CN114751630A - Fluorescent glass preparation method based on gel casting technology - Google Patents
Fluorescent glass preparation method based on gel casting technology Download PDFInfo
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- 239000011521 glass Substances 0.000 title claims abstract description 83
- 238000005516 engineering process Methods 0.000 title claims abstract description 23
- 238000005266 casting Methods 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000000843 powder Substances 0.000 claims abstract description 78
- 238000000034 method Methods 0.000 claims abstract description 22
- 150000004767 nitrides Chemical class 0.000 claims abstract description 18
- 239000002002 slurry Substances 0.000 claims abstract description 18
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000000498 ball milling Methods 0.000 claims abstract description 15
- 235000015895 biscuits Nutrition 0.000 claims abstract description 13
- 238000009877 rendering Methods 0.000 claims abstract description 13
- 238000005245 sintering Methods 0.000 claims abstract description 13
- 150000004645 aluminates Chemical class 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 8
- 230000017525 heat dissipation Effects 0.000 claims abstract description 8
- 238000005498 polishing Methods 0.000 claims abstract description 8
- 239000011268 mixed slurry Substances 0.000 claims abstract description 7
- 239000007787 solid Substances 0.000 claims abstract description 4
- 229910021642 ultra pure water Inorganic materials 0.000 claims abstract description 3
- 239000012498 ultrapure water Substances 0.000 claims abstract description 3
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 18
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 8
- 229910016064 BaSi2 Inorganic materials 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 1
- 239000003292 glue Substances 0.000 claims 1
- 108010043121 Green Fluorescent Proteins Proteins 0.000 abstract description 2
- 239000011230 binding agent Substances 0.000 abstract 1
- 239000000499 gel Substances 0.000 description 19
- 239000000243 solution Substances 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 238000005286 illumination Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 238000009776 industrial production Methods 0.000 description 3
- 238000012536 packaging technology Methods 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010382 chemical cross-linking Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/02—Other methods of shaping glass by casting molten glass, e.g. injection moulding
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C12/00—Powdered glass; Bead compositions
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C4/00—Compositions for glass with special properties
- C03C4/12—Compositions for glass with special properties for luminescent glass; for fluorescent glass
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Luminescent Compositions (AREA)
- Glass Compositions (AREA)
Abstract
The application discloses a fluorescent glass preparation method based on gel casting technology, which comprises the steps of adding aluminate yellow powder, nitride red powder, nitride green powder, glass powder and zirconia balls into 13-16 parts of ultrapure water, carrying out ball milling, then adding an Isobam gel system solution, and carrying out ball milling for 1-6 hours to obtain mixed slurry with high solid content and good fluidity; adding the mixed slurry into APS powder for ball milling again, and then putting the mixed slurry into a vacuum defoaming machine for defoaming; pouring the slurry subjected to bubble removal into a mold, and drying to obtain a fluorescent glass biscuit; carrying out binder removal, sintering and polishing treatment on the biscuit to obtain the special-shaped fluorescent glass with high color rendering index and high heat dissipation performance; the wet forming method is adopted to enable the fluorescent powder to be mixed more uniformly to obtain high-quality white light, yellow, red and green fluorescent powder is used for adjusting the phenomenon that the red light of the traditional fluorescent glass is insufficient, and the color rendering index is improved.
Description
Technical Field
The invention belongs to the technical field of fluorescent glass, and particularly relates to a preparation method of fluorescent glass based on a gel casting technology.
Background
As a solid semiconductor device capable of electro-optical conversion, an LED has been widely used because of its advantages in the field of illumination, such as high efficiency, low power consumption, long life, and low power consumption. In particular, "blue LED chip + yellow phosphor" is one of the important combination ways to realize white LED illumination. At present, LEDs are also widely used in backlight modules of liquid crystal televisions and the like.
However, the conventional packaging technology uses a phosphor dispensing packaging process. The biggest defect of the technology is that the epoxy resin or silica gel is poor in high temperature resistance and ultraviolet irradiation energy, the transparency and the refractive index of the dispensing layer are reduced, the lighting effect and the light intensity distribution of the device are influenced, and the service life of the white light LED is greatly shortened. Similarly, although the remote packaging technology can effectively solve the heat dissipation problem, there is an obvious problem that the surface of the phosphor layer is not an absolute plane, and is affected by the surface tension of the liquid, and the phosphor layer is often a concave curved surface, resulting in uneven illumination distribution. Therefore, fluorescent glass and fluorescent ceramic become new fluorescent conversion materials in remote packaging technology, and not only have the functions of packaging materials and fluorescent materials, but also have thermal stability and thermal conductivity much higher than the mixture of fluorescent powder and silica gel. However, the fluorescent ceramic has the disadvantages of low quantum conversion rate, low color rendering index and the like. The fluorescent glass has the advantages of high quantum conversion rate, easy adjustment of color development quality and the like, and is gradually applied to industrial production at present. However, the preparation of the special-shaped fluorescent glass is not easy and is only reported. Therefore, the application provides a brand-new method for preparing the fluorescent glass, namely the gel-casting fluorescent glass. The uniformity of the luminous efficiency of the fluorescent glass is effectively enhanced, the color rendering index is improved, and the heat dissipation performance of the special-shaped fluorescent glass is greatly improved due to the fact that the surface area of the special-shaped fluorescent glass is increased.
The prior research on a series of fluorescent glass, for example, patent CN 108503216 a discloses a preparation method of fluorescent glass and fluorescent glass, which is characterized in that a layer of 'ink' formed by mixing red fluorescent powder and organic matter is coated on the prepared LuAG fluorescent glass by using a spin coating technology, but the problem of the interface between the 'ink' and the fluorescent glass cannot be solved, and the organic matter is easy to decompose at high temperature and has no good thermal conductivity, so that the service life of the fluorescent glass is greatly shortened; patent CN 110627356 a discloses a preparation method of high-temperature resistant fluorescent glass for LED, fluorescent glass prepared by SPS plasma discharge sintering method has huge cost and is not suitable for large-scale industrial production, and fluorescent powder is only added with Ce: YAG yellow fluorescent powder with low color rendering index.
Disclosure of Invention
The technical problem to be solved is as follows:
aiming at the defects of the prior art, the problems that the prior epoxy resin or silica gel is poor in high temperature resistance and ultraviolet irradiation energy are solved, the transparency and the refractive index of a dispensing layer are reduced, the light efficiency and the light intensity distribution of a device are influenced, the service life of a white light LED is greatly shortened, the illumination distribution is uneven, the fluorescent ceramic has low quantum conversion rate and low color rendering index, the fluorescent glass prepared by the SPS plasma discharge sintering method is huge in cost and is not suitable for large-scale industrial production, and the fluorescent powder is only added with Ce: YAG yellow fluorescent powder, the technical problems of low color rendering index and the like are solved, a method for preparing fluorescent glass based on a gel injection molding technology is provided, special-shaped fluorescent glass with high color rendering index and strong heat dissipation performance is obtained, a method of 'blue LED chip and fluorescent glass' is adopted to generate high-quality white light, and the color rendering index and the heat dissipation performance of the special-shaped fluorescent glass are improved by preparing the special-shaped fluorescent glass.
The technical scheme is as follows:
in order to achieve the purpose, the application is realized by the following technical scheme:
a fluorescent glass preparation method based on gel casting technology specifically comprises the following steps:
step1, weighing 5.4-10.8 parts of aluminate yellow powder, 1.8-3.6 parts of nitride red powder, 1.8-3.6 parts of nitride green powder, 30 parts of glass powder, 1-2 parts of Isobam gel system solution, 0.5 part of Ammonium Persulfate (APS) and 60-90 parts of zirconia balls according to the mass part ratio;
step2, adding the aluminate yellow powder, the nitride red powder, the nitride green powder, the glass powder and the zirconia balls into 13-16 parts of ultrapure water, carrying out ball milling, then adding an Isobam gel system solution, and carrying out ball milling for 1-6h to obtain mixed slurry with high solid content and good fluidity;
step3, adding the mixed slurry into APS powder, ball-milling again, and placing the mixture into a vacuum defoaming machine for defoaming;
step4, pouring the slurry subjected to foam removal into a mold, and drying to obtain a fluorescent glass biscuit;
and Step5, carrying out degumming, sintering and polishing treatment on the biscuit to obtain the special-shaped fluorescent glass with high color rendering index and high heat dissipation performance.
Further, in Step1, the aluminate yellow powder in the raw material is Ce: YAG yellow powder and nitride red powder are (Sr, Ca) AlSiN3：Eu2+Red powder, green nitride powder is BaSi2O2N2：Eu2+The green-like powder is common commercial glass powder, and the solution of the Isobam gel system is one of Isobam04#, Isobam104#, and Isobam600 #.
Further, the total amount of the aluminate yellow powder, the nitride red powder and the nitride green powder fluorescent powder in the raw materials accounts for 30-60 wt% of the mass of the glass powder.
Further, in Step3, the rotating speed of the vacuum defoaming machine is 1000-3000 r/min, and the time is 3-5 min.
Further, in Step4, standing for 1-2 days at room temperature, and drying in a constant temperature and humidity cabinet for 1 day at the temperature of 60 ℃.
Further, the temperature rising speed of Step5 is 1-6 ℃/min at room temperature-380 ℃, and the temperature is kept for 40-80 min at 380-430 ℃; the sintering process comprises the following steps: and heating to 600-700 ℃ at room temperature at a speed of 8-10 ℃/min, preserving heat for 20-30 min, and finally cooling along with the furnace.
Further, the furnace cooling is natural cooling to room temperature, and then polishing treatment is carried out to obtain the fluorescent glass.
The working principle of the fluorescent glass preparation method based on the gel casting technology is as follows: organic monomers are added into the solution to form a three-dimensional network structure through chemical crosslinking polymerization, so that the fluorescent powder and the glass powder in the solution are cured and molded in a mold.
Has the advantages that:
the application provides a fluorescent glass preparation method based on gel casting technology, compared with the prior art, the fluorescent glass preparation method has the following beneficial effects:
1. the application provides a fluorescent glass preparation method based on gel casting technology, and a wet method forming method is adopted to enable fluorescent powder to be mixed more uniformly to obtain high-quality white light, yellow, red and green fluorescent powder is utilized to adjust the phenomenon that the red light of the traditional fluorescent glass is insufficient, and the color rendering index is improved.
2. The application provides a fluorescent glass preparation method based on gel casting technology, the gel casting method can be used for manufacturing large-size and special-shaped fluorescent glass, and the mold design is simple.
3. The application provides a fluorescent glass preparation method based on a gel casting technology, which is used for preparing special-shaped fluorescent glass to improve the color rendering index and the heat dissipation performance of the special-shaped fluorescent glass.
Drawings
FIG. 1 is a photograph of a disk-shaped fluorescent glass blank and sintered.
FIG. 2 shows a photograph of a green convex lens-shaped fluorescent glass of the present invention after sintering.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is further described in detail with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and should not be taken to limit the scope of the invention.
Example 1:
a fluorescent glass preparation method based on gel casting technology comprises the following steps:
step1, weighing 30 g of glass powder, and accounting for 30 wt.% of the glass powder, wherein the ratio of Ce: YAG yellow powder 5.4 g, (Sr, Ca) AlSiN3：Eu2+Red powder 1.8g, BaSi2O2N2：Eu2+1.8g of green powder;
step2, adding 1g of Isobam04# gel system solution, 60g of high-purity zirconia grinding balls and 13ml of deionized water, fully stirring, putting into a ball milling tank, mixing and ball milling for 1 hour to obtain high-solid-content slurry;
step3, adding 0.5g of APS powder into the high-solid-content slurry, and putting the slurry into a vacuum defoaming machine at the rotating speed of 1000r/min for 5min to obtain the slurry subjected to defoaming;
step4, slowly introducing the slurry subjected to foam removal into a wafer mold, standing for 1 day at room temperature, and drying for 1 day in a constant temperature and humidity box at the temperature of 60 ℃ to obtain a fluorescent glass biscuit;
step5, carrying out degumming treatment on the biscuit, raising the temperature from room temperature to 380 ℃ at the speed of 6 ℃/min, and keeping the temperature for 80 min. And then sintering, heating the room temperature to 600 ℃ at a speed of 10 ℃/min, preserving the heat for 30min, naturally cooling to the room temperature, and polishing to obtain the fluorescent glass shown in figure 1, wherein the left side is the transmission and distribution, and the right side is the picture after sintering.
Example 2:
the preparation method of the fluorescent glass based on the gel casting technology of the embodiment comprises the following steps:
step1, weighing 30 g of glass powder, and accounting for 60 wt.% of the glass powder, wherein the ratio of Ce: YAG yellow powder 10.8 g, (Sr, Ca) AlSiN3：Eu2+3.6g of red powder, BaSi2O2N2：Eu2+3.6g of green powder;
step2, adding 1.5g of Isobam104# gel system solution, 90g of high-purity zirconia grinding balls and 16ml of deionized water, fully stirring, putting into a ball milling tank, mixing and ball milling for 6 hours to obtain high-solid-content slurry;
step3, adding 0.5g of APS powder into the high-solid-content slurry, and putting the slurry into a vacuum defoaming machine at a rotating speed of 3000r/min for defoaming for 3 min to obtain a defoamed slurry;
step4, slowly introducing the slurry subjected to bubble removal into a convex mould, standing for 2 days at room temperature, and drying for 1 day in a constant temperature and humidity box at the temperature of 60 ℃ to obtain a fluorescent glass biscuit;
and Step5, carrying out degumming treatment on the biscuit, raising the temperature from room temperature to 430 ℃ at the speed of 6 ℃/min, and keeping the temperature for 40 min. And then sintering, heating the room temperature to 700 ℃ at a speed of 10 ℃/min, preserving the heat for 20min, and naturally cooling to the room temperature. And polishing to obtain the fluorescent glass as shown in FIG. 2, wherein the left part is a biscuit and the right part is a picture after sintering.
Example 3:
the invention provides a fluorescent glass preparation method based on gel casting technology, which comprises the following steps:
step1, weighing 30 g of glass powder, and taking up 40 wt.% of fluorescent powder by mass of the glass powder, wherein the ratio of Ce: YAG yellow powder 7.2 g, (Sr, Ca) AlSiN3：Eu2+Red powder 2.4 g, BaSi2O2N2：Eu2+2.4 g of green powder;
step2, adding 2 g of Isobam104# gel system solution, 67.5 g of high-purity zirconia grinding balls and 15 ml of deionized water, fully stirring, putting into a ball milling tank, mixing and ball milling for 3 hours to obtain high-solid-content slurry;
step3, adding 0.5g of APS powder into the high-solid-content slurry, and putting the slurry into a vacuum defoaming machine at a rotating speed of 2000r/min for defoaming for 4min to obtain a defoamed slurry;
step4, slowly introducing the slurry subjected to bubble removal into a mold, standing for 2 days at room temperature, and drying in a constant temperature and humidity box at the temperature of 60 ℃ for 1 day to obtain a fluorescent glass biscuit;
and Step5, carrying out degumming treatment on the biscuit, raising the temperature from room temperature to 400 ℃ at the speed of 6 ℃/min, and keeping the temperature for 60 min. And then sintering, heating the room temperature to 650 ℃ at a speed of 10 ℃/min, preserving the heat for 30min, naturally cooling to the room temperature, and then polishing to obtain the fluorescent glass.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A fluorescent glass preparation method based on gel casting technology is characterized by comprising the following steps:
step1, weighing 5.4-10.8 parts of aluminate yellow powder, 1.8-3.6 parts of nitride red powder, 1.8-3.6 parts of nitride green powder, 30 parts of glass powder, 1-2 parts of Isobam gel system solution, 0.5 part of Ammonium Persulfate (APS) and 60-90 parts of zirconia balls according to the mass part ratio;
step2, adding the aluminate yellow powder, the nitride red powder, the nitride green powder, the glass powder and the zirconia balls into 13-16 parts of ultrapure water, carrying out ball milling, then adding an Isobam gel system solution, and carrying out ball milling for 1-6h to obtain mixed slurry with high solid content and good fluidity;
step3, adding the mixed slurry into APS powder, ball-milling again, and placing the mixture into a vacuum defoaming machine for defoaming;
step4, pouring the slurry with bubbles removed into a mould, and drying to obtain a fluorescent glass biscuit;
and Step5, carrying out glue discharging, sintering and polishing treatment on the biscuit to obtain the special-shaped fluorescent glass with high color rendering index and high heat dissipation performance.
2. The method for preparing fluorescent glass based on gel casting technology according to claim 1, characterized in that: in Step1, aluminate yellow powder in the raw material is Ce: YAG yellow powder and nitride red powder are (Sr, Ca) AlSiN3：Eu2+Red powder and green nitride powder BaSi2O2N2：Eu2+The green-like powder is common commercial glass powder, and the solution of the Isobam gel system is one of Isobam04#, Isobam104#, and Isobam600 #.
3. The method for preparing fluorescent glass based on gel casting technology according to claim 1, wherein the method comprises the following steps: the total amount of aluminate yellow powder, nitride red powder and nitride green powder fluorescent powder in the raw materials accounts for 30-60 wt% of the mass of the glass powder.
4. The method for preparing fluorescent glass based on gel casting technology according to claim 1, wherein the method comprises the following steps: in Step3, the rotating speed of the vacuum defoaming machine is 1000-3000 r/min, and the time is 3-5 min.
5. The method for preparing fluorescent glass based on gel casting technology according to claim 1, wherein the method comprises the following steps: in the Step4, the drying condition is to stand for 1-2 days at room temperature and then dry for 1 day in a constant temperature and humidity box at the temperature of 60 ℃.
6. The method for preparing fluorescent glass based on gel casting technology according to claim 1, wherein the method comprises the following steps: the temperature rising speed of the Step5 is 1-6 ℃/min at the room temperature-380 ℃, and the temperature is kept at 380-430 ℃ for 40-80 min; the sintering process comprises the following steps: heating to 600-700 ℃ at room temperature at a speed of 8-10 ℃/min, preserving heat for 20-30 min, and finally cooling along with the furnace.
7. The method for preparing fluorescent glass based on gel casting technology according to claim 6, wherein the method comprises the following steps: and the furnace cooling is to naturally cool the glass to room temperature, and then polishing the glass to obtain the fluorescent glass.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105503188A (en) * | 2015-12-08 | 2016-04-20 | 中国科学院上海硅酸盐研究所 | Preparation method of fluorescent transparent ceramic disk for LED (Light-emitting Diode) |
| CN106098909A (en) * | 2016-06-15 | 2016-11-09 | 厦门大学 | A kind of preparation method of LED illumination composite construction fluorescent glass sheet |
| CN112563880A (en) * | 2020-12-25 | 2021-03-26 | 新沂市锡沂高新材料产业技术研究院有限公司 | Green light source based on multifunctional fluorescent ceramic |
| CN113402269A (en) * | 2021-06-29 | 2021-09-17 | 南通大学 | Preparation method of three-color transparent fluorescent ceramic capable of adjusting white light of different degrees |
| CN114479859A (en) * | 2022-01-05 | 2022-05-13 | 浙江大学 | Multicolor adjustable germanate fluorescent glass ceramic and preparation method thereof |
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- 2022-05-21 CN CN202210558277.0A patent/CN114751630B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105503188A (en) * | 2015-12-08 | 2016-04-20 | 中国科学院上海硅酸盐研究所 | Preparation method of fluorescent transparent ceramic disk for LED (Light-emitting Diode) |
| CN106098909A (en) * | 2016-06-15 | 2016-11-09 | 厦门大学 | A kind of preparation method of LED illumination composite construction fluorescent glass sheet |
| CN112563880A (en) * | 2020-12-25 | 2021-03-26 | 新沂市锡沂高新材料产业技术研究院有限公司 | Green light source based on multifunctional fluorescent ceramic |
| CN113402269A (en) * | 2021-06-29 | 2021-09-17 | 南通大学 | Preparation method of three-color transparent fluorescent ceramic capable of adjusting white light of different degrees |
| CN114479859A (en) * | 2022-01-05 | 2022-05-13 | 浙江大学 | Multicolor adjustable germanate fluorescent glass ceramic and preparation method thereof |
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