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Eagle 2000
| Description | Alkaline Earth Aluminosilicate |
| Forms Available: | Fusion drawn sheet |
| Principal Uses: | Substrates for Active Matrix flat panel displays |
PROPERTIES
| Thermal Expansion: |
Expansion (0 - 300°C)
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31.8 x 10-7/°C
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| Room Temperature to Setting Point (25 - 670°C) | 36.1 x 10-7/°C | |
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| Thermal Conductivity: |
Thermal conductivity is a calculated value, and is equal to the product of the thermal diffusivity, specific heat, and density of the glass. |
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| Optical: |
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| Birefringence Constant | 327 (nm/cm)/(kg/mm2) | |
| Mechanical: | Density (20°C, 68°F) |
2.37 g/cm3
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| Young's Modulus |
7.06 103 kg/mm2
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Poisson's Ratio
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0.23
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| Shear Modulus |
2.86 103 kg/mm2
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Chemical:
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Weathering:
1 |
Weathering is defined as corrosion by atmospheric-borne gases and vapor such as water and carbon dioxide. Glasses rated 1 will almost never show weathering effects; those rated 2 will occasionally be troublesome, particularly if weathering products cannot be removed; those rated 3 require more careful consideration.
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Durability
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Durability is measured via weight loss per surface area after immersion. Values are highly dependent upon actual testing conditions. Data is reported for Code 2000F and Code 1737F glasses run concurrently. Unless otherwise noted, concentrations refer to weight percent.
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Reagent
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Time
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Temp
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Weight Loss (mg/cm2)
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Code 2000F
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Code 1737F
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HCl -5%
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24 hrs.
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95°C
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0.30
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0.46
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HNO3 - 1M
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24 hrs.
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95°C
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0.17
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0.24
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HF - 10%
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20 min.
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22°C
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3.71
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6.34
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NH4F.HF - 10%
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20 min.
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22°C
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0.75
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1.17
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1 HF: 10HNO3
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3 min.
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25°C
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1.35
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2.01
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1 HF: 100HNO3
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3 min.
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25°C
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0.40
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0.46
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DI H2O
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24 hrs.
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95°C
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0.00
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0.01
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Na2CO3 - 0.02N
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6 hrs.
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95°C
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0.14
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0.17
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NaOH - 5%
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6 hrs.
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95°C
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1.61
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1.76
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Total alkali content is approximately: 0.1 wt%
(Typical < 0.06 wt%) |
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| Electrical: | Log10 Volume Resistivity |
12.5
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(250°C, 482°F)
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10.5
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(350°C, 662°F)
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8.5
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(500°C, 932°F)
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| Dielectric Constant: 5.18 (20°C/68°F - 1 kHz) |
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| Loss Tangent: 0.40% (20°C/68°F - 1 kHz) |
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| Viscosity: | Working Point (104 poises) |
1321°C
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2410°F |
| Softening Point (107.6 poises) |
985°C
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1805°F | |
| Annealing Point (1013 poises) |
722°C
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1332°F | |
| Strain Point (1014.5 poises) |
666°C
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1231°F | |
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| Transmittance: |
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