Tungsten tetraboride composite matrix and uses thereof

Patent metadata

Field	Value
Publication number	US-12344921-B2
Application number	US-202318532796-A
Country	US
Kind code	B2
Filing date	Dec 7, 2023
Priority date	Feb 6, 2017
Publication date	Jul 1, 2025
Grant date	Jul 1, 2025

Abstract

Disclosed herein, in certain embodiments, are composite materials, methods, tools and abrasive materials comprising a tungsten-based metal composition, a tungsten carbide, and an alloy. In some cases, the composite materials or matrix are resistant to oxidation.

First claim

What is claimed is:

1. A tool or tool component, wherein the tool or tool component comprises a composite material, wherein the composite material comprises:
(a) a first composition comprising a first formula

wherein:
W is tungsten (W);
X is one of boron (B), beryllium (Be) and silicon (Si);
M is at least one of titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), zirconium (Zr), niobium (Nb), molybdenum (Mo), ruthenium (Ru), hafnium (Hf), tantalum (Ta), rhenium (Re), osmium (Os), iridium (Ir), lithium (Li), scandium (Sc), yttrium (Y) or aluminum (Al);
x is from 0.001 to 0.999;
y is at least 4.0;
n is from 0.01 to 0.999; and

(b) a tungsten carbide of formula (wc 0.99-1.05 ) p , wherein p is from 0.01 to 0.99; and
(c) a second composition comprising a second formula T q ,
wherein:
T comprises an alloy comprising at least one group 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, or 14 element of the Periodic Table of Elements;
q is from 0.01 to 0.99;
wherein the sum of p, q, and n is 1;
wherein p, q and n are weight percentage ranges;
wherein the composite material has hardness of about 1 to about 40 GPa as determined by Vickers hardness under a force of 294N (HV30); and
wherein the composite material has a fracture toughness of about 1 to about 25 MPa·m 1/2 as determined using the Palmquist method.

2. The tool of claim 1 , wherein the composite material is a body or tool or tool component.

3. The tool of claim 1 , wherein the composite material is a surface of the tool or tool component.

4. The tool of claim 1 , wherein the composite material coats the tool or tool component.

5. The tool of claim 1 , wherein the tool or tool component comprises a wheel or grinding wheel.

6. The tool of claim 1 , wherein the tool or tool component comprises a drilling tool.

7. The tool of claim 1 , wherein the tool or tool component comprises drill bits, inserts or dies.

8. The tool of claim 1 , wherein the tool or tool component comprises a downhole tool.

9. The tool of claim 1 , wherein the tool or tool component comprises an etching tool.

10. The tool of claim 1 , wherein the tool or tool component comprises an engraving tool or carving tool.

11. The tool of claim 1 , wherein the tool or tool component comprises a grinding tool or polishing tool.

12. The tool of claim 1 , wherein the (W 1-x M x X y ) n has a median particle size of about 1 μm to about 750 μm.

13. The tool of claim 1 , wherein the T q has a median particle size of about 45 μm or less.

14. The tool of claim 1 , wherein X is B.

15. The tool of claim 1 , wherein M comprises at least one of Re, Ta, Mn, Cr, Hf, Ta, Zr, or Y.

16. The tool of claim 1 , wherein M comprises at least two of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Ru, Hf, Ta, Re, Os, Ir, Li, Sc, Y, or Al.

17. The tool of claim 1 , wherein M comprises Re, Ta, Mn, or Cr.

18. The tool of claim 1 , wherein x is from 0.001 to 0.4.

19. The tool of claim 1 , wherein T comprises at least one of Co, Fe, Ni, or Sn.

20. The tool of claim 1 , wherein the composite material is resistant to oxidation.

Assignees

• Univ California
• Supermetalix Inc

Inventors

• Kaner Richard B
• Turner Christopher L
• Keshavan Madapusi K
• Kavanaugh Jack

Classifications

• C22C1/1084

  by mechanical alloying (blending, milling) · CPC title

• C22C1/051

  Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor · CPC title

• C22C33/0292

  with more than 5% preformed carbides, nitrides or borides · CPC title

• C22C29/08

  based on tungsten carbide · CPC title

• B24D18/0009

  using moulds or presses · CPC title