CN1122317A - Producing process for ceramic luminous material and product - Google Patents
Producing process for ceramic luminous material and product Download PDFInfo
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- CN1122317A CN1122317A CN 95106331 CN95106331A CN1122317A CN 1122317 A CN1122317 A CN 1122317A CN 95106331 CN95106331 CN 95106331 CN 95106331 A CN95106331 A CN 95106331A CN 1122317 A CN1122317 A CN 1122317A
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Abstract
The present invention is luminous ceramic material and product produced with alkali-earth metal compound as host and rare-earth element as activator and through baking. After oxygen-isolating baking at 1,420-1,560 deg.C for 1-4 hr, the product is oxygen-isolating cooled. The said luminous material and product has strong light-storing and luminouw power and is bright and lustrous.
Description
Producing process for ceramic luminous material and goods are to be that matrix, rare earth element are activator by alkaline earth metal compound, are fired into ceramic luminescent material or luminescent material ceramic through heating.
Existing ceramic luminescent material is that matrix, rare earth element are activator by alkaline earth metal compound, is fired into ceramic luminescent material or luminescent material ceramic through heating.The temperature that its heating is burnt till is carried out solid state reaction all at 900～1400 ℃ in this temperature range.This temperature range is still prolonged the oxygen barrier firing temperature with phosphor, and the actual effect of firing is also bad, does not reach due storage light luminous power.As Chinese invention patent ublic specification of application cn1095748A, the Phosphorscent phosphor of record on November 30th, 1994.The mixture that it is made of SrCO, AlO, EuO, BaCO behind the ball mill thorough mixing, under the protection of nitrogen hydrogen stream, was fired 1 hour at 1300 ℃.Obtain compound powder after the cooling and cross screen sizing.The luminescent material solid state reaction that obtains is insufficient, can not form sosoloid preferably.The long-decay phosphor material and the preparation thereof of state's invention patent application prospectus CN1053807A record in 11 days Augusts in 1991 for another example, its oxide compound or corresponding salt with Al, Sr, Eu, Ba is pressed component preparation, porphyrize, in 1200～1600 ℃ of High Temperature Furnaces Heating Apparatuss, heated 1～6 hour, pulverize the cooling back, reduces in 1000～1400 ℃ nitrogen carrier of oxygen and fired 1～4 hour.Sintering technology more complicated, and power consumption like this is big, and in heat-processed part first time oxidation damage, will influence luminous effect.This specification sheets further proposes said mixture is directly fired 1200～1600 ℃ in nitrogen hydrogen, keeps making in 1～5 hour.But this is a kind of saying without basis.Empirical tests at 1200～1300 ℃, does not almost have solid state reaction, can not form the storage light luminance of sosoloid; At 1300～1400 ℃, though can carry out solid state reaction, the luminescent material of being gone storage light luminous power is as described so good not; At 1600 ℃, material turns black burning, reduces luminous efficiency greatly, even almost can not be luminous.
The purpose of this invention is to provide a kind of simple to operate, guarantee to burn till the producing process for ceramic luminous material and the goods of quality.
Producing process for ceramic luminous material of the present invention is that matrix, rare earth element are the mixture of activator by alkaline earth metal compound still, burns till through the oxygen barrier heating.Be characterized in that oxygen barrier is heated to 1420～1560 ℃ of scopes, fire 1～4 hour after, oxygen barrier cooling.The higher time of firing of temperature is just less, and the low time of firing of temperature is just more.Needn't fire twice like this, once be heated to 1420～1560 ℃ of oxygen barriers in high-temperature zone and fire, can guarantee the quality of burning till.After the temperature more than 1420 ℃ was burnt till, luminescent material just had tangible storage luminous energy power and luminous power, has reached practical effect, and the luminous time is more than 2 hours.At the luminescent material that the temperature more than 1560 ℃ is burnt till, storage luminous energy power and luminous power obviously begin to reduce greatly, and the luminous time will be less than 3 hours.Color begins to send out dark, blackout, and temperature improves, the energy consumption increasing is unnecessary.For the quality that further guarantees to burn till,, oxygen barrier fires but being heated to 1460～1530 ℃.The luminescent material fluorescent lifetime that burns till like this will reach more than 6～7 hours, and glorious degrees improves greatly.Certainly, the luminescent material that burns till 1480～1520 ℃ of direct oxygen barriers of scope preferably, storage luminous energy power and luminous power are very excellent.Behind ultraviolet ray or natural light irradiation, the spectrum main peak is all more than 530nm.With the irradiation of 15 watts fluorescent lamps after ten minutes, the glorious degrees initial value is minimum also more than 2000mcd/m, but more than the general 3000mcd/m, fluorescent lifetime reaches tens hours, even twenties hours.The oxygen barrier firing temperature surpasses 1520 ℃, and the luminescent material of firing storage luminous energy power, luminous power begin to descend, but still can obtain effect preferably below 1560 ℃.Under the situation of effect same, should adopt lower temperature, so temperature is preferably in 1480～1520 ℃.
Producing process for ceramic luminous material of the present invention also will cool off after burning till naturally, the oxygen barrier cooling.Preferably want oxygen barrier to be cooled to below 600 ℃, could contact with air or contact continuation and cool off with air.Storage luminous energy power and luminous power after so just guaranteeing to burn till.Alkaline earth metal compound is aluminum oxide or aluminium hydroxide preferably.Alkaline earth metal compound generally also contains the compound of Sr.Activator is rare earth element Eu preferably, based on Eu.Can also be furnished with other rare earth element as the agent of living altogether.In order to make illumination effect better, photochromic more gorgeous, mixture can contain Ga O 5～10 ‰.
The goods that producing process for ceramic luminous material of the present invention is produced, by alkaline earth metal compound is that matrix, rare earth element are the mixture of activator, its characteristics are levied and are: the repressed shaping of mixture, oxygen barrier is heated to 1420～1560 ℃ again, fires that 1～4 hour postcooling forms.And preferably oxygen barrier heating 1480～1520 ℃ of scopes are fired into.The goods that producing process for ceramic luminous material is produced, alkaline earth metal compound is aluminum oxide or aluminium hydroxide preferably, also contains the compound of Sr, and activator is rare earth element Eu, also contains the agent alive altogether of other rare earth elements.
The goods that producing process for ceramic luminous material of the present invention is produced, can also be to be that matrix, rare earth element are the mixture of activator by alkaline earth metal compound, be heated to 1420～1560 ℃ through oxygen barrier, yet fire the ceramic luminescent material that became in 1～4 hour, again through pulverizing with other potteries or enamel or glaze material mixing and being fired into below 1300 ℃.
Compared with the prior art the present invention directly carries out oxygen barrier and fires, and once fires to form, and has simplified operational process of craft greatly, has saved energy greatly; The temperature range of burning till is accurate, guarantees the quality of the luminescent material that burns till, and storage luminous energy power and luminous power are all relatively good; Technology workable is particularly suitable for suitability for industrialized production; The goods luminous power that forms is strong, the color and luster good luster.
Further specify technology of the present invention and goods below in conjunction with real row.
Example 1, get Al (OH) 11g, EuO 0.2g, SrCO 6g, HBO 0.18g.With these compound, in nitrogen hydrogen, be heated to 1420 ℃, keep 4 hours postcooling, obtain luminescent material.The initial glorious degrees of this luminescent material is at 180mcd/m, and fluorescent lifetime was at 2 hours.
After example 2, the usefulness compound of example 1, be heated to 1500 ℃ in nitrogen hydrogen, keep 2 hours postcooling, the initial glorious degrees of the luminescent material that obtains is 3200mcd/m, and the luminescent spectrum main peak is 530nm, and the luminous time is twenties hours.
After example 3, the usefulness compound of example 1, be heated to 1560 ℃ in nitrogen hydrogen, keep 2 hours postcooling, the initial glorious degrees of the luminescent material that obtains is 500mcd/m, and the luminescent spectrum main peak is 500nm, and the luminous time is 3 hours.
After example 4, the usefulness compound of example 1, be heated to 1460 ℃ in nitrogen hydrogen, keep 3 hours postcooling, the initial glorious degrees of the luminescent material that obtains is 1000mcd/m, and the luminescent spectrum main peak is 500nm, and the luminous time is 6 hours
After example 5, the usefulness compound of example 1, be heated to 1530 ℃ in nitrogen hydrogen, keep 1 hour postcooling, the initial glorious degrees of the luminescent material that obtains is 1500mcd/m, and the luminescent spectrum main peak is 500nm, and the luminous time is 7 hours.
Example 6, get AlO 100g, SrCO 100g, NaBO 10H O48g, GaO3g, EuO 2g, MgO3g, DyO 3g, CeO 3g.After mixing, fire.Prepare seven times, fire in different temperature respectively, keep the time of firing to be two hours 30 minutes, being cooled to comes out of the stove below 600 ℃ or contact with air continues cooling.Can be after mixing press forming, form vessel such as cup, fire again.Keep at 1420 ℃ and to fire, initial glorious degrees is 184mcd/m, and the luminous time is two hours.Keep at 1460 ℃ and to fire, initial glorious degrees is 1184mcd/m, and the luminous time is 6.5 hours.Keep at 1480 ℃ and to fire, initial glorious degrees is 2280mcd/m, and the luminous time is more than 8 hours.Keep at 1500 ℃ and to fire, initial glorious degrees is 3210mcd/m, and the luminous time is tens hours.Keep at 1520 ℃ and to fire, initial glorious degrees is 3360mcd/m, and the luminous time is tens hours.Keep at 1530 ℃ and to fire, initial glorious degrees drops to 2100mcd/m, and the luminous time is ten hours.Keep at 1560 ℃ and to fire, initial glorious degrees is 540mcd/m, and the luminous time is 3 hours.
Example 7, get Al (OH) 79.6g, EuO 2.6g, SrCO 71.6g, HBO 0.618g.With these compound resulting mixtures, be pressed into wineglass.Fired 3 o'clock in 1500 ℃ High Temperature Furnaces Heating Apparatus nitrogen oxygen, take out the cooling back.Through the natural light irradiation several minutes, initial glorious degrees is 3200mcd/m, and fluorescent lifetime was greater than 15 hours.
Claims (10)
1, producing process for ceramic luminous material is that matrix, rare earth element are the mixture of activator by alkaline earth metal compound, through oxygen barrier heating, it is characterized in that: be heated in 1420～1560 ℃ of scopes, fire 1～4 hour after, the oxygen barrier cooling.
2, as the said producing process for ceramic luminous material of claim 1, it is characterized in that: oxygen barrier is heated to 1460～1530 ℃ of scopes and fires.
3, as the said producing process for ceramic luminous material of claim 2, it is characterized in that: oxygen barrier is heated to 1480～1520 ℃ of scopes and fires.
4, the producing process for ceramic luminous material of saying as claim 3 is characterized in that: oxygen barrier is cooled to below 600 ℃, could contact with air.
5, as claim 1 or 2 or 3 said producing process for ceramic luminous material, it is characterized in that: alkaline earth metal compound is aluminum oxide or aluminium hydroxide, also contains the compound of Sr, and activator is the rare earth element based on Eu.
6, as the said producing process for ceramic luminous material of claim 5, it is characterized in that: alkaline earth metal compound also contains the oxide compound of B.
7, as the said producing process for ceramic luminous material of claim 6, it is characterized in that: mixture contains GaO 5～10 ‰.
8, the goods of producing process for ceramic luminous material production, by alkaline earth metal compound is that matrix, rare earth element are the mixture of activator, it is characterized in that: the repressed shaping of mixture, oxygen barrier is heated to 1420～1560 ℃ again, yet fires the luminescent material goods of 1～4 hour one-tenth.
9, the goods of producing process for ceramic luminous material production, it is characterized in that: alkaline earth metal compound is aluminum oxide or aluminium hydroxide, also contains the compound of Sr, activator is rare earth element Eu, also contains the agent alive altogether of other rare earth elements.
10, the goods of producing process for ceramic luminous material production, by alkaline earth metal compound is that matrix, rare earth element are the mixture of activator, be heated to 1420～1560 ℃ through oxygen barrier, yet fire the ceramic luminescent material that became in 1～4 hour, again through pulverizing with other potteries or enamel or glaze material mixing and being fired into below 1300 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95106331 CN1122317A (en) | 1995-06-12 | 1995-06-12 | Producing process for ceramic luminous material and product |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95106331 CN1122317A (en) | 1995-06-12 | 1995-06-12 | Producing process for ceramic luminous material and product |
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| CN1122317A true CN1122317A (en) | 1996-05-15 |
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| CN 95106331 Pending CN1122317A (en) | 1995-06-12 | 1995-06-12 | Producing process for ceramic luminous material and product |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062538C (en) * | 1998-06-26 | 2001-02-28 | 山东伦博实业集团有限公司 | Energy accumulating luminous glaze and its preparing technology |
| CN109704735A (en) * | 2019-01-12 | 2019-05-03 | 韩山师范学院 | A kind of energy saving luminous ceramics and preparation method thereof |
-
1995
- 1995-06-12 CN CN 95106331 patent/CN1122317A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062538C (en) * | 1998-06-26 | 2001-02-28 | 山东伦博实业集团有限公司 | Energy accumulating luminous glaze and its preparing technology |
| CN109704735A (en) * | 2019-01-12 | 2019-05-03 | 韩山师范学院 | A kind of energy saving luminous ceramics and preparation method thereof |
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