Ca2.7Na0.3Co4O9 is a layered cobalt oxide ceramic belonging to the misfit layer compound family, synthesized as a research material for thermoelectric applications. This sodium-doped calcium cobalt oxide is investigated primarily in materials science labs as a promising candidate for medium-temperature thermoelectric devices, where the layered crystal structure and transition-metal composition support electrical conductivity while maintaining low lattice thermal conductivity. While not yet widely deployed in commercial products, compounds in this family are of strong industrial interest for waste heat recovery systems and solid-state power generation where conventional thermoelectric materials reach their temperature limits.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Thermal Conductivity(k)2 entries | 1.156 | BTU/(hr·ft·°F) | — | ||
| ↳ | 1.156 | BTU/(hr·ft·°F) | 427°C |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Electrical Conductivity(σ) | 124.9 | S/cm | 427°C | ||
Electrical Resistivity(ρe) | 0.0000801 | Ω·m | 427°C | ||
Thermoelectric Power Factor(PF) | 0.000295 | W/(m·K²) | 427°C | ||
Seebeck Coefficient(S) | 153.6 | μV/K | 427°C | ||
Thermoelectric Figure of Merit(zT) | 0.1031 | - | 427°C |