Much less deformation in the heating process than soda-lime glass.
Small variations in thermal shrinkage after the heating process. Suits processes for large-size substrates.
| PV200 | AS Soda-lime glass | |
THERMAL CHARACTERISTICS | |||
Thermal Expansion Coefficient (50~350 °C,10-7/°C) | 83 | 87 | |
Strain Point (°C) | 570 | 511 | |
Softening Point (°C) | 830 | 735 | |
Annealing Point (°C) | 620 | 554 | |
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MECHANICAL CHARACTERISTICS | |||
Density (g/m³) | 2.77 | 2.49 | |
Young's Modulus (Gpa) | 76 | 72 | |
Shear Modulus (Gpa) | 31 | 29 | |
Poisson's Ratio | 0.21 | 0.21 | |
| |||
ELECTRICAL CHARACTERISTICS | |||
Bulk Resistivity at 150°C (logρ(Ω・㎝)) | 12 | 8.5 | |
Dielectric Constant at 1MHz | 7.9 | 7.6 | |
| |||
OPTICAL COMPOSITION | |||
Refractive Index ND | 1.55 | 1.52 | |