CN114751630B - 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 85
- 238000005516 engineering process Methods 0.000 title claims abstract description 21
- 238000005266 casting Methods 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000000843 powder Substances 0.000 claims abstract description 84
- 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
- 238000000034 method Methods 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 9
- 238000007599 discharging Methods 0.000 claims abstract description 8
- 239000003292 glue Substances 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 6
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims abstract description 5
- 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 16
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 6
- 102100032047 Alsin Human genes 0.000 claims description 5
- 101710187109 Alsin Proteins 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- 229910016066 BaSi Inorganic materials 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 2
- 108010043121 Green Fluorescent Proteins Proteins 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 239000000499 gel Substances 0.000 description 19
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- 239000010410 layer Substances 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
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 238000005286 illumination 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
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010382 chemical cross-linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011835 investigation 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
- 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
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
Classifications
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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
Landscapes
- 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 preparation method of fluorescent glass based on gel casting technology, which comprises the steps of adding aluminate yellow powder, nitride red powder and nitride green powder, glass powder and zirconia balls into 13-16 parts of ultrapure water, performing ball milling, then adding Isobam gel system solution, and performing ball milling for 1-6 hours to obtain mixed slurry with high solid content and good fluidity; adding APS powder into the mixed slurry, ball milling again, and then placing the mixture into a vacuum defoaming machine for defoaming; pouring the slurry with bubbles removed into a mould, and drying to obtain a fluorescent glass biscuit; performing glue discharging, sintering and polishing treatment on the biscuit to obtain special-shaped fluorescent glass with high color rendering index and high heat dissipation performance; the wet forming method is adopted to ensure that the fluorescent powder is mixed more uniformly, so that high-quality white light can be obtained, the phenomenon of insufficient red light of the traditional fluorescent glass is regulated by using yellow, red and green fluorescent powder, 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
LEDs have been widely used as a solid semiconductor device capable of electro-optical conversion with advantages of high efficiency, low energy consumption, long life, low energy consumption, etc. in the field of illumination. In particular, "blue LED chip+yellow phosphor" is one of the important combinations to achieve 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 disadvantage of the technology is that epoxy resin or silica gel resists high temperature and ultraviolet irradiation energy difference, the transparency and refractive index of the adhesive layer are reduced, the light efficiency and light intensity distribution of the device are affected, and the service life of the white light LED is greatly shortened. The remote packaging technology can effectively solve the heat dissipation problem, but has a remarkable problem that the surface of the fluorescent powder layer is not an absolute plane and is influenced by the surface tension of liquid and the like, and the fluorescent powder layer is often a concave curved surface, so that the illumination is unevenly distributed. Therefore, the fluorescent glass and the fluorescent ceramic become emerging fluorescent conversion materials in the remote packaging technology, and have the functions of the packaging material and the fluorescent material, and the thermal stability and the thermal conductivity are far higher than those of the mixture of the fluorescent powder and the silica gel. However, fluorescent ceramics have the defects 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 chromogenic element and the like, and is gradually applied to industrial production at present. However, the preparation of the special-shaped fluorescent glass has difficulties at present and has been reported. The present application thus proposes a completely new method for preparing fluorescent glass, gel-casting fluorescent glass. Not only effectively enhancing the uniformity of the luminous efficiency of the fluorescent glass and improving the color rendering index, but also greatly improving the heat dissipation performance of the special-shaped fluorescent glass due to the increased surface area of the special-shaped fluorescent glass.
In the prior investigation, a series of fluorescent glass is disclosed in patent CN 108503216A, for example, a preparation method of the fluorescent glass and the fluorescent glass are disclosed, a layer of 'ink' formed by mixing red fluorescent powder and organic matters is coated on the pre-prepared LuAG fluorescent glass by utilizing a spin coating technology, but the problem of interface between the 'ink' and the fluorescent glass cannot be solved, and the organic matters are easy to decompose at high temperature and have no good heat conductivity, so that the service life of the fluorescent glass is greatly shortened; patent CN 110627356A discloses a preparation method of high-temperature-resistant fluorescent glass for LEDs, and the preparation of fluorescent glass by using SPS plasma discharge sintering method has huge cost and is not suitable for large-scale industrial production, and only Ce is added into fluorescent powder: YAG yellow fluorescent powder with low color rendering index.
Disclosure of Invention
The technical problems to be solved are as follows:
the fluorescent glass solves the problems that the prior epoxy resin or silica gel has high temperature resistance and poor ultraviolet irradiation energy, reduces transparency and refractive index of a dispensing layer, influences light efficiency and light intensity distribution of a device, greatly shortens service life of a white light LED, is uneven in light distribution, has low quantum conversion rate and low color rendering index, is large in cost and is not suitable for large-scale industrial production by utilizing an SPS plasma discharge sintering method to prepare the fluorescent glass, and only Ce is added into the fluorescent powder: the technical problems of low color rendering index and the like of YAG yellow fluorescent powder are solved, a fluorescent glass preparation method based on a gel casting technology is provided, special-shaped fluorescent glass with high color rendering index and strong heat dissipation performance is obtained, a blue LED chip and fluorescent glass method is adopted to generate high-quality white light, and the color rendering index and heat dissipation performance of the special-shaped fluorescent glass are improved through the preparation of the special-shaped fluorescent glass.
The technical scheme is as follows:
in order to achieve the above purpose, the present application is implemented by the following technical schemes:
a preparation method of fluorescent glass 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, performing ball milling, then adding the Isobam gel system solution, and performing ball milling for 1-6 hours to obtain mixed slurry with high solid content and good fluidity;
step3, adding the mixed slurry into APS powder, ball milling again, and then placing the mixture into a vacuum defoaming machine for defoaming;
step4, pouring the bubble-removed slurry into a mold, and drying to obtain a fluorescent glass biscuit;
step5, performing 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.
Further, in Step1, the aluminate yellow powder in the raw material is Ce: YAG yellow powder, nitride red powder of (Sr, ca) AlSiN 3 ：Eu 2+ Red powder, and green nitride powder of BaSi 2 O 2 N 2 ：Eu 2+ Green-like powder and glassThe glass powder is common commercial glass powder, and the Isobam gel system solution is one of Isobam04#, isobam104#, isobam 600#.
Further, the total amount of aluminate yellow powder, nitride red powder and nitride green powder fluorescent powder in the raw materials accounts for 30 wt-60 wt% of the mass of the glass powder.
Further, in Step3, the rotation speed of the vacuum bubble removing machine is 1000-3000 r/min, and the time is 3-5 min.
Further, in Step4, the drying condition is that the mixture is kept stand at room temperature for 1-2 days, and then dried in a constant temperature and humidity box for 1 day, wherein the temperature is 60 ℃.
Further, the glue discharging in Step5 is performed at the temperature of between room temperature and 380 ℃ at the heating rate of between 1 and 6 ℃/min, and the temperature is kept at 380 to 430 ℃ for 40 to 80 minutes; the sintering process comprises the following steps: heating to 600-700 ℃ at room temperature at 8-10 ℃/min, preserving heat for 20-30 min, and finally cooling along with the furnace.
And further, cooling the glass along with the furnace to be naturally cooled to room temperature, and polishing to obtain the fluorescent glass.
The working principle of the fluorescent glass preparation method based on the gel casting technology is as follows: and adding an organic monomer 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 solidified and molded in a mold.
The beneficial effects are that:
compared with the prior art, the fluorescent glass preparation method based on the gel casting technology has the following beneficial effects:
1. the fluorescent glass preparation method based on the gel casting technology adopts a wet forming method to ensure that fluorescent powder is mixed more uniformly, so that high-quality white light can be obtained, and the phenomenon of insufficient red light of the traditional fluorescent glass is regulated by using yellow, red and green fluorescent powder, so that the color rendering index is improved.
2. The application provides a preparation method of fluorescent glass based on gel casting technology, which can be used for manufacturing large-size special-shaped fluorescent glass by adopting the gel casting technology, and has simple mold design.
3. The application provides a preparation method of fluorescent glass based on gel casting technology, which is used for preparing special-shaped fluorescent glass to improve the color rendering index and heat dissipation performance of the special-shaped fluorescent glass.
Drawings
FIG. 1 is a photograph of a round sheet fluorescent glass green body and after sintering of the present application.
FIG. 2 is a photograph of a lenticular fluorescent glass greensheet and after sintering of the present application.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments in order to make the objects, technical solutions and advantages of the present invention more clear. It should be understood that the detailed description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1:
a preparation method of fluorescent glass based on gel casting technology comprises the following steps:
step1, weighing 30 g glass powder, wherein the glass powder accounts for 30 wt percent of the mass of the glass powder, and Ce: YAG yellow powder 5.4 g, (Sr, ca) AlSiN 3 ：Eu 2+ 1.8g of red powder and BaSi 2 O 2 N 2 ：Eu 2+ 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 1h uniformly 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 1000r/min for defoaming for 5min to obtain a defoamed slurry;
step4, slowly introducing the bubble-removed slurry into a wafer die, firstly standing for 1 day at room temperature, and then drying for 1 day in a constant temperature and humidity box at 60 ℃ to obtain a fluorescent glass biscuit;
step5, performing glue discharging treatment on the biscuit, starting at room temperature, heating to 380 ℃ at a speed of 6 ℃/min, and preserving heat for 80min. And then sintering, wherein the room temperature is raised to 600 ℃ at 10 ℃ per minute, the temperature is kept for 30 minutes, the natural cooling is carried out to the room temperature, and the fluorescent glass is obtained through polishing treatment, wherein the fluorescent glass is shown in the figure 1, the left is a transmission and distribution, and the right is a photo after sintering.
Example 2:
the preparation method of the fluorescent glass based on the gel casting technology comprises the following steps:
step1, weighing 30 g glass powder, wherein the glass powder accounts for 60-wt% of the mass of the glass powder, and Ce: YAG yellow powder 10.8 g, (Sr, ca) AlSiN 3 ：Eu 2+ 3.6g of red powder and BaSi 2 O 2 N 2 ：Eu 2+ 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 uniformly to obtain high-solid-content slurry;
step3, adding 0.5g of APS powder into the slurry with high solid content, and putting the slurry into a vacuum bubble removing machine at a rotating speed of 3000r/min for 3 min to obtain bubble removed slurry;
step4, slowly introducing the bubble-removed slurry into a convex mold, firstly standing for 2 days at room temperature, and then drying in a constant temperature and humidity box at 60 ℃ for 1 day to obtain a fluorescent glass biscuit;
step5, performing glue discharging treatment on the biscuit, heating to 430 ℃ from room temperature at a speed of 6 ℃/min, and preserving heat for 40min. And then sintering, wherein the room temperature is heated to 700 ℃ at 10 ℃ per minute, the temperature is kept for 20 minutes, and the room temperature is naturally cooled to the room temperature. And polishing to obtain fluorescent glass as shown in figure 2, wherein the left side is a biscuit, and the right side is a sintered photograph.
Example 3:
the invention provides a preparation method of fluorescent glass based on gel casting technology, which comprises the following steps:
step1, weighing 30 g glass powder, wherein the glass powder accounts for 40-wt% of the mass of the glass powder, and Ce: YAG yellow powder 7.2 g, (Sr, ca) AlSiN 3 ：Eu 2+ Red powder 2.4 g, baSi 2 O 2 N 2 ：Eu 2+ Green powder 2.4 g;
step2, adding Isobam104# gel system solution 2 g, high-purity zirconia grinding balls 67.5 g and deionized water 15 ml, fully stirring, putting into a ball milling tank, and mixing and ball milling for 3 h 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 bubble-removed slurry into a die, firstly standing for 2 days at room temperature, and then drying in a constant temperature and humidity box at 60 ℃ for 1 day to obtain a fluorescent glass biscuit;
step5, performing glue discharging treatment on the biscuit, heating to 400 ℃ from room temperature at a speed of 6 ℃/min, and preserving heat for 60 min. And then sintering, heating the room temperature to 650 ℃ at 10 ℃ per minute, preserving heat for 30 minutes, naturally cooling to the room temperature, and polishing to obtain the fluorescent glass.
While the foregoing is directed to embodiments of the present invention, other and further details of the invention may be had by the present invention, it should be understood that the foregoing description is merely illustrative of the present invention and that no limitations are intended to the scope of the invention, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the invention.
Claims (4)
1. The preparation method of the fluorescent glass based on the gel casting technology is characterized by comprising the following steps of:
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 and 60-90 parts of zirconia balls according to the mass part ratio; in Step1, the aluminate yellow powder in the raw materials is Ce: YAG yellow powder, nitride red powder of (Sr, ca) AlSiN 3 ：Eu 2+ The red powder and the nitride green powder are BaSi 2 O 2 N 2 ：Eu 2+ The green powder and the glass powder are common commercial glass powder, and the Isobam gel system solution is one of Isobam04#, isobam104#, isobam 600#;
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, performing ball milling, then adding the Isobam gel system solution, and performing ball milling for 1-6 hours to obtain mixed slurry with high solid content and good fluidity;
step3, adding ammonium persulfate powder into the mixed slurry, ball milling again, and then placing the mixture into a vacuum defoaming machine for defoaming; in Step3, the rotating speed of the vacuum bubble removing machine is 1000-3000 r/min, and the time is 3-5 min;
step4, pouring the bubble-removed slurry into a mold, and drying to obtain a fluorescent glass biscuit;
step5, performing 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;
the total amount of aluminate yellow powder, nitride red powder and nitride green powder fluorescent powder in the raw materials accounts for 30 wt-60 wt% of the mass of the glass powder.
2. The method for preparing fluorescent glass based on gel casting technology as claimed in claim 1, wherein the method comprises the following steps: in Step4, the drying condition is that standing is carried out for 1-2 days at room temperature, and then drying is carried out in a constant temperature and humidity box for 1 day, wherein the temperature is 60 ℃.
3. The method for preparing fluorescent glass based on gel casting technology as claimed in claim 1, wherein the method comprises the following steps: the glue discharging in Step5 is carried out at the temperature of between room temperature and 380 ℃ at the heating rate of between 1 and 6 ℃/min, and the temperature is kept for 40 to 80 minutes at the temperature of between 380 and 430 ℃; the sintering process comprises the following steps: heating to 600-700 ℃ at room temperature at 8-10 ℃/min, preserving heat for 20-30 min, and finally cooling along with the furnace.
4. A method for preparing fluorescent glass based on gel casting technology as defined in claim 3, wherein: and cooling along with the furnace to naturally cool to room temperature, and polishing 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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