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Imitation gold alloy and its preparation method and application

A technology of imitating gold and alloys, which is applied in the field of imitating gold alloys and its preparation, can solve the problems of difficult industrial mass production of nano powder, high alloy manufacturing costs, and low alloy hardness, so as to improve hardness, structural stability, and corrosion resistance Performance, strong anti-aging effect

Active Publication Date: 2022-04-08
VITALNK IND SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It can be seen that the effect of imitating gold can be achieved through alloy doping, and the mechanical properties of Cu alloy can also be improved. For example, the imitation gold bonding alloy wire is doped with Ag, In, Pd and other metals that are not easily oxidized, which can improve the copper alloy. However, since Ag, In, and Pd are all precious metals, the manufacturing cost of such alloys is still high, and the hardness of the alloys produced is low, and irregularities are easy to occur in the sanding process of nano powder manufacturing. deformation, which makes it difficult for this type of process to be applied to the industrial mass production of nanopowder

Method used

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  • Imitation gold alloy and its preparation method and application

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preparation example Construction

[0056] The present invention also provides a method for preparing an imitation gold alloy, which is to prepare the imitation gold alloy by means of physical vapor deposition;

[0057] The chemical formula of the imitation gold alloy is Zr x Si y Ni z Cu 1-x-y-z , x, y and z are atomic percentages, and x, y and z satisfy: 0.05≤x≤0.13, 0.02≤y≤0.10, 0.02≤z≤0.05.

[0058] It can be understood that the pseudo-gold alloy obtained by physical vapor deposition is in the form of a thin film.

[0059] In one embodiment, the physical vapor deposition method is at least one of vacuum evaporation, magnetron sputtering coating, arc plasma coating, ion coating and molecular beam epitaxy.

[0060] In one of the embodiments, the physical vapor deposition method is magnetron sputtering coating, and the preparation of the imitation gold alloy by magnetron sputtering coating includes:

[0061] A substrate, a source of Zr, a source of Si, a source of Ni and a source of Cu are provided, a work...

specific Embodiment

[0111] The hardness test method of the present invention is as follows: the model produced by Anton-Paar in Austria is NHT3 nano-indenter to test the hardness of each film, which is configured with a tetrahedral Berkvich indenter, and the indentation depth is set to be 100nm, and the load occurs with the indentation depth Change, and take the average value after testing 5 matrix points for each sample.

[0112] The composition test of the imitation gold alloy of the present invention utilizes the X-ray energy spectrometer (EDX) of FEI Quanta TM 250 FEG to analyze the composition and distribution of the coating. Select an area not less than 30 mm for each sample 2 area, the average value of its constituents is measured.

[0113] Chromaticity value test method of the present invention is as follows: adopt the model that Japanese Konica produces is the L, a, b chromaticity value of test sample of CM-3700A-U desktop spectrometer, the light receiving system selects F2 light source...

Embodiment 1

[0117] This embodiment provides an imitation gold alloy and a preparation method thereof.

[0118] Ni used in this example m Cu 1-m Alloy target, its m=0.10, m is the atomic percentage. The preparation method of imitation gold alloy is as follows:

[0119] 1) Pre-treatment: Put the PET sample into DI water for ultrasonic cleaning for 15 minutes, dry it in a baking oven and put it into the vacuum chamber of the evaporative coating machine. The vacuum chamber is evacuated to 5*10 -5 Pa, heated to 80°C, constant temperature for 15 minutes;

[0120] 2) Deposit the water-soluble peeling layer: in the vacuum chamber, place the PET sample on the sample stage of the resistance evaporation equipment, place the water-soluble water-based ink film material in the evaporation boat, and evacuate to 5.0*10 -5 Pa, depositing a water-based ink peeling layer with a thickness of 30nm on the surface of the PET sample, and taking out the sample after the preparation is completed;

[0121] 3) ...

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Abstract

The invention relates to a gold imitation alloy and its preparation method and application. The chemical formula of the imitation gold alloy is Zr x Si y Ni z Cu 1‑x‑y‑z , x, y and z are atomic percentages, 0.05≤x≤0.13, 0.02≤y≤0.10, 0.02≤z≤0.05, which is an amorphous structure and can form a four-phase alloy, which is mainly due to Zr, Si, Ni and The atomic radius of Cu is very close, which is conducive to its alloying growth during the growth process. Moreover, during the growth process, Zr and Cu, Ni and Cu, and Zr and Si tend to form strong metal bonds, resulting in a powder structure that is quasi-amorphous and forms a dense internal structure, thereby improving its corrosion resistance. . In addition, doping a small amount of Ni and Si is beneficial to improve the hardness and structural stability of the alloy, thereby improving the particle regularity of the powder during ball milling or sand milling.

Description

technical field [0001] The invention relates to the technical field of alloy materials, in particular to a gold imitation alloy and its preparation method and application. Background technique [0002] Metal nanopowder is an important processing material in the field of glass and plastic decoration due to its excellent physical and chemical properties and metallic color characterization. Imitation gold decorative nano-powder has been sought after by the market because its color characterization is similar to gold (Au). The consistency of powder morphology and characterization is poor. Copper (Cu) nanopowders are generally used in the industry to replace pure gold nanopowders. However, due to the chemical characteristics of copper, it is easy to react with moist air, resulting in poor corrosion resistance. The hardness is also poor, which will also affect the consistency of its nano-powder morphology, which greatly limits the industrialization and commercial application of i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C45/00C23C14/18C23C14/20C23C14/35
CPCC22C45/001C23C14/185C23C14/205C23C14/35
Inventor 谭志
Owner VITALNK IND SHENZHEN
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