Transition metal-based materials for use in high temperature and corrosive environments

Patent metadata

Field	Value
Publication number	US-2020063243-A1
Application number	US-201916520117-A
Country	US
Kind code	A1
Filing date	Jul 23, 2019
Priority date	Aug 27, 2018
Publication date	Feb 27, 2020
Grant date	—

Abstract

A material (e.g., an alloy) comprises molybdenum, rhenium, and at least one element selected from the group consisting of tellurium, iodine, selenium, chromium, nickel, copper, titanium, zirconium, tungsten, vanadium, and niobium. Methods of forming the material (e.g., the alloy) comprise mixing molybdenum powder, rhenium powder, and a powder comprising at least one element selected from the group consisting of tellurium, iodine, selenium, chromium, nickel, copper, titanium, zirconium, tungsten, vanadium, and niobium. The mixed powders may be coalesced to form the material (e.g., the alloy).

First claim

What is claimed is:

1 . A material, comprising:
molybdenum; rhenium; and at least one element selected from the group consisting of tellurium, iodine, selenium, chromium, nickel, copper, titanium, zirconium, tungsten, vanadium, and niobium.

2 . The material of claim 1 , wherein the material is a ternary alloy comprising 47 wt % to 90 wt % molybdenum, 10 wt % to 53 wt % rhenium, and 0.5 wt % to 10 wt % tellurium.

3 . The material of claim 1 , wherein the material is a ternary alloy comprising 70 wt % to 80 wt % molybdenum, 18 wt % to 30 wt % rhenium, and 1 wt % to 2 wt % tellurium.

4 . The material claim 1 , wherein the material is formulated to be substantially chemically unreactive with gaseous fission products of a nuclear reaction.

5 . The material of claim 1 , wherein the material is an alloy consisting of the molybdenum, the rhenium, the tellurium, the iodine, and the selenium.

6 . The material of claim 1 , wherein the material is an alloy and further comprises a platinum group metal.

7 . The material of claim 1 , wherein the material is formulated to be substantially chemically unreactive with products of an electro-chemical reduction process of spent nuclear fuel materials.

8 . A structure for use in a high-temperature application, the structure comprising a body comprising an alloy of:
molybdenum; rhenium; and at least one element selected from the group consisting of tellurium, iodine, selenium, chromium, nickel, copper, titanium, zirconium, tungsten, vanadium, and niobium.

9 . The structure of claim 8 , wherein the body comprising the alloy is a body comprising a component of a nuclear reactor.

10 . The structure of claim 8 , wherein the body comprising the alloy is a body comprising a component of a gas turbine engine.

11 . A structure for use in an electro-chemical reduction process, the structure comprising a body comprising an alloy comprising:
molybdenum; rhenium; at least one element selected from the group consisting of tellurium, iodine, selenium, chromium, nickel, copper, titanium, zirconium, tungsten, vanadium, and niobium; and at least one platinum group metal.

12 . The structure of claim 11 , wherein the at least one platinum group metal comprises ruthenium and iridium.

13 . The structure of claim 12 , wherein the alloy consists of the molybdenum, the rhenium, the tellurium, the iodine, the selenium, the ruthenium, and the iridium.

14 . A method of forming a material, the method comprising:
mixing powders comprising:
molybdenum,
rhenium, and
at least one element selected from the group consisting of tellurium, iodine, selenium, chromium, nickel, copper, titanium, zirconium, tungsten, vanadium, and niobium; and
coalescing the powders to form an alloy of the molybdenum, the rhenium, and the at least one element.

15 . The method of claim 14 , wherein coalescing the powders comprises subjecting the powders to at least one of a powder metallurgy process, an arc melting process, an additive manufacturing process, a plasma processing step, a casting process, and an electrodeposition process.

16 . The method of claim 14 , further comprising exposing the alloy to annealing conditions to densify at least a portion of the alloy.

17 . The method of claim 14 , wherein mixing the powders comprises mixing:
molybdenum powder, rhenium powder, and a powder comprising at least one element selected from the group consisting of the tellurium, the iodine, the selenium, the chromium, the nickel, the copper, the titanium, the zirconium, the tungsten, the vanadium, and the niobium.

Assignees

• Battelle Energy Alliance Llc

Inventors

• Tripathy Prabhat K

Classifications

• G21C11/00

  Shielding structurally associated with the reactor · CPC title

• G21C19/34

  Apparatus or processes for dismantling nuclear fuel, e.g. before reprocessing {; Apparatus or processes for dismantling strings of spent fuel elements}(shielded cells G21F7/00) · CPC title

• G21C13/087

  Metallic vessels · CPC title

• G21C7/00

  Control of nuclear reaction · CPC title

• G21C21/00

  Apparatus or processes specially adapted to the manufacture of reactors or parts thereof (in general section B, e.g. B23) · CPC title