1737 Low Alkali Glass
Special Properties
- Near zero alkali content
- High thermal shock resistance
- Good flatness and surface quality
- Low thermal coefficient of expansion
Typical Applications
- Substrate for Filter or Mirror Coatings
- Thin Film Substrate for Electronic applications
- Active Matrix Flat Panel Displays (AMLCD)
- Electroluminescent Displays
- Optical Windows
- Sensor Technology
1737 glass is a near zero alkali alumino-silicate glass material with a high temperature and shock resistance. 1737 glass can withstand the rigorous cycles of the newer poly-silicon transistor processes. The special properties of 1737 low alkali speciality glass, besides its strain point of 666°C, allow special manufacturing processes for various electronic components. The technical glass also is a good choice to be used as an optical substrate for filter- or mirror coatings. 1737 glass from Corning is more durable than 7059 and it has an even lower level of alkali than the 7059 microsheet material. In most applications unannealed 1737F glass can even replace annealed 7059, resulting in considerable material cost savings to the user.
Specifications 1737 low alkali glass*
Show transmission curve of 1737 glass
Refractive Index
- nD = 1,5186 (589nm)
Density
- 2,54 g/cm3 (20°C)
Young's Modulus
- 7,14 x 103 kg/mm2
Coefficient of Thermal Expansion
- 37,6 x 10-7/ °C (0-300°C)
- 42,0 x 10-7/ °C (20-671°C)
Viscosity
- Working Point (104 dPas): 1312°C
- Softening Point (107,6 dPas): 975°C
- Annealing Point (1013 dPas): 721°C
- Strain Point (1014,5 dPas): 666°C
Electrical Properties
- Dielectric Constant 5,7 (20°C / 1 kHz)
Chemical Properties |
|||
|---|---|---|---|
Medium |
5% NaOH |
Na2CO3-0,02N |
5% HCL |
| Temp. (°C) | 95 | 95 | 95 |
| Reaction Time (h) | 6 | 6 | 24 |
| Weight loss (mg/cm2) |
1,76 | 0,17 | 0,46 |
Standard Thicknesses |
|||
|---|---|---|---|
Tk |
Tolerance |
Tk |
Tolerance |
| 0,5mm | ±0,05 | 0,7mm | ±0,07 |
| 1,1mm | ±0,1 | ||
*Please consider the "Notes on technical specifications"
Download PDF-Catalog