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Color changing method of artificial sapphire crystal

A sapphire crystal and artificial technology, which is applied in the field of color changing of artificial sapphire crystals, can solve the problems of high temperature diffusion treatment method, high equipment requirements, high cost, complicated operation, etc., and achieves the effects of low cost, reduced equipment requirements, and uniform color.

Active Publication Date: 2017-05-10
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the high-temperature diffusion treatment method has not been widely developed because of its high equipment requirements, complicated operation and high cost.

Method used

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  • Color changing method of artificial sapphire crystal
  • Color changing method of artificial sapphire crystal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for changing the color of a sapphire crystal through ion diffusion technology, the specific process flow is as follows:

[0018] (1) Cleaning: First, the cut artificial sapphire crystal sample was ultrasonically cleaned for 10 minutes, then soaked in 10% dilute acetic acid solution for 30 minutes, and finally rinsed with deionized water and dried.

[0019] (2) Surface activation treatment: Put the sample cleaned in step 1 into the concentration of 1×10 -4 mol / L Surfactant C 16 G(EO) 3 Soak in PB (hexadecyloxyethylene ether hydroxypropyl carboxybetaine) solution for 2 hours, then rinse with deionized water and dry.

[0020] (3) sample preparation: the medicine used in this example is fluorite: alumina: boron trioxide: water glass: cobalt oxide=20%: 25%: 25%: 20%: 10% by mass fraction Proportionally weigh, mix and stir well.

[0021] (4) Spin-coating: Add the mixed medicine to a certain amount of absolute ethanol, put it on a magnetic stirrer to prepare a sus...

Embodiment 2

[0026] A method for changing the color of a sapphire crystal through ion diffusion technology, the specific process flow is as follows:

[0027] (1) Cleaning: First, the cut artificial sapphire crystal sample was ultrasonically cleaned for 10 minutes, then soaked in 10% dilute acetic acid solution for 30 minutes, and finally rinsed with deionized water and dried.

[0028] (2) Surface activation treatment: Put the sample cleaned in step 1 into the concentration of 1×10 -4 mol / L Surfactant C 16 G(EO) 3 Soak in PB (hexadecyloxyethylene ether hydroxypropyl carboxybetaine) solution for 4 hours, then rinse with deionized water and dry.

[0029] (3) Sample preparation: the medicine used in this example is fluorite: alumina: boron trioxide: water glass: chromium oxide = 25%: 20%: 25%: 20%: 10% by mass fraction Proportionally weigh, mix and stir well.

[0030] (4) Spin-coating: Add the mixed medicine to a certain amount of absolute ethanol, put it on a magnetic stirrer to prepare a...

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Abstract

The invention discloses a color changing method of an artificial sapphire crystal. According to the method disclosed by the invention, coloring ions are dispersed into the artificial sapphire crystal through a relatively low temprature heat treatment technology, so that the color and the transparency of the sapphire crystal are improved. When the sapphire crystal treated by the method disclosed by the invention, colorless sapphire crystals can be changed into crystals with a plurality of colors, the color and luster are uniform and the transparency is better; According to the method, the treatment process is simple and equipment is simple, and the pollution to the environment is avoided. The ornamental value and the market economic value of sapphires treated by the method can be greatly improved.

Description

technical field [0001] The invention belongs to the technical field of color changing of sapphire crystals, and relates to a color changing method of artificial sapphire crystals, that is, the color-causing ions are diffused into the sapphire crystals through high-temperature heat treatment technology, so as to achieve the purpose of color changing of sapphires. Background technique [0002] Sapphire (Sapphire) is a general name for corundum gemstones of other colors except ruby ​​(Ruby), and the main component is aluminum oxide (Al 2 o 3 ), belonging to the trigonal crystal system, and the crystal form is often cylindrical, short columnar, plate-like, etc. The geometry of sapphire crystals is mostly granular or dense block, transparent to translucent, with vitreous luster. Due to the scarcity of natural sapphire production, the price is also very expensive. However, sapphire is not only a rare jewel, but also the main material of many photosensitive devices. In the curr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B31/04
CPCC30B31/04
Inventor 陈贵锋罗文博张辉解新建陶俊光
Owner HEBEI UNIV OF TECH
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