CN109761579A

CN109761579A - High-refractive, high-density colored synthetic gemstones

Info

Publication number: CN109761579A
Application number: CN201910232959.0A
Authority: CN
Inventors: 刘峰; 龙素琼; 尹跃
Original assignee: Chengdu Qicai Jewelry Co Ltd
Current assignee: Chengdu Qicai Glass Products Co.,Ltd.
Priority date: 2019-03-26
Filing date: 2019-03-26
Publication date: 2019-05-17
Anticipated expiration: 2039-03-26
Also published as: CN109761579B

Abstract

本发明公开了高折射、高密度彩色人造宝石，所述人造宝石的组成成分包括：BaO：16％～30％；La₂O₃：15％～55％；SiO₂：5％～25％；B₂O₃：5％～18％；辅料：0～12％。本发明通过改进配方，利于合成最佳氧化镧、氧化钡共熔体物相，使产品具有高折射率、高密度和高韧性等优异特性，宝石整体颜色鲜艳、均匀。The invention discloses a high-refractive, high-density colored artificial gemstone, and the composition of the artificial gemstone includes: BaO: 16%-30%; La ₂ O ₃ : 15%-55%; SiO ₂ : 5%-25%; B ₂ O ₃ : 5%～18%; Excipients: 0～12%. By improving the formula, the invention facilitates the synthesis of the best lanthanum oxide and barium oxide co-melt phase, so that the product has excellent characteristics such as high refractive index, high density and high toughness, and the overall color of the gemstone is bright and uniform.

Description

Height refraction, high density colour synthetic jewel

Technical field

The present invention relates to technical field of ornaments, and in particular to it is a kind of it is high refraction, high density colour synthetic jewel.

Background technique

Natural gemstone is the spirit that the mankind dote on always, and with the progress of human material's civilization, living standard is generally mentioned Height, the demand to natural gemstone is more and more, but often yield is rare for natural gemstone, expensive, is unable to satisfy popular Demand.

Artificial synthesized jewel (referred to as artificial gem) is for natural gemstone, is to alleviate natural gemstone and supplying It needs contradiction and generates and develop, be the jewel of manual manufacture and non-natural output.According to relevant regulations, the definition of artificial gem Are as follows: it is used as the materials of jewellery and ornament by manually producing or manufacturing completely or partially and is referred to as artificial gem.Popular understanding Be: artificial gem refers to that people use the basic principle and method of modern science and technology, selects suitable raw material, passes through conjunction The technique of reason, techniqueflow, what is manufactured in laboratory or factory is used as the material of jewellery and ornament.It is existing at present Although artificial synthesized jewel price is lower with respect to the price of natural gemstone, compared with natural gemstone, jewel characteristic is reacted Performance indicator it is poor, be not able to satisfy people to the higher demand of ornaments.

Summary of the invention

The technical problems to be solved by the present invention are: although existing artificial synthesized jewel price is with respect to natural gemstone at present It is lower, but compared with natural gemstone, the performance indicator for reacting jewel characteristic is poor, is not able to satisfy people to the higher of ornaments Demand.

The present invention is achieved through the following technical solutions:

Height refraction, high density colour synthetic jewel, the constituent of the synthetic cut stone include:

BaO:16%~30%；

La₂O₃: 15%~55%；

SiO₂: 5%~25%；

B₂O₃: 5%~18%；

Auxiliary material: 0~12%.Artificial synthesized jewel provided by the invention is the eutectic structure of above-mentioned each oxide.

Further, the constituent of the synthetic cut stone includes:

BaO:19%~28%；

La₂O₃: 24%~48%；

SiO₂: 10%~23%；

B₂O₃: 7%~16%；

Auxiliary material: 2~9%.

Further, the constituent of the synthetic cut stone includes:

BaO:25%；

La₂O₃: 39%；

SiO₂: 19%；

B₂O₃: 12%；

Auxiliary material: 5%.

Further, the BaO and La₂O₃Molal weight ratio is 0.62~4.25.

Further, the auxiliary material includes fluxing agent and colorant.

Further, the colorant includes the metal oxide of erbium, neodymium, copper, cobalt, gold, nickel, chromium.

The present invention has the advantage that and the utility model has the advantages that

1, the present invention provides a kind of colour synthetic jewel, barium monoxide and the fusible formation low temperature eutectics of lanthana to constitute The main object phase of jewel, the main object mutually belong to high molecular weight oxide, can ensure that its density closer to natural gemstone；The present invention is logical It crosses improvement formula and is conducive to synthesis optimum oxidation lanthanum, barium monoxide eutectic object phase, make product that there is high refractive index, high density and high-ductility Excellent characteristics, the jewel integral colors such as property are bright-coloured, uniform；

2, the present invention provides a kind of colour synthetic jewel, diboron trioxide forms time object phase with silica in jewel, Silica mutually has stabilization to principal goods, such as inhibits crystallization, improves melt viscosity, is easily molded, and has with colorant Excellent integration and coloring effect；

3, the present invention provides a kind of colour synthetic jewels, the jewel obtained by improving formula, to be conducive to further Refractive index and density are improved, and is conducive to reduce energy consumption and cost；This is because can increase in high-temperature fusion process to container Erosion and generate the impurity such as calculus, bubble, influence the performance of jewel.

Specific embodiment

To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment, the present invention is made Further to be described in detail, exemplary embodiment of the invention and its explanation for explaining only the invention, are not intended as to this The restriction of invention.

Embodiment 1

Present embodiments provide it is a kind of it is high refraction, high density colour synthetic jewel, the constituent of the synthetic cut stone are as follows:

BaO:30%；

La₂O₃: 15%；

SiO₂: 25%；

B₂O₃: 18%；

Auxiliary material: 12%.

The BaO and La₂O₃Molal weight ratio is 4.25；The auxiliary material is Cr₂O₃Colorant 9%, it is emerald green to generate Jewel；Fluxing agent uses 1% Na₂The K of O and 2%₂O。

The processing process of synthetic cut stone is successively are as follows: raw material weighing, is added auxiliary material, melts, is cast into raw material mixing Type heat preservation to room temperature, anneals, is cooled to room temperature, and the final finished product that obtains is for processing；Melting temperature is 1300 °~1370 °；It is former Material is the corresponding oxide of each metallic element, carbonate, nitrate etc..

Embodiment 2

The present embodiment the difference from embodiment 1 is that: the constituent of the artificial synthesized jewel are as follows:

BaO:16%；

La₂O₃: 55%；

SiO₂: 18%；

B₂O₃: 11%；

The BaO and La₂O₃Molal weight ratio is 0.62.

Embodiment 3

BaO:28%；

La₂O₃: 24%；

SiO₂: 23%；

B₂O₃: 16%；

Auxiliary material: 9%.

The BaO and La₂O₃Molal weight ratio is 2.48.

Embodiment 4

BaO:19%；

La₂O₃: 48%；

SiO₂: 16%；

B₂O₃: 11%；

Auxiliary material: 6%.

The BaO and La₂O₃Molal weight ratio is 0.84.

Embodiment 5

BaO:25%；

La₂O₃: 39%；

SiO₂: 19%；

B₂O₃: 12%；

Auxiliary material: 5%.

The BaO and La₂O₃Molal weight ratio is 1.36.

Comparative example 1

The difference of this comparative example and embodiment 5 is:

BaO:49%；

La₂O₃: 15%；

SiO₂: 19%；

B₂O₃: 12%；

Auxiliary material: 5%.

The BaO and La₂O₃Molal weight ratio is 6.9.

Comparative example 2

The difference of this comparative example and embodiment 5 is:

BaO:10%；

La₂O₃: 54%；

SiO₂: 19%；

B₂O₃: 12%；

Auxiliary material: 5%.

The BaO and La₂O₃Molal weight ratio is 0.39.

Comparative example 3

The difference of this comparative example and embodiment 5 is:

CaO:25%；

CeO₂: 39%；

SiO₂: 19%；

B₂O₃: 12%；

Auxiliary material: 5%.

The CaO and CeO₂Molal weight ratio is 3.0.

Comparative example 4

The difference of this comparative example and embodiment 5 is:

BaO:16%；

La₂O₃: 23%；

SiO₂: 26%；

B₂O₃: 21%；

Auxiliary material: 14%.

The BaO and La₂O₃Molal weight ratio is 1.48.

Performance test:

One, test method

1, refractive index detection method:

It is detected by method as defined in National Standard of the People's Republic of China GB/T7962.

2, Density Detection method:

Two, test result

To refractive index, density and dispersion values the test result such as table 1 of sample prepared by each comparative example of Examples 1 to 5 1~4 It is shown,

Table 1, the performance test results of sample prepared by each each comparative example 1~4 of Examples 1 to 5

Sample	Refractive index	Density (g/cm³)
			Embodiment 1	1.72	3.80
Embodiment 2	1.75	3.84
			Embodiment 3	1.81	3.86
Embodiment 4	1.86	3.90
			Embodiment 5	1.90	3.93
Comparative example 1	1.61	3.72
			Comparative example 2	1.63	3.74
Comparative example 3	1.54	3.65
			Comparative example 4	1.66	3.78

In conclusion the present invention is had the advantage that by improving the artificial synthesized jewel that formula provides

1, with 10 times or more of amplification sem observation, without flocculence, netted or tree root shape inclusion enclave and small crack in jewel, Bubble-free.

2, refractive index is high:

The refractive index of artificial gem provided by the invention is up to 1.72~1.90, exist inside jewel provided by the invention compared with Few free electron and free from admixture, inclusion enclave etc. influence, transparency is higher, and gemstone surface and bright interior degree are uniform, gloss compared with By force.

3, density is high:

The density of artificial gem provided by the invention is up to 3.80~3.93g/cm³, the density of jewel is bigger, is conducive to polishing Process operation；Finer and close inside jewel, the jewel finished surface polished is more smooth, and natural degree of reflection is just high, also brighter.

4, toughness is high:

Artificial gem toughness provided by the invention is higher, have the preferable property pondered and can polishability, processing performance is excellent； In facet type or cabochon process, it is less prone to the bad phenomenons such as crackle, difficulty of processing relative reduction.

5, bright-colored uniform:

Also show jewel free from admixture provided by the present application or fault of construction and other issues indirectly.

Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include Within protection scope of the present invention.

Claims

1. high-refractive, high-density colored artificial gemstone, is characterized in that, the composition of described artificial gemstone comprises:

BaO: 16%～30%;

La ₂ O ₃ : 15%～55%;

SiO ₂ : 5%～25%;

B ₂ O ₃ : 5%～18%;

Excipients: 0～12%.

2. high-refractive, high-density colored artificial gemstone according to claim 1, is characterized in that, the composition of described artificial gemstone comprises:

BaO: 19%～28%;

La ₂ O ₃ : 24% to 48%;

SiO ₂ : 10%～23%;

B ₂ O ₃ : 7%～16%;

Excipients: 2 to 9%.

3. high-refractive, high-density colored artificial gemstone according to claim 2, is characterized in that, the composition of described artificial gemstone comprises:

BaO: 25%;

La ₂ O ₃ : 39%;

SiO ₂ : 19%;

B ₂ O ₃ : 12%;

Excipients: 5%.

4 . The high-refractive, high-density colored artificial gemstone according to claim 1 , wherein the molar mass ratio of BaO and La ₂ O ₃ is 0.62-4.25. 5 .

5. The high-refractive, high-density colored artificial gemstone according to claim 1, wherein the auxiliary material comprises a flux and a colorant.

6. The high-refractive, high-density colored synthetic gemstone of claim 5, wherein the colorant comprises metal oxides of erbium, neodymium, copper, cobalt, gold, nickel, and chromium.