3D Printer Borosilicate Glass Plate 214 x 200 x 3.3 mm (8.4 x 8 x. 13)
Low-expansion Borosilicate (LEGB) Windows are very useful as windows in many harsh applications because borosilicate glass has excellent chemical and thermal-shock resistance and has a maximum working temperature of 500° C so are excellent for use in high powered light source applications or an excellent choice for cold and hot mirror substrates.
Borosilicate windows can also be a good substrate for optical flats as it has low expansion properties and therefore maintains its flatness in different environmental conditions.
High temperature load capacity:
- up to 550° C permanent load
- up to 600° C temporarily (< 10h)
Low thermal coefficient of expansion
Thermal coefficient matches silicon
(anodic bonding)
High thermal shock resistance
Clear, practically colorless appearance
Low fluorescence
High UV-Transmission
High chemical resistance against acids,
Bases and organic substances
Low alkali content in the glass composition
Low specific weight
BOROSILICATE FLOAT GLASS 3.3 application
Substrates for dielectric coatings
Lighting applications
Optical filter coating substrates
Wafer substrates
Anodic bonding applications
Biotechnology
Photovoltaics
Environmental technology
Harsh environments
Neutron absorbers
Measurement and sensor technology
Any enquires, please feel free to contact me; )
Mobile: 86-15875046064(Jack Liang)
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Mechanical properties |
|
|
Density (g/cm3) (at 25°C) |
2.23±0.02 |
|
Knoop hardness |
480 |
|
Flexure strength |
24Mpa |
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Thermodynamic properties |
|
|
Coefficient of thermal expansion (α) (0-300°C) |
3.3±0.1×10-6 |
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Softening point (°C) |
830±10 |
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Strain point (°C) |
521±10 |
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Specific heat capacity |
(2-100°C)0.83KJ×(kg×K)-1 |
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Thermal conductivity |
1.2W×(m×k)-1 |
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Thermal shock resistance(K) |
300 |
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Temperature performance(K) |
200 |
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Maximum working temperature |
(>10h, 600°C), (>10h, 550°C) |
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Chemical properties |
|
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Water resistence |
ISO719/DIN12111, HGB1
ISO720, HGA1 |
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Acid resistance |
ISO1776/DIN12116, 1 |
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Alkali resistance |
ISO695/DIN52322, A2 |
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Optical properties |
|
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Refractive index |
Nd: 1.47379 |
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Transmittance (5mm) |
>92% |
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Electrical properties |
|
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Specific resistance 1g |
250°C, 8.0Ω×cm |
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Dielectric loss |
Tan , 38×(10)-4 |
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Dielectric Constant |
4.7 |
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Chemical component |
|
|
SiO2 |
79-82% |
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B2O3 |
8-14% |
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Na2O |
2-4% |
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Al2O3 |
1-6% |