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A kind of micro-alloyed molybdenum-ruthenium alloy preparation method

A technology of microalloying and ruthenium alloy, which is applied in the field of metal material processing, to achieve the effects of improving performance stability and life, uniform distribution, and reducing material consumption

Active Publication Date: 2021-11-26
NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, molybdenum-ruthenium alloy is an excellent electronic functional material, but it is rarely reported

Method used

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  • A kind of micro-alloyed molybdenum-ruthenium alloy preparation method
  • A kind of micro-alloyed molybdenum-ruthenium alloy preparation method
  • A kind of micro-alloyed molybdenum-ruthenium alloy preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] This embodiment includes the following steps:

[0035] Step 1. Add 0.16kg of ruthenium trichloride hydrate into the beaker, add absolute ethanol and stir until completely dissolved, then add it into 9.94kg of molybdenum powder and stir evenly, and use absolute ethanol to clean the beaker and pour the cleaning solution into Stir evenly in the molybdenum powder, then transfer to a polytetrafluoroethylene mixing tank with a solvent of 20L, and use a three-dimensional powder mixer to mix the powder for 4 hours to obtain a mixed powder;

[0036] The ruthenium element content in the hydrated ruthenium trichloride is 37.5%;

[0037] The average Fischer particle size of the molybdenum powder is 2.5 μm, and the mass purity is 99.97%;

[0038] Step 2. Put the mixed powder obtained in step 1 evenly into 4 molybdenum material boats with a size of 200mm×200mm×30mm (length×width×height), and then perform calcination and reduction under hydrogen atmosphere at 800°C for 3h , to obtai...

Embodiment 2

[0049] This embodiment includes the following steps:

[0050] Step 1. Add 0.10kg of ruthenium trichloride hydrate into the beaker, add absolute ethanol and stir until completely dissolved, then add it into 9.965kg of molybdenum powder and stir evenly, and use absolute ethanol to clean the beaker and pour the cleaning solution into Stir evenly in the molybdenum powder, then transfer to a polytetrafluoroethylene mixing tank with a solvent of 20L, and use a three-dimensional powder mixer to mix the powder for 4 hours to obtain a mixed powder;

[0051] The ruthenium element content in the hydrated ruthenium trichloride is 37.5%;

[0052] The average Fischer particle size of the molybdenum powder is 3.5 μm, and the mass purity is 99.971%;

[0053] Step 2. Put the mixed powder obtained in step 1 evenly into 4 molybdenum material boats with a size of 200mm×200mm×30mm (length×width×height), and then perform calcination and reduction in a hydrogen atmosphere at 950°C for 1.5 h, obtai...

Embodiment 3

[0057] This embodiment includes the following steps:

[0058] Step 1. Add 0.12kg of ruthenium trichloride hydrate into the beaker, add absolute ethanol and stir until completely dissolved, then add it into 9.965kg of molybdenum powder and stir evenly, and use absolute ethanol to clean the beaker and pour the cleaning solution into Stir evenly in the molybdenum powder, then transfer to a polytetrafluoroethylene mixing tank with a solvent of 20L, and use a three-dimensional powder mixer to mix the powder for 4 hours to obtain a mixed powder;

[0059] The ruthenium element content in the hydrated ruthenium trichloride is 37.5%;

[0060] The average Fischer particle size of the molybdenum powder is 3.5 μm, and the mass purity is 99.971%;

[0061] Step 2. Put the mixed powder obtained in step 1 evenly into 4 molybdenum material boats with a size of 200mm×200mm×30mm (length×width×height), and then carry out calcination and reduction in a hydrogen atmosphere at 900°C for 2.5 h, obt...

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Abstract

The invention discloses a preparation method of micro-alloyed molybdenum-ruthenium alloy. In the method, ruthenium element is added into molybdenum powder, and the micro-alloyed molybdenum-ruthenium alloy is prepared by powder metallurgy. The present invention adopts the method of microalloying, and prepares molybdenum-ruthenium alloy by adding microalloying element ruthenium element into molybdenum powder, so that the molybdenum-ruthenium alloy has excellent electron receiving and emitting properties, and improves its electronic performance as an electronic functional material. The electronic emission and acceptance properties, high and low temperature mechanical properties, corrosion resistance, and mechanical properties of the components are greatly improved, which improves the performance stability, reliability and life of electronic components.

Description

technical field [0001] The invention belongs to the technical field of metal material processing, and in particular relates to a method for preparing a microalloyed molybdenum-ruthenium alloy. Background technique [0002] Pt group metals have the characteristics of corrosion resistance, high melting point, good electrothermal stability, and high catalytic activity. Metal ruthenium is a noble metal element, which belongs to group ⅧB elements. It has an electronic layer structure similar to Pt, and its chemical properties are very stable. It has corrosion resistance to common acids, aqua regia, hydrofluoric acid, and phosphoric acid. Molten metals such as lithium, copper, etc. are also corrosion resistant. At the same time, ruthenium has a good catalytic effect and can be used in reactions such as hydrogenation, isomerization, oxidation and reforming. Metal molybdenum is a body-centered cubic transition metal, with less than 10 d subelectron shells, its distribution is asym...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/04C22C27/04
CPCC22C1/045C22C27/04
Inventor 梁静张新林小辉高选乔薛建嵘李延超
Owner NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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