2
Filing date	Feb 18, 2014
Priority date	May 16, 2008
Publication date	Jun 20, 2017
Grant date	Jun 20, 2017

Abstract

Composite structures having a reinforced material interjoined with a substrate, wherein the reinforced material comprises a compound selected from the group consisting of titanium monoboride, titanium diboride, and combinations thereof.

First claim

What is claimed is:

1. A composite structure comprising a non-titanium substrate, wherein the non-titanium substrate includes:
a bulk portion having a microstructure;
a surface portion disposed above the bulk portion; and
a reinforced material intermingled with the surface portion, the reinforced material resulting in a surface modification of the composite structure while substantially maintaining the microstructure of the bulk portion of the composite structure,
wherein the reinforced material comprises a compound selected from the group consisting of titanium monoboride, titanium diboride, and combinations thereof, and wherein the reinforced material is disposed at least partially below a surface of the surface portion.

2. The composite structure of claim 1 wherein the reinforced material comprises titanium monoboride.

3. The composite structure of claim 1 wherein the reinforced material comprises structures selected from the group consisting of β-titanium, TiB needles, TiB pillars, and combinations of two or more of the three.

4. The composite structure of claim 1 wherein the substrate comprises aluminum.

5. The composite structure of claim 1 wherein the substrate consists of aluminum or an aluminum alloy.

6. The composite structure of claim 1 wherein the reinforced material extends into the surface portion of the substrate to a depth of approximately five microns or less.

7. The composite structure of claim 1 wherein the substrate comprises steel.

8. The composite structure of claim 1 wherein the substrate comprises a ceramic.

9. The composite structure of claim 1 wherein the substrate comprises a polymer.

10. The composite structure of claim 1 wherein the substrate comprises a ferrous metal.

11. The composite structure of claim 1 wherein the reinforced material comprises TiB pillars having an aspect ratio between one and five.

Assignees

• Cons Nuclear Security Llc

Inventors

• Seals Roland D
• Ripley Edward B
• Hallman Russell L

Classifications

• C23C18/08

  characterised by the deposition of metallic material · CPC title

• B23K35/327

  comprising refractory compounds, e.g. carbides · CPC title

• B23K35/325 Primary

  Ti as the principal constituent · CPC title

• Y10T428/24826

  Spot bonds connect components · CPC title

• C23C18/1204

  inorganic material, e.g. non-oxide and non-metallic such as sulfides, nitrides based compounds · CPC title