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Large-size artificial aluminum oxide-doped colored gemstones and production method thereof

A technology of alumina and large size, which is applied in the field of large-scale artificial alumina-doped colored gemstones and its production. It can solve the problems of too small volume of colored gemstones, easy cracks, poor color, etc., and solve the problem of high proportion of air bubbles. , the burst rate is reduced, and the color is bright

Inactive Publication Date: 2020-01-03
CHONGQING SILIAN OPTOELECTRONICS SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a large-scale artificial alumina-doped sapphire and its production method, which is used to solve the problem of the small volume, poor color, and many bubbles of colored gemstones in the prior art. , prone to cracks and other problems

Method used

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  • Large-size artificial aluminum oxide-doped colored gemstones and production method thereof
  • Large-size artificial aluminum oxide-doped colored gemstones and production method thereof
  • Large-size artificial aluminum oxide-doped colored gemstones and production method thereof

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Effect test

Embodiment 1

[0045] In the production of sapphire in this embodiment, the equipment type of the pulling furnace is UNC120, and an iridium crucible is selected, and copper coil induction heating is used to heat up, adjust temperature, grow, and cool down the raw materials and doping elements.

[0046] The raw material composition of sapphire is as follows: purity 99.99% block Al 2 o 3 , purity 99.99% powdered Fe 2 o 3 , purity 99.9% powdered Ti 2 o 3 , Fe 2 o 3 The weight accounted for Al 2 o 3 5‰ of weight, Ti 2 o 3 The weight accounted for Al 2 o 3 1‰ of weight, Al 2 o 3 It is block transparent raw material of flame method.

[0047] The production method comprises the following steps:

[0048] 1) Furnace loading: Clean the furnace and furnace shell of the equipment, check the insulation performance of the furnace and insulation bricks, adjust the position of the crucible to ensure that the crucible is stable and in the middle of the furnace; charge according to the designed...

Embodiment 2

[0057] In this embodiment, sapphire is produced. The equipment model of the pulling furnace is AJAX-PACERS. The iridium crucible is selected, and the copper coil induction heating is used to perform the steps of heating, temperature adjustment, growth, and cooling of raw materials and doping elements.

[0058] The raw material composition of sapphire is as follows: purity 99.99% block Al 2 o 3 , purity 99.9% powdered Fe 2 o 3 , purity 99.9% powdered Ti 2 o 3 , Fe 2 o 3 The weight accounted for Al 2 o 3 5‰ of weight, Ti 2 o 3 The weight accounted for Al 2 o 3 0.7‰ of weight, Al 2 o 3 It is block transparent raw material of flame method.

[0059] The production method comprises the following steps:

[0060] 1) Furnace loading: Clean the furnace and furnace shell of the equipment, check the insulation performance of the furnace and insulation bricks, adjust the position of the crucible to ensure that the crucible is stable and in the middle of the furnace; charge a...

Embodiment 3

[0066] In this embodiment, red gemstones are produced. The equipment model of the pulling furnace is AJAX. The iridium crucible is selected, and the copper coil induction heating is used to perform the heating, temperature adjustment, growth, and cooling steps of the raw materials and doping elements.

[0067] The raw material composition of sapphire is as follows: purity 99.99% block Al 2 o 3 , purity 99.95% powdered Cr 2 o 3 , purity 99.9% powdered Ti 2 o 3 , Cr 2 o 3 The weight accounted for Al 2 o 3 5‰ of weight, Ti 2 o 3 The weight accounted for Al 2 o 3 0.5‰ of weight, Al 2 o 3 It is block transparent raw material of flame method.

[0068] The production method comprises the following steps:

[0069] 1) Furnace loading: Clean the furnace and furnace shell of the equipment, check the insulation performance of the furnace and insulation bricks, adjust the position of the crucible to ensure that the crucible is stable and in the middle of the furnace; charge ...

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Abstract

The invention provides large-size artificial aluminum oxide-doped colored gemstones and a production method thereof. The colored gemstones comprise the following raw materials: Al2O3 and coloring elements. According to the method, the colored gemstone raw material formula is reasonably designed, large-size colored gemstones with different colors are obtained through a pulling process, so that thegemstones are bright in color; and through cutting and processing, materials of different parts can be used to prepare various industrial supplies, accessories and jewelry.

Description

technical field [0001] The invention relates to the technical field of gemstone production, in particular to a large-sized artificial alumina-doped colored gemstone and a production method thereof. Background technique [0002] The pulling method is a method of pulling and growing crystals from a melt, which was pioneered by Czochralski in 1918, referred to as the CZ method. In 1964, Poladino and Rotter first applied the CZ method to the growth of sapphire single crystals, and successfully grew high-quality sapphire crystals. The crystal growth diagram of the CZ method is shown in figure 1 shown. The raw material is first heated to the melting point and then melted to form a molten soup, and then a single crystal seed is used to contact the surface of the molten soup, and supercooling is formed at the solid-liquid interface between the seed crystal and the molten soup due to the temperature difference. Then the molten soup starts to solidify on the surface of the seed crys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B15/00C30B29/20
CPCC30B15/00C30B29/20
Inventor 杨明远
Owner CHONGQING SILIAN OPTOELECTRONICS SCI & TECH
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