CN107611241A - A kind of multiphase compound Re, Ce:YAG ceramic fluorescent pieces and preparation method thereof - Google Patents
A kind of multiphase compound Re, Ce:YAG ceramic fluorescent pieces and preparation method thereof Download PDFInfo
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- CN107611241A CN107611241A CN201710990137.XA CN201710990137A CN107611241A CN 107611241 A CN107611241 A CN 107611241A CN 201710990137 A CN201710990137 A CN 201710990137A CN 107611241 A CN107611241 A CN 107611241A
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Abstract
The invention discloses a kind of compound Re of multiphase, Ce:YAG ceramic fluorescent pieces and preparation method thereof, including the crystalline ceramics in bulk and the white particle being uniformly distributed in inside the crystalline ceramics, the chemical composition of the crystalline ceramics is Re, Ce:YAG, the white particle are micro inorganic oxide particle, and percentage by weight of the white particle in the composite transparent ceramic is 0.001 40%.The present invention allows blue light to be formed in ceramic fluorescent piece and repeatedly excited, and significantly increases light efficiency.
Description
Technical field
The present invention relates to the application field of ceramic fluorescent piece, more particularly to a kind of multiphase compound Re, Ce:YAG ceramics are glimmering
Mating plate and preparation method thereof.
Background technology
White light LEDs have many advantages, such as Small Solid, vibration resistance, energy-conservation and long lifespan, green high-efficient, and future can be wide
It is general to be applied to various buildings and Landscape Lighting, LCD bias lights, medical treatment, navigation aviation, automotive lighting and various portable lightings.
Fluorescent material is mainly coated on blue-ray LED and realizes white light by wavelength convert by the principle of luminosity of white light LEDs, so
And current white light LEDs are primarily present problem following prominent：Fluorescent material the light that blue chip is sent by when can produce scattering
Phenomena such as with absorbing, reduce light efficiency.
The content of the invention
To solve problem present in above-mentioned background technology, it is an object of the invention to provide a kind of compound Re of multiphase,
Ce:YAG ceramic fluorescent pieces and preparation method thereof, allow blue light to be formed in ceramic fluorescent piece repeatedly to excite, significantly increase to reach
The purpose of light efficiency.
To reach above-mentioned purpose, technical scheme is as follows：
A kind of multiphase compound Re, Ce:YAG ceramic fluorescent pieces, including in block crystalline ceramics and it is uniformly distributed in institute
The white particle inside crystalline ceramics is stated, the chemical composition of the crystalline ceramics is Re, Ce:YAG, the white particle are micron
Level inorganic oxide particles, percentage by weight of the white particle in the composite transparent ceramic is 0.001-40%.
Preferably, the particle diameter of the white particle is less than 30 microns.
Preferably, the white particle is CaO, BaO, MgO, BeO, SrO, B2O3、Al2O3、Ga2O3、Y2O3In one kind or
It is a variety of.
Preferably, the Re is the one or more in Gd, Sm, Pr.
A kind of multiphase compound Re, Ce:The preparation method of YAG ceramic fluorescent pieces, including：The oxide of crystalline ceramics is former
Material and micron inorganic oxide are by the well mixed obtained mixed powder of proportion of composing；The mixed powder is passed through into isostatic pressing
Blank is made；By the blank vacuum-sintering after annealing with obtained multiphase composite flourescent sheet.
Preferably, the pressure of the isostatic pressing is more than 180MPa.
Preferably, the vacuum-sintering is to be no more than 1820 DEG C under condition of high vacuum degree environment according to product size sintering time
10-100 hours.
Preferably, the temperature of the annealing is to be no more than 1500 DEG C in atmosphere, and the time is no more than 40 hours, to supply oxygen
Room.
Preferably, Re, Ce can be first made in methods described:YAG powders dose CaO, BaO, MgO, BeO, SrO, B again2O3、
Al2O3、Ga2O3、Y2O3In one or more multiphase composite flourescent sheet is made.
Pass through above-mentioned technical proposal, a kind of multiphase provided by the invention compound Re, Ce:YAG ceramic fluorescents piece and its system
Preparation Method, the second phase white particle being introduced in crystalline ceramics and forms multiphase structure, white particle has reflection and scattering process,
Blue light can be allowed to be formed in ceramic fluorescent piece repeatedly to excite, significantly increase light efficiency.
Embodiment
The technical scheme in the embodiment of the present invention will be clearly and completely described below.
A kind of multiphase provided by the invention compound Re, Ce:YAG ceramic fluorescent pieces, including in bulk crystalline ceramics and
The white particle being uniformly distributed in inside the crystalline ceramics, the chemical composition of the crystalline ceramics is Re, Ce:YAG is described white
Coloured particles are micro inorganic oxide particle, and percentage by weight of the white particle in the composite transparent ceramic is
0.001-40%, the particle diameter of the white particle are less than 30 microns, the white particle is CaO, BaO, MgO, BeO, SrO,
B2O3、Al2O3、Ga2O3、Y2O3In one or more, the Re be Gd, Sm, Pr in one or more.
Embodiment one：
A kind of multiphase provided by the invention compound Re, Ce:YAG ceramic fluorescent pieces, white particle is in the composite transparent
Percentage by weight in ceramics is 0.001%.
Embodiment two：
A kind of multiphase provided by the invention compound Re, Ce:YAG ceramic fluorescent pieces, white particle is in the composite transparent
Percentage by weight in ceramics is 1%.
Embodiment three：
A kind of multiphase provided by the invention compound Re, Ce:YAG ceramic fluorescent pieces, white particle is in the composite transparent
Percentage by weight in ceramics is 10%.
Example IV：
A kind of multiphase provided by the invention compound Re, Ce:YAG ceramic fluorescent pieces, white particle is in the composite transparent
Percentage by weight in ceramics is 28%.
Embodiment five：
A kind of multiphase provided by the invention compound Re, Ce:YAG ceramic fluorescent pieces, white particle is in the composite transparent
Percentage by weight in ceramics is 37%.
Embodiment six：
A kind of multiphase provided by the invention compound Re, Ce:YAG ceramic fluorescent pieces, white particle is in the composite transparent
Percentage by weight in ceramics is 40%.
A kind of multiphase compound Re, Ce:The preparation method of YAG ceramic fluorescent pieces, including：The oxide of crystalline ceramics is former
Material and micron inorganic oxide are by the well mixed obtained mixed powder of proportion of composing；The mixed powder is passed through into isostatic pressing
Blank is made；By the blank vacuum-sintering after annealing with obtained multiphase composite flourescent sheet, the pressure of the isostatic pressing
Power is more than 180MPa, and the vacuum-sintering is to be no more than 1820 DEG C under condition of high vacuum degree environment according to product size sintering time
10-100 hours, the temperature of the annealing are to be no more than 1500 DEG C in atmosphere, and the time is no more than 40 hours, to supply oxygen sky
Position.
Re, Ce can be first made in methods described:YAG powders dose CaO, BaO, MgO, BeO, SrO, B again2O3、Al2O3、
Ga2O3、Y2O3In one or more multiphase composite flourescent sheet is made, also can directly be dosed in initial fabrication.
A kind of multiphase disclosed by the invention compound Re, Ce:YAG ceramic fluorescent pieces and preparation method thereof, in crystalline ceramics
The second phase white particle of middle introducing forms multiphase structure, and white particle has reflection and scattering process, can allow blue light in ceramics
Formed in flourescent sheet and repeatedly excited, significantly increase light efficiency.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (9)
1. a kind of multiphase compound Re, Ce:YAG ceramic fluorescent pieces, it is characterised in that including the crystalline ceramics in bulk and uniformly
The white particle being distributed in inside the crystalline ceramics, the chemical composition of the crystalline ceramics is Re, Ce:YAG, the white
Grain is micro inorganic oxide particle, and percentage by weight of the white particle in the composite transparent ceramic is 0.001-
40%.
2. a kind of multiphase according to claim 1 compound Re, Ce:YAG ceramic fluorescent pieces, it is characterised in that described white
The particle diameter of coloured particles is less than 30 microns.
3. a kind of multiphase according to claim 1 compound Re, Ce:YAG ceramic fluorescent pieces, it is characterised in that described white
Coloured particles are CaO, BaO, MgO, BeO, SrO, B2O3、Al2O3、Ga2O3、Y2O3In one or more.
4. a kind of multiphase according to claim 1 compound Re, Ce:YAG ceramic fluorescent pieces, it is characterised in that the Re
For the one or more in Gd, Sm, Pr.
5. a kind of multiphase compound Re, Ce:The preparation method of YAG ceramic fluorescent pieces, it is characterised in that including：By crystalline ceramics
Oxide raw material and micron inorganic oxide by the well mixed obtained mixed powder of proportion of composing；The mixed powder is passed through
Blank is made in isostatic pressing；By the blank vacuum-sintering after annealing with obtained multiphase composite flourescent sheet.
6. a kind of multiphase according to claim 5 compound Re, Ce:The preparation method of YAG ceramic fluorescent pieces, its feature exist
In the pressure of the isostatic pressing is more than 180MPa.
7. a kind of multiphase according to claim 5 or 6 compound Re, Ce:The preparation method of YAG ceramic fluorescent pieces, it is special
Sign is that the vacuum-sintering is no more than 1820 DEG C small according to product size sintering time 10-100 under condition of high vacuum degree environment
When.
8. a kind of multiphase according to claim 7 compound Re, Ce:The preparation method of YAG ceramic fluorescent pieces, its feature exist
In the temperature of the annealing is to be no more than 1500 DEG C in atmosphere, and the time is no more than 40 hours, to supply Lacking oxygen.
9. a kind of multiphase according to claim 5 compound Re, Ce:The preparation method of YAG ceramic fluorescent pieces, its feature exist
In Re, Ce can be first made in methods described:YAG powders dose CaO, BaO, MgO, BeO, SrO, B again2O3、Al2O3、Ga2O3、Y2O3
In one or more multiphase composite flourescent sheet is made.
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| CN201710990137.XA CN107611241A (en) | 2017-10-23 | 2017-10-23 | A kind of multiphase compound Re, Ce:YAG ceramic fluorescent pieces and preparation method thereof |
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| CN201710990137.XA CN107611241A (en) | 2017-10-23 | 2017-10-23 | A kind of multiphase compound Re, Ce:YAG ceramic fluorescent pieces and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021037226A1 (en) * | 2019-08-29 | 2021-03-04 | 深圳市中光工业技术研究院 | Fluorescent ceramic, preparation method therefor and light source device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101492602A (en) * | 2009-02-16 | 2009-07-29 | 江苏苏博特新材料股份有限公司 | Mixed fluorescent powder for white light emitting device and white light emitting device using the same |
| CN104576899A (en) * | 2010-08-17 | 2015-04-29 | 柯尼卡美能达先进多层薄膜株式会社 | Method of manufacturing light-emitting device |
-
2017
- 2017-10-23 CN CN201710990137.XA patent/CN107611241A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101492602A (en) * | 2009-02-16 | 2009-07-29 | 江苏苏博特新材料股份有限公司 | Mixed fluorescent powder for white light emitting device and white light emitting device using the same |
| CN104576899A (en) * | 2010-08-17 | 2015-04-29 | 柯尼卡美能达先进多层薄膜株式会社 | Method of manufacturing light-emitting device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021037226A1 (en) * | 2019-08-29 | 2021-03-04 | 深圳市中光工业技术研究院 | Fluorescent ceramic, preparation method therefor and light source device |
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Application publication date: 20180119 |