Thermal Conductivity of Materials
Comprehensive Guide
Compare MaterialsMaterial selection for thermal management requires understanding conductivity values. 変換元 heat sinks to insulation, choosing the right material depends on whether you want to conduct or block heat.
Materials by Application
| Application | Material | k (W/m·K) |
|---|---|---|
| Heat sinks | Copper/Aluminum | 205-400 |
| Cookware | Copper, Cast iron | 50-400 |
| Thermal interface | Thermal paste | 1-10 |
| Electronics PCB | FR-4 | 0.3 |
| Building walls | Concrete | 1.0-1.8 |
| Insulation | Polyurethane foam | 0.02-0.03 |
まとめ
Material thermal conductivity spans five orders of magnitude—from diamond at 1000+ W/m·K to aerogel at 0.01. Engineers balance conductivity with cost, weight, and other properties. Copper excels for heat transfer; foams excel for insulation; ceramics bridge both worlds for specialized applications.