6. Thermal conductivity
Thermal conductivity k is the amount of heat that flows in 1 second via 1 u surface area of plate when provided 1K temperature difference on both sides of the 1m thickness plate.
| Thermal conductivity of various material | ||
|---|---|---|
| Material | t(℃) |  |
|
Acrylic |
Normal temperature |
0.17-0.25 |
|
Alumina |
Normal temperature |
21 |
|
800 |
7 |
|
|
Sulphur (orthorhombic) |
20 |
0.27 |
|
Monocline |
100 |
0.16-0.17 |
|
Amorphous |
0 |
0.2 |
|
Mica |
100-600 |
0.55-0.79 |
|
Paper |
Normal temperature |
0.06 |
|
Glass Soda |
Normal temperature |
0.55-0.75 |
|
Lead |
15 |
0.6 |
|
Pyrex |
30-75 |
1.1 |
|
Silicon |
0 |
168 |
|
Germanium |
0 |
67 |
|
Ice |
0 |
2.2 |
|
Rubber (hardness) |
0 |
0.2 |
|
Soft |
Normal temperature |
0.1-0.2 |
|
Sponge |
25 |
0.04 |
|
Magnetism |
Normal temperature |
1.5 |
|
Crystalll in axis |
70 |
9.3 |
|
|
70 |
5.4 |
|
Silica glass |
0 |
1.4 |
|
100 |
1.9 |
|
|
SeleniumAmorphous |
0 |
0.43 |
|
CarbonGraphite |
0 |
80-230 |
|
300 |
50-130 |
|
|
700 |
35-70 |
|
|
CarbonAmorphous |
0 |
1.5 |
|
300 |
2.2 |
|
|
700 |
2.5 |
|
|
Paraffin |
Normal temperature |
0.24 |
|
Fiber |
50 |
0.2-0.3 |
|
Polyethylene |
Normal temperature |
0.25-0.34 |
|
Polystyrene |
Normal temperature |
0.08-0.12 |
|
Calcitein axis |
0 |
5.39 |
|
|
0 |
4.51 |
|
Fluorite |
0 |
10.3 |
in axis