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| TECHNICAL GLASSES - PROPERTIES |
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Table of properties of different technical glasses.
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QUARTZ |
BOROSILICATE |
SODA LIME |
GLASS CERAMIC |
| MATERIAL PROPERTIES |
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| Density |
gr/cm3 |
2.2 |
2.23 |
2.50 |
2.53 |
| MECHANICAL PROPERTIES |
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| E-modulus |
1010Pa |
7.2 |
6.3 |
7.3 |
9.1 |
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| Poisson's ratio |
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0.17 |
0.20 |
0.22 |
0.24 |
| THERMAL PROPERTIES |
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| Transformation temperature |
°C |
1050 |
525 |
525 |
- |
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| Thermal expansion |
10-6/K |
.55 |
3.3 |
9.1 |
0.05 |
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| Thermal conductivity |
W/mK |
1.4 |
1.2 |
1.1 |
1.7 |
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| Max. use temperature |
°C |
1000 |
500 |
450 |
600 |
| ELECTRICAL PROPERTIES |
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| Specific restistance at 250°C |
Ohm.cm |
1012 |
108 |
107 |
106 |
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