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Imitated jewel photochromic glass with excellent performance, and preparation method and application thereof

A technology for color-changing glass and imitation gemstones, applied in glass manufacturing equipment, glass molding, manufacturing tools, etc., can solve the problem of expensive gemstones, and achieve the effects of good chemical stability, low lead content, and low production costs.

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

But currently, stones with obvious color-changing effects are rare and very expensive

Method used

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  • Imitated jewel photochromic glass with excellent performance, and preparation method and application thereof
  • Imitated jewel photochromic glass with excellent performance, and preparation method and application thereof
  • Imitated jewel photochromic glass with excellent performance, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] The imitation jewel color-changing glass of the present embodiment is made of the following raw materials: by weight, silicon dioxide SiO 2 47 parts potassium carbonate K 2 CO 3 22.5 parts, sodium nitrate NaNO 3 32.5 parts, neodymium trioxide Nd 2 o 3 9 parts, praseodymium oxide Pr 6 o 11 4 parts, borax Na 2 B 4 o 7 10H 2 O 8 parts, barium oxide BaO 5 parts, lead oxide PbO 0 parts, aluminum oxide Al 2 o 3 1.5 parts, 1 part of zinc oxide ZnO.

[0065] Preparation:

[0066] 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 annealing quickly, the annealing tempe...

Embodiment 2

[0075] The imitation jewel color-changing glass of the present embodiment is made of the following raw materials: by weight, silicon dioxide SiO 2 48 parts potassium carbonate K 2 CO 3 25 parts, sodium nitrate NaNO 3 27 parts, neodymium trioxide Nd 2 o 3 9 parts, praseodymium oxide Pr 6 o 11 2.5 parts, borax Na 2 B 4 o 7 10H 2 O 6.5 parts, barium oxide BaO 6 parts, lead oxide PbO 0 parts, aluminum oxide Al 2 o 3 2 parts, 1 part of zinc oxide ZnO.

[0076] Preparation:

[0077] 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 to melt the glass, and keep the temperature for 1-4 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, the annealing tempera...

Embodiment 3

[0082] The imitation jewel color-changing glass of the present embodiment is made of the following raw materials: by weight, silicon dioxide SiO 2 47.5 parts, potassium carbonate K 2 CO 3 21 parts, sodium nitrate NaNO 3 26 parts, neodymium trioxide Nd 2 o 3 9.5 parts, praseodymium oxide Pr 6 o 11 5 parts, borax Na 2 B 4 O7·10H 2 O 6 parts, barium oxide BaO 3.5 parts, lead oxide PbO 3 parts, aluminum oxide Al 2o 3 2 parts, 1 part of zinc oxide ZnO.

[0083] Preparation:

[0084] Grind the above raw materials and uniformly 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 1450° C. at a heating rate of 10° C. / min, and kept for 3.5 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, the annealing te...

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Abstract

The invention relates to an imitated jewel photochromic glass. The imitated jewel photochromic glass comprises, by weight, 30-60 parts of silicon dioxide (SiO2); 5-20 parts of rare earth element oxide; and 0.5-3 parts of aluminum oxide (Al2O3). The imitated jewel photochromic glass has a photochromic effect, the hue difference delta h0 is 20 degrees or above, and the obvious red-green discoloration phenomenon can be observed by naked eyes. The imitated jewel photochromic glass is green or green with yellow color under natural light (D65 light source) due to doping of rare earth elements, is red or red with brown color under an incandescent lamp (A light source), and is in various transition colors between the red color and the green color under a mixed light source. In addition, the invention also provides a preparation method and application of the imitated jewel photochromic glass.

Description

technical field [0001] The invention relates to the technical field of artificial gemstones, in particular to a gemstone-like color-changing glass with excellent performance and a preparation method and application thereof. Background technique [0002] Colored gemstones, especially high-quality color-changing gemstones, are mineral resources with high value and strong market demand but extremely rare natural production. They are also relatively scarce gemstone resources in my country. In recent years, gem-like color-changing glass has received widespread attention as an alternative material for precious natural color-changing gemstones. It is one of the long-term sustainable solutions to the imbalance between supply and demand of natural color-changing gemstones, and it is also the focus of research in the field of artificial gemstones worldwide. [0003] The color-changing effect, size, transparency and blemishes of color-changing gemstones are the main factors affecting t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C4/00C03C3/095C03C1/00C03B19/02
CPCC03C4/00C03C3/095C03C1/00C03B19/02Y02P40/57
Inventor 张思奇濮俊缘王顺军李克庆
Owner UNIV OF SCI & TECH BEIJING
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