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A kind of preparation method of copper gallium alloy, silver gallium alloy

A copper-gallium alloy and silver-gallium technology is applied in the preparation field of copper-gallium alloy and copper-silver alloy, which can solve the problems of affecting the effect of forming alloys, complex system equipment, poor fusion effect, etc., achieving excellent industrial production prospects and simple operation process. , to avoid the effect of high temperature environment

Active Publication Date: 2020-03-06
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

This method requires a high-temperature environment, the system equipment is complicated, the production method is cumbersome and time-consuming, and usually requires multiple steps, and the cost is high and the convenience is low, so the application of this method is greatly restricted.
In particular, directly stirring the copper powder and silver powder with the liquid metal not only has poor fusion effect, but also causes a large amount of oxidation of the liquid metal, which greatly affects the effect of forming an alloy.

Method used

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  • A kind of preparation method of copper gallium alloy, silver gallium alloy
  • A kind of preparation method of copper gallium alloy, silver gallium alloy
  • A kind of preparation method of copper gallium alloy, silver gallium alloy

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preparation example Construction

[0035] by figure 1 The schematic diagram of the preparation method of copper-gallium alloy is shown in the flow chart, which mainly includes:

[0036] S1: prepare acidic copper salt solution and pure gallium;

[0037] S2: Put pure gallium in an acidic copper salt solution, and heat the solution to a temperature higher than 29°C until the gallium becomes completely liquid;

[0038] S3: Stand still for several hours, after the reaction is complete and the solution becomes transparent, remove the solution to obtain a high-purity copper-gallium alloy.

Embodiment 1

[0040] 5ml mass concentration is that the cupric chloride solution of 10% and the hydrochloric acid solution that 5ml molar concentration is 2mol / L are mixed to form acidic cupric chloride solution, adds 6g pure gallium ( figure 2 A), be heated to 30 ℃, until gallium becomes liquid completely; Stand still, until solution becomes transparent color ( figure 2 B), remove solution and obtain high-purity copper-gallium alloy ( image 3 ).

[0041] The copper-gallium alloy prepared in this embodiment is tested for its elemental composition by energy spectrum testing, and it is found that it is mainly composed of copper and gallium ( Figure 4 ), which proved the successful preparation of copper-gallium alloy with higher purity.

[0042] Reaction principle: Because gallium and copper have different electrode potentials in acidic solution, gallium is more active than copper. Thus gallium can reduce copper out of solution. At the same time, because of the good wettability between...

Embodiment 2

[0044] Mix 5ml of silver nitrate solution with a mass concentration of 20% and 5ml of nitric acid solution with a molar concentration of 2mol / L to form an acidic silver nitrate solution, add 10g of pure gallium therein, and heat to 30°C until the gallium becomes liquid completely; Stand still until the solution becomes transparent, and remove the solution to obtain a high-purity silver-gallium alloy.

[0045] The element composition contained in the silver-gallium alloy prepared in this embodiment was also tested by energy spectrum test, and it was found that it was mainly composed of silver and gallium, which proved that the silver-gallium alloy with high purity was successfully prepared.

[0046] Reaction principle is similar to embodiment 1.

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Abstract

The invention relates to a preparation method for a copper-gallium alloy and a silver-gallium alloy. The preparation method comprises the following steps: placing gallium in an acidic copper salt solution or an acidic silver salt solution; heating to enable gallium to be completely in a liquid state; standing; and preparing the copper-gallium alloy or the silver-gallium alloy after the reaction iscompleted. According to the preparation method, copper / silver elementary substance replaced in a solution environment is devoured by liquid-state gallium, so that the copper-gallium alloy is formed.The whole operation process of the method is simple, the system is not complex, a high-temperature environment is avoided, and the method is a convenient and feasible alloy preparation method. According to the method, the reaction is carried out by virtue of the solution environment, so that the liquid-state metal is prevented from being oxidized. Meanwhile, high-accuracy copper powder and silverpowder do not need to be prepared in the whole reaction process, and the copper-gallium alloy / silver-gallium alloy with high accuracy can be obtained by virtue of the replaced copper and silver particles, so that the method has an excellent industrialized production prospect.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a method for preparing a copper-gallium alloy and a copper-silver alloy. Background technique [0002] Humans have used metals for thousands of years. For thousands of years, metals have played a very important role in the development of human history. Metal copper and silver are undoubtedly excellent representatives among them. The glorious achievements of the Bronze Age have also been recorded in history, and silver metal has also widely appeared in people's daily life. In recent years, liquid gallium-based alloys have achieved rapid development because of their excellent properties. Combining the advantages of gallium, copper, and silver metals and making them into alloys has become the goal pursued by researchers. [0003] Recently, scientific research has found that copper gallium alloy (CuGa 2 ) has very good properties. Compared with pure gallium, the thermal conducti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/00
CPCC22C1/00
Inventor 陈森刘静
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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