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Imitated color sapphire glass, and preparation method and application thereof

A sapphire glass and color technology, applied in glass manufacturing equipment, glass molding, manufacturing tools, etc., can solve the problems of imitation colored sapphire that have not been reported, and achieve stable spectral characteristics and coloring effects, low production costs, and stable valence The effect of constant price

Active Publication Date: 2021-12-21
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The imitation sapphire glass studied at present is mostly the glass of imitation blue sapphire, and the glass of imitation colored sapphire (such as padparadscha sapphire or yellow sapphire) has not been reported.

Method used

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  • Imitated color sapphire glass, and preparation method and application thereof
  • Imitated color sapphire glass, and preparation method and application thereof
  • Imitated color sapphire glass, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] The imitative colored sapphire glass of the present embodiment is made of the following raw materials: by weight, silicon dioxide SiO 2 41 parts potassium carbonate K 2 CO 3 22.5 parts, sodium nitrate NaNO 3 35 parts, diyttrium trioxide Y 2 o 3 11.5 parts, holmium trioxide Ho 2 o 3 10 parts, borax Na 2 B 4 o 7 10H 2 O 5.5 parts, barium oxide BaO 4 parts, ferric oxide Fe 2 o 3 1 part, arsenic trioxide As 2 o 3 1 part, aluminum oxide Al 2 o 3 1.5 parts, zinc oxide ZnO 1 part.

[0070] Preparation:

[0071] Grind the above raw materials and evenly mix them into a batch, and put the batch into a platinum-rhodium alloy crucible. Afterwards, the platinum-rhodium alloy crucible was placed in a high-temperature electric furnace and heated to a melting temperature of 1650° C. at a heating rate of 15° C. / min, and kept for 1 hour to obtain a melt. After pouring the molten body into the cast iron mold, put it into the heat preservation electric furnace for...

Embodiment 2

[0080] The imitative colored sapphire glass of the present embodiment is made of the following raw materials: by weight, silicon dioxide SiO 2 40 parts potassium carbonate K 2 CO 3 24 parts, sodium nitrate NaNO 3 37.5 parts, diyttrium trioxide Y 2 o 3 10 parts, holmium trioxide Ho 2 o 3 10.5 parts, borax Na 2 B 4 o 7 10H 2 O 6 parts, barium oxide BaO 3.5 parts, ferric oxide Fe 2 o 3 1.5 parts, arsenic trioxide As 2 o 3 0.5 parts, aluminum oxide Al 2 o 3 1 part, zinc oxide ZnO 1 part.

[0081] Preparation:

[0082] Grind the above raw materials and evenly mix them into a batch, and put the batch into a platinum-rhodium alloy crucible. Afterwards, the platinum-rhodium alloy crucible was put into a high-temperature electric furnace and heated to a melting temperature of 1600° C. at a heating rate of 10° C. / min, and kept for 1.5 hours to obtain a melt. After pouring the molten body into the cast iron grinding mold, put it into the heat preservation electric ...

Embodiment 3

[0088] The imitative colored sapphire glass of the present embodiment is made of the following raw materials: by weight, silicon dioxide SiO 2 43.5 parts, potassium carbonate K 2 CO 3 22 parts, sodium nitrate NaNO 3 28.5 parts, diyttrium trioxide Y 2 o 3 7 parts, holmium trioxide Ho 2 o 3 10 parts, borax Na 2 B 4 o 7 10H 2 O 7 parts, barium oxide BaO 4 parts, ferric oxide Fe 2 o 3 1 part, arsenic trioxide As 2 o 3 0.5 parts, aluminum oxide Al 2 o 3 2 parts, zinc oxide ZnO 1 part.

[0089] Preparation:

[0090] Grind the above raw materials and evenly mix them into a batch, and put the batch into a corundum crucible. Afterwards, put the corundum crucible into a high-temperature electric furnace and heat it to a melting temperature of 1400°C at a heating rate of 5°C / min, and keep the temperature for 4 hours to obtain a melt. After pouring the molten body into the cast iron mold, put it into the heat preservation electric furnace for annealing quickly, t...

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Abstract

The invention relates to an imitated color sapphire glass. The imitated color sapphire glass comprises, by weight, 30-60 parts of silicon dioxide (SiO2); 2-40 parts of rare earth element oxide; and 0.1-3 parts of ferric oxide (Fe2O3). The imitated color sapphire glass has a color changing effect, presents orange with red tone under natural light, presents golden yellow under an incandescent lamp, and presents various transition colors from yellow to red, such as yellow, yellow-orange, orange pink to orange brown, under a mixed light source. The imitated color sapphire glass is stable in coloring effect, combined coloring ions (namely yttrium ions, holmium ions and iron ions) exist in the glass in the forms of Y<3+>, Ho<3+> and Fe<3+>, the valence state is stable and does not change, and the spectral characteristic and the coloring effect are very stable and are not influenced by glass components and a melting process. In addition, the invention also relates to a preparation method and application of the imitated color sapphire glass.

Description

technical field [0001] The invention relates to the technical field of artificial gemstones, in particular to an imitation colored sapphire glass and its preparation method and application. Background technique [0002] Sapphire is a general term for corundum gems of other colors except ruby ​​(Ruby), the main component of which is aluminum oxide (Al 2 o 3 ). In addition to the beautiful blue color, sapphires also have a huge offshoot - colored sapphires, which includes all corundum gemstones except red and blue. Colored sapphires can be pink, yellow, green, or purple in color, and even the same stone can have multiple colors. Padparadscha sapphire (English name Padparadscha) is a special kind of natural sapphire. Its color is generally orange with a hint of pink. and sought after. Yellow sapphires are also very popular gemstones. The colors include light yellow, canary yellow, golden yellow, honey yellow and whiskey yellow, of which golden yellow is the best. [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C6/04C03C4/02C03C1/04C03B19/02
CPCC03C1/00C03C4/02C03C1/04C03B19/02
Inventor 张思奇濮俊缘王顺军李克庆
Owner UNIV OF SCI & TECH BEIJING
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