CaCo₄O₈ is an advanced ceramic compound in the calcium-cobalt oxide family, representing a mixed-valence transition metal oxide with potential for high-temperature and electronic applications. This material is primarily of research and developmental interest rather than established commercial production, studied for its structural stability and potential use in energy storage, catalysis, or electronic ceramics where cobalt-containing oxides offer unique redox properties. Engineers would consider this material when conventional ceramics prove insufficient for high-temperature oxidation resistance or when the specific electronic properties of cobalt-doped calcium oxides align with functional ceramic requirements.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 28,375.2 | ksi | DFT · OptB88vdW | ||
Poisson's Ratio(ν) | 0.2800 | - | DFT · OptB88vdW | ||
Shear Modulus(G) | 15,070.9 | ksi | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.2004 | lb/in³ | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 0.1680 | eV | DFT · OptB88vdW | ||
| ↳ | 0.1570 | eV | DFT · TBmBJ | ||
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries | 26.16 | - | DFT · OptB88vdW | ||
| ↳ | 57.47 | - | DFT · TBmBJ | ||
Magnetic Moment(μB) | 0.000 | µB | DFT · OptB88vdW | ||
Thermoelectric Power Factor(PF)2 entries | 0.000392 | W/(m·K²) | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 0.000488 | W/(m·K²) | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Seebeck Coefficient(S)2 entries | 54.08 | μV/K | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 73.30 | μV/K | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Spectroscopic Limited Maximum Efficiency (SLME)(SLME) | 5.840 | % | DFT · TBmBJ |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | DFT · OptB88vdW | ||
Formation Energy(ΔHf) | -1.531 | eV/atom | DFT · OptB88vdW |
Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data