Lead-alkali-silica Glass vs. Baria-alkali-silica Glass
Both lead-alkali-silica glass and baria-alkali-silica glass are glass and glass-ceramics.
For each property being compared, the top bar is lead-alkali-silica glass and the bottom bar is baria-alkali-silica glass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 67 | |
| 80 |
| Flexural Strength, MPa | 34 | |
| 34 |
Thermal Properties
| Glass Transition Temperature, °C | 450 | |
| 470 |
| Thermal Expansion, µm/m-K | 9.0 | |
| 9.5 |
Electrical Properties
| Dielectric Constant (Relative Permittivity) At 1 Hz | 7.0 | |
| 7.0 |
| Electrical Dissipation At 1 Hz | 0.0024 | |
| 0.0034 |
| Electrical Dissipation At 1 MHz | 0.0018 | |
| 0.0022 |
| Electrical Resistivity Order of Magnitude, 10x Ω-m | 12 | |
| 12 |
Otherwise Unclassified Properties
| Density, g/cm3 | 3.1 | |
| 3.0 |
Common Calculations
| Stiffness to Weight: Axial, points | 12 | |
| 15 |
| Stiffness to Weight: Bending, points | 43 | |
| 48 |