Table 6.
Different levels of cryogenic temperatures used in the polymer–matrix composites adapted from reference [171].
| Type | Kelvin (K) |
Celsius (°C) |
Category of Temperatures |
|---|---|---|---|
| Normal room temperature | 296 | 23 | Room Temperature |
| The temperature of arctic conditions | 223 | −50 | Low Temperature |
| Temperature for aircraft components | 216 | −57 | Low Temperature |
| Carbon dioxide (dry ice) | 195 | −78 | Low Temperature |
| Earth’s lowest temperature | 184 | −89 | Low Temperature |
| Liquid nitrogen (LN2) | 77 | −196 | Cryogenic Temperature |
| Liquid oxygen (LOX) | 90 | −183 | Cryogenic Temperature |
| Liquid hydrogen (LH2) | 20 | −253 | Cryogenic Temperature |
| Liquid helium (LHe) | 4.2 | −269 | Cryogenic Temperature |