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A kind of cu70zr20ti10/cu/ni-p amorphous alloy composite powder and its preparation process

A cu70zr20ti10, amorphous alloy technology, used in metal material coating technology, metal processing equipment, liquid chemical plating and other directions, can solve the problems of limited application scope, room temperature brittleness, low thermal conductivity and high temperature oxidation resistance, etc. Overcome the effect of pH changes

Active Publication Date: 2019-02-26
HUNAN INSTITUTE OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Copper-based amorphous alloys have very broad application prospects in the field of structural and functional materials due to their high strength, corrosion resistance, wear resistance, low-temperature plasticity, catalytic properties, and martensitic transformation. However, they are brittle at room temperature and low in thermal conductivity. Electrical conductivity and high temperature oxidation resistance limit its application range

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Weigh Cu with a balance 70 Zr 20 Ti 10 Put 5 g of spherical amorphous powder into a beaker, add a mixed solution of 2% hydrochloric acid, 1% nitric acid and 0.5% hydrofluoric acid for activation treatment for 1 hour, and then deionize the Cu 70 Zr 20 Ti 10 The spherical amorphous alloy powder is cleaned, and then the cleaned Cu 70 Zr 20 Ti 10 The spherical amorphous alloy powder is put into a ball milling tank, and then the ball milling tank is filled with an electroless plating solution with a pH value of 8.0. Under the condition that the ball-to-material ratio is 30:1 and the ball milling speed is 500 rpm, the ball milling is completed after 1 hour. A flaky amorphous alloy powder can be obtained. The thermal conductivity of the amorphous alloy composite powder is 15.4W / m·K, and the resistivity is 1.45×10 -3 Ω·mm.

Embodiment 2

[0014] Weigh Cu with a balance 70 Zr 20 Ti 10 Put 10 g of spherical amorphous powder into a beaker, add a mixed solution of 2% hydrochloric acid, 1% nitric acid and 0.5% hydrofluoric acid for activation treatment for 1 hour, and then deionize the Cu 70 Zr 20 Ti 10 The spherical amorphous alloy powder is cleaned, and then the cleaned Cu 70 Zr 20 Ti 10 The spherical amorphous alloy powder is put into a ball milling tank, and then the ball milling tank is filled with an electroless plating solution with a pH value of 8.0. Under the condition that the ball-to-material ratio is 30:1 and the ball milling speed is 500 rpm, the ball milling is completed after 1 hour. A flaky amorphous alloy powder can be obtained. The thermal conductivity of the amorphous alloy composite powder is 15.4W / m·K, and the resistivity is 1.45×10 -3 Ω·mm.

Embodiment 3

[0016] Weigh Cu with a balance 70 Zr 20 Ti 10 Put 15g of spherical amorphous powder into a beaker, add a mixed solution of 2% hydrochloric acid, 1% nitric acid and 0.5% hydrofluoric acid for activation treatment for 1 hour, and then deionize the Cu 70 Zr 20 Ti 10 The spherical amorphous alloy powder is cleaned, and then the cleaned Cu 70 Zr 20 Ti 10 The spherical amorphous alloy powder is put into a ball milling tank, and then the ball milling tank is filled with an electroless plating solution with a pH value of 8.0. Under the condition that the ball-to-material ratio is 30:1 and the ball milling speed is 500 rpm, the ball milling is completed after 1 hour. A flaky amorphous alloy powder can be obtained. The thermal conductivity of the amorphous alloy composite powder is 15.4W / m·K, and the resistivity is 1.45×10 -3 Ω·mm.

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Abstract

The invention discloses a Cu 70 Zr 20 Ti 10 / Cu / Ni‑P amorphous alloy composite powder and its preparation process. The composite powder is prepared by ball milling and electroless plating method, its shape is flake, the average thickness is 300nm, and the average size is 20nm Cu grains, Cu 70 Zr 20 Ti 10 Composed of amorphous alloy substrate and Ni‑P amorphous alloy coating, the distribution mode is that Cu grains are evenly distributed in Cu 70 Zr 20 Ti 10 amorphous alloy matrix, while the Ni‑P amorphous alloy coating is uniformly wrapped in Cu 70 Zr 20 Ti 10 on an amorphous alloy substrate. Its preparation process is: spherical Cu 70 Zr 20 Ti 10 The crystalline alloy powder is activated with a mixed solution of hydrochloric acid, nitric acid and hydrofluoric acid, put into a ball mill tank filled with chemical plating solution, and ball milled to synthesize. The thermal conductivity of the amorphous alloy composite powder is 15.4W / m·K, and the resistivity is 1.45×10 ‑3 Ω·mm.

Description

technical field [0001] The present invention relates to a Cu 70 Zr 20 Ti 10 / Cu / Ni-P amorphous alloy composite powder and its preparation process. Background technique [0002] Copper-based amorphous alloys have very broad application prospects in the field of structural and functional materials due to their high strength, corrosion resistance, wear resistance, low-temperature plasticity, catalytic properties, and martensitic transformation. However, they are brittle at room temperature and low in thermal conductivity. Electrical conductivity and high temperature oxidation resistance limit its application range. Therefore, the present invention aims to improve the room-temperature plasticity, electrical and thermal conductivity, and high-temperature oxidation resistance of copper-based amorphous alloys, which is of great significance. Contents of the invention [0003] The object of the present invention is to provide a kind of Cu 70 Zr 20 Ti 10 / Cu / Ni-P amorphous a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C45/00B22F1/02B22F9/24C23C18/32C23C18/18
CPCC22C45/001C23C18/1637C23C18/1646C23C18/1664C23C18/1834C23C18/32B22F9/24B22F1/068B22F1/17
Inventor 蔡安辉胡优生安琪周国君罗云李小松丁超义
Owner HUNAN INSTITUTE OF SCIENCE AND TECHNOLOGY