BaAl₂B₂O₇ is a barium aluminum borate ceramic compound belonging to the oxide ceramic family, combining borate and aluminate chemistry for specialized high-temperature applications. This material is primarily investigated for optical and refractory applications where its borate-oxide network structure provides thermal stability and potential transparency or luminescent properties. It represents an emerging research compound rather than a commodity ceramic, with applications targeted toward advanced optics, thermal barriers, and specialty glass-ceramics where the combination of alkaline earth (Ba), aluminum, and borate phases offers advantages over conventional single-phase ceramics.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.1070 | lb/in³ | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 4.691 | eV | DFT · OptB88vdW | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 6.225 | - | DFT · OptB88vdW | ||
| ↳ | 4.226 range 2.522–5.930median of 2 measurements | - | DFT · PBEsol | ||
High-Frequency Dielectric Constant (ε∞)(ε∞) | 2.584 | - | DFT · OptB88vdW | ||
Magnetic Moment(μB) | 0.000 | µB | DFT · OptB88vdW | ||
Piezoelectric Modulus(eij)2 entries | 0.1979 | C/m² | DFT · OptB88vdW | ||
| ↳ | 0.2732 | C/m² | DFT · PBE | ||
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | DFT · PBE | ||
Thermoelectric Power Factor(PF)2 entries | 0.000925 | W/(m·K²) | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 0.000482 | W/(m·K²) | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Seebeck Coefficient(S)2 entries | -141 | μV/K | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 455.4 | μV/K | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | DFT · OptB88vdW | ||
Formation Energy(ΔHf) | -3.032 | 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