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Amorphous alloy with spontaneous discoloration on the surface, its preparation method and application

A technology of amorphous alloys and amorphous alloys, applied in the field of amorphous alloys, can solve problems such as difficulty in meeting large-scale requirements, and achieve the effect of bright color and wide range of components

Active Publication Date: 2022-02-18
INST OF PHYSICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, limited by cost, efficiency and stability, the existing methods such as nitrogen doping, laser lithography nanostructure, and electroplating oxidation are difficult to meet the needs of large-scale and mass production of colored amorphous alloys with complex shapes. An amorphous alloy with full color, low cost, adjustable composition range suitable for any complex shape and maintaining intrinsic excellent mechanical properties

Method used

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  • Amorphous alloy with spontaneous discoloration on the surface, its preparation method and application
  • Amorphous alloy with spontaneous discoloration on the surface, its preparation method and application
  • Amorphous alloy with spontaneous discoloration on the surface, its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0087] This example is used to illustrate the preparation method of the amorphous alloy of the present invention.

[0088] Select high-purity Ce, Al, Cu, Co, and Y pure elements (the purity of the main element is above 99%, and the purity of the auxiliary element is above 99.9 or 99.99%), and the configuration is based on the atomic percentage (Ce 69 Al 10 Cu 20 co 1 ) 95 Y 5 , the glass transition temperature is 351K, and the surface oxide layer is removed mechanically. In the electric arc furnace with argon atmosphere adsorbed by titanium, the mechanical pump is used first, and then the molecular pump is used to vacuum the cavity, and the vacuum degree is better than 3×10 -3 Pa, 150A to start the arc, then increase the current to 200A, smelt for 30-60 seconds, after cooling, turn over, repeatedly smelt four times to form an ingot, and then induction smelt and throw the belt, the induction smelting current is 18A, use the mechanical pump first, and then the molecular Th...

Embodiment 2

[0091] This example is used to illustrate the preparation method of the amorphous alloy of the present invention.

[0092] Prepared by the method in Example 1 (Ce 69 Al 10 Cu 20 co 1 ) 99.5 Y 0.5 Amorphous alloy ribbon with a glass transition temperature of 355K. The prepared (Ce 69 Al 10 Cu 20 co 1 ) 99.5 Y 0.5 The amorphous alloy strips were ultrasonically cleaned in alcohol for 5 minutes, then dried, and left to stand in air at room temperature. The sample processing temperature corresponds to 0.84 times the glass transition temperature of the system. After several days, use an optical microscope to take pictures to confirm that the color of the amorphous alloy strips is as follows: Figure 5 shown.

Embodiment 3

[0094] This example is used to illustrate the preparation method of the amorphous alloy of the present invention.

[0095] Prepared by the method in Example 1 (Ce 65 Al 10 Cu 20 co 5 ) 99.5 Y 0.5 Amorphous alloy ribbon with a glass transition temperature of 345K. Put the prepared amorphous alloy strip into alcohol and ultrasonically clean it for 5 minutes, then blow it dry, and let it stand in air at room temperature. The sample processing temperature corresponds to 0.86 times the glass transition temperature of the system. After 256 days, use an optical microscope to take pictures to confirm that the color of the amorphous alloy strips is as follows: Figure 6 shown.

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Abstract

The present invention provides a kind of amorphous alloy whose surface changes color spontaneously. , lanthanide base and other amorphous alloys doped with active elements, such as Na, K, Rb, Mg, Ca, Sr, Ga, Zn, Sc, Y, lanthanides, the amorphous alloy can spontaneously Oxidative discoloration and color in the visible region. It also provides its preparation method and application. The material of the present invention can spontaneously produce and change color on the surface in the air (or oxygen-containing atmosphere) at room temperature (or at a certain sample processing temperature). Its color is uniform, bright, covers the entire visible light region, and is self-healing. By changing the composition and ratio of doping elements and adjusting the sample processing temperature and oxygen content, the color change rate can be effectively predicted and regulated. The method is applicable to all amorphous alloy components, and the required manufacturing equipment is low in cost and can be mass-produced.

Description

technical field [0001] The invention belongs to the field of amorphous alloys, in particular to an amorphous alloy whose surface changes color spontaneously, its preparation method and application. Background technique [0002] Amorphous alloy is a typical metastable material, which has attracted much attention due to its excellent physical and chemical properties such as high elasticity, high strength, high toughness and high wear resistance. It has been widely used in sports equipment, electronic products, coatings, etc. Applications in materials and acoustic materials. In application, in addition to service performance, the aesthetic design of materials also needs special attention, because it can increase the added value of products and meet the different aesthetic needs of consumers. Material shading is the simplest aesthetic design, and it is the basis for complex designs such as patterns and logos. Currently, there is a huge demand for colored amorphous alloy materi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C45/00C22C1/02
CPCC22C45/00C22C1/02C22C1/11
Inventor 王朋飞孙永昊白海洋汪卫华
Owner INST OF PHYSICS - CHINESE ACAD OF SCI