CN101381203A - Component of molybdenum-containing sunalux glass and application - Google Patents
Component of molybdenum-containing sunalux glass and application Download PDFInfo
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- CN101381203A CN101381203A CNA2008102250580A CN200810225058A CN101381203A CN 101381203 A CN101381203 A CN 101381203A CN A2008102250580 A CNA2008102250580 A CN A2008102250580A CN 200810225058 A CN200810225058 A CN 200810225058A CN 101381203 A CN101381203 A CN 101381203A
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- vitaglass
- glass
- molybdenum
- molybdenum group
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Abstract
The invention relates to components and application of mlybdenum ultraviolet transmitting glass. The glass comprises the following components ( in percentage by weight of oxides): 62 to 65 percent of SiO2, 3 to 5 percent of Al2O3, 22 to 24 percent of B2O3, 5 to 7 percent of Na2O, 0.1 to 1 percent of Li2O, and 0.1 to 1 percent of ZnO. The glass has a coefficient of expansion close to that of metal molybdenum or kovar alloy and belongs to electric-vacuum glass. The glass is suitable to be used as materials for tube shells and optical windows for photoelectric tubes and photomultiplier tubes.
Description
Technical field
The present invention relates to a kind of component and application of molybdenum group vitaglass, belong to electric-vacuum glass.
Background technology
Just there is the manufacturer production vitaglass in China as far back as the phase at the beginning of the seventies in last century, but gas line, striped, sand point are a lot, anti-water chemistry stability is low, when thickness of glass is 1mm, wavelength is that the ultraviolet ray transmissivity at 253.7nm place only has 60%～70%, and the decay of uv-exposure transmitance is big, anti-water chemistry less stable, so far basal conditions does not all have much changes, and oeverall quality does not still reach the requirement of making high-end vacuum device such as photomultiplier etc.
Summary of the invention
For overcoming defective of the prior art, the invention provides a kind of new molybdenum group vitaglass component that is applied in short-wave band, make at wavelength to be that ultraviolet ray transmissivity, uv-exposure transmitance and the anti-water chemistry stability at 253.7nm place all obviously is improved.Specifically, the present invention relates to a kind of molybdenum group vitaglass, comprise following component (by the weight percent of oxide compound): SiO
2Be 62%～65%, Al
2O
3Be 3%～5%, B
2O
3Be 22%～24%, Na
2O is 5%～7%, Li
2O is 0.1%～1%, and ZnO is 0.1%～1%.
The present invention is guaranteeing to have introduced a small amount of Li in the glass ingredient under the prerequisite that the transmitance and the coefficient of expansion and processing performance meet the demands
2O and ZnO are with its filling glass network gap, chilled glass structure, plug ion migrating channels, to improve anti-water chemistry stability and uvioresistant exposure transmitance fade performance, the Li of Yin Ruing simultaneously
2O also plays fluxing action, has improved processing performance.And when composition designs the corresponding Al that improved
2O
3Content, so both helped the chilled glass structure also to help to improve anti-water chemistry stability and the uvioresistant transmitance fade performance that exposes.In addition, the present invention has improved the coefficient of expansion 50 * 10
-7/ ℃ about the anti-water chemistry stability of molybdenum group vitaglass.
This molybdenum group vitaglass can be directly and metal molybdenum or kovar alloy sealing-in, is that the ultraviolet ray transmissivity at 253.7nm place is more than or equal to 85% at wavelength.
This glass is applicable to the shell or the optical window material of phototube, photomultiplier.
Embodiment
According to a kind of molybdenum group vitaglass of the present invention, the weight percent of its main ingredient is: SiO
2Be 62%～65%, Al
2O
3Be 3%～5%, B
2O
3Be 22%～24%, Na
2O is 5%～7%, Li
2O is 0.1%～1%, and ZnO is 0.1%～1%.Because it is very big that ultraviolet ray transmissivity is influenced by the purity of material, any defect and impurity is the ultraviolet ray transmissivity of grievous injury material all, so the purity grade of materials used should be excellent pure level at least, and in batching and charging technology, use the instrument of plastics or stainless steel, the impurity K that in the glass production process, produces like this
2O and Fe
2O
3Can be controlled in few content, its weight percent all is controlled at below 0.02%.In order not influence the transmitance of vitaglass, the weight percent summation of its all impurity should not surpass 0.03%.
The specific embodiment of the invention is as follows:
Table one (embodiment 1 to embodiment 3) is for the invention provides the specific embodiment of glass ingredient.
Table one specific embodiment
| Following component be weight percentage (%) | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Silicon-dioxide (SiO 2) | 64.77 | 64.31 | 64.91 |
| Aluminum oxide (Al 2O 3) | 4.51 | 4.60 | 4.97 |
| Boron oxide (B 2O 3) | 22.66 | 23.54 | 22.18 |
| Sodium oxide (Na 2O) | 6.83 | 6.24 | 6.41 |
| Lithium Oxide 98min (Li 2O) | 0.41 | 0.51 | 0.64 |
| Zinc oxide (ZnO) | 0.81 | 0.79 | 0.87 |
| Potassium oxide (K 2O) | 0.0064 | 0.0053 | 0.0126 |
| Ferric oxide (Fe 2O 3) | 0.0036 | 0.0047 | 0.0074 |
Table two is the physical and chemical performance index of 3 embodiment correspondences in the table one
Table two embodiment physical and chemical performance index
| The physical and chemical performance index | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| The coefficient of expansion (* 10 -7/℃) | 50.49 | 50.12 | 50.40 |
| 253.7nm transmitance (%) (thickness of glass 1mm) | 87.13％ | 87.78％ | 87.08％ |
| Anti-water chemistry stability | The IV level | The IV level | The IV level |
| Softening temperature (℃) | 710 | 705 | 715 |
| Thermostability (℃) | 290 | 288 | 292 |
Table three is the uv-exposure transmitance index of 3 embodiment correspondences in the table one, this index is to be that the vitaglass sheet of 1mm places apart from the position of 500W ultraviolet lamp 20cm and shines with thickness, is the ultraviolet ray transmissivity at 253.7nm place at the same position place of sheet glass test wavelength.
Table three uv-exposure transmitance
Table four is the synopsis of table one, and it is for being different from molybdenum group vitaglass component of the present invention.
Table four comparative example
| Following component be weight percentage (%) | Comparative example |
| Silicon-dioxide (SiO 2) | 63.3 |
| Aluminum oxide (Al 2O 3) | 3.1 |
| Boron oxide (B 2O 3) | 26.18 |
| Sodium oxide (Na 2O) | 7.4 |
| Potassium oxide (K 2O) | 0.0106 |
| Ferric oxide (Fe 2O 3) | 0.0094 |
Table five is the physical and chemical performance index of table four comparative example
Table five comparative example physical and chemical performance index
| The coefficient of expansion (* 10 -7/℃) | 50.6 |
| 253.7nm transmitance (%) (thickness of glass 1mm) | 86.02％ |
| Anti-water chemistry stability | The V level |
| Softening temperature (℃) | 700 |
| Thermostability (℃) | 284.5 |
Table six is the uv-exposure transmitance index of table four comparative example, and the test of this index and table three method therefor are in full accord.
The uv-exposure transmitance of table six comparative example
Compare and can find with comparative example, the present invention is that the ultraviolet ray transmissivity at 253.7nm place is greater than 85%, because the present invention has introduced a certain amount of Lithium Oxide 98min (Li at wavelength
2O) and zinc oxide (ZnO), the anti-water chemistry stability of glass obviously improves, and uv-exposure transmitance performance also obviously improves simultaneously.
The glass sample of table one and table four, all be with following method manufacturing: each component composition is got the raw material of same batch of same producer, and the weight percent uniform mixing according to corresponding is blow molded into glass bulb after quartz crucible is founded, annealing, finished product warehouse-in.
Table two and table five relate to the physical and chemical performance index of glass, all are to test under the same conditions, and the testing method of concrete foundation is:
The coefficient of expansion: GB/T 16920-1997 " mensuration of glass mean coefficient of linear thermal expansion ".
Ultraviolet ray transmissivity: GB/T 7962.12-1987 " transmission measurement method in the colouless optical glass testing method spectrum ".
Anti-water chemistry stability: GB/T 6582-1997 " glass is in 98 ℃ of water-proof particle test methods and classification ".
Softening temperature: SJ/T 11038-96 " testing method of electronic glass softening temperature ".
Thermostability: GB/T 15727-1995 " Laboratory Instruments glass heat impact test method (bar-shaped method) ".
Claims (10)
1. a molybdenum group vitaglass is characterized in that comprising component by weight percentage: SiO
2Be 62%～65%, Al
2O
3Be 3%～5%, B
2O
3Be 22%～24%, Na
2O is 5%～7%, Li
2O is 0.1%～1%, and ZnO is 0.1%～1%.
2. molybdenum group vitaglass as claimed in claim 1 is characterized in that ultraviolet ray transmissivity is more than 85%.
3. molybdenum group vitaglass as claimed in claim 1 is characterized in that anti-water chemistry stability reaches the IV level.
4. molybdenum group vitaglass as claimed in claim 1 is characterized in that the weight percent summation of impurities in its component is no more than 0.03%.
5. molybdenum group vitaglass as claimed in claim 1 or 2 is characterized in that impurity K
2O and Fe
2O
3Weight percent all be controlled at below 0.02%.
6. molybdenum group vitaglass as claimed in claim 1 or 2, it is pure to it is characterized in that the material purity that uses is at least top grade.
7. molybdenum group vitaglass as claimed in claim 1 or 2, it is characterized in that can be directly and the metal molybdenum sealing-in.
8. molybdenum group vitaglass as claimed in claim 1 or 2, it is characterized in that can be directly and the kovar alloy sealing-in.
9. molybdenum group vitaglass as claimed in claim 1 or 2 is characterized in that using in making photomultiplier.
10. molybdenum group vitaglass as claimed in claim 1 or 2 is characterized in that using in making phototube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102250580A CN101381203B (en) | 2008-10-27 | 2008-10-27 | Component of molybdenum-containing sunalux glass and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102250580A CN101381203B (en) | 2008-10-27 | 2008-10-27 | Component of molybdenum-containing sunalux glass and application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101381203A true CN101381203A (en) | 2009-03-11 |
| CN101381203B CN101381203B (en) | 2011-02-09 |
Family
ID=40461287
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102250580A Active CN101381203B (en) | 2008-10-27 | 2008-10-27 | Component of molybdenum-containing sunalux glass and application |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102135631A (en) * | 2010-12-15 | 2011-07-27 | 安徽华东光电技术研究所 | Miniature high-sensitivity ultraviolet detector and manufacturing method thereof |
| CN108341594A (en) * | 2018-04-27 | 2018-07-31 | 海南中航特玻科技有限公司 | A kind of effective high borosilicate glass material of photomultiplier transit |
| CN110325483A (en) * | 2017-02-24 | 2019-10-11 | 日本电气硝子株式会社 | Optical glass |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10000839C1 (en) * | 2000-01-12 | 2001-05-10 | Schott Glas | Alkali-free aluminoborosilicate glass used as substrate glass in displays and in thin layer photovoltaics contains oxides of silicon, boron, aluminum, magnesium, calcium, strontium, barium and zinc |
| DE102004027119A1 (en) * | 2003-06-06 | 2004-12-30 | Schott Ag | Production of a UV-absorbed glass used in the production of gas discharge lamps, fluorescent lamps, xenon lamps, LCD displays, computer monitors and telephone displays comprises melting a raw material and producing a melt |
| CN1938238A (en) * | 2004-04-05 | 2007-03-28 | 日本电气硝子株式会社 | Illuminating glass |
| CN1298650C (en) * | 2005-03-18 | 2007-02-07 | 中国科学院上海光学精密机械研究所 | Nano bismuth cluster doped silicon dioxide base optical glass and its preparing method |
-
2008
- 2008-10-27 CN CN2008102250580A patent/CN101381203B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102135631A (en) * | 2010-12-15 | 2011-07-27 | 安徽华东光电技术研究所 | Miniature high-sensitivity ultraviolet detector and manufacturing method thereof |
| CN110325483A (en) * | 2017-02-24 | 2019-10-11 | 日本电气硝子株式会社 | Optical glass |
| CN108341594A (en) * | 2018-04-27 | 2018-07-31 | 海南中航特玻科技有限公司 | A kind of effective high borosilicate glass material of photomultiplier transit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101381203B (en) | 2011-02-09 |
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Address after: 100070, room 3, building 128, No. 903 South Fourth Ring Road, Beijing, Fengtai District Patentee after: Beijing Hamamatsu Photonics Technology Co., Ltd. Address before: 100070, No. 18, No. 11, No. 188, South Fourth Ring Road, Fengtai District, Beijing Patentee before: Beijing Hamamatsu Photonics Technology Co., Ltd. |