BaY2F8 is a barium yttrium fluoride ceramic compound belonging to the rare-earth fluoride family, valued for its optical transparency and thermal stability at elevated temperatures. This material is primarily used in advanced photonics, laser systems, and high-temperature optical applications where conventional glasses would fail, particularly in infrared windows and scintillator detector systems. Engineers select BaY2F8 when requiring a chemically stable, dense ceramic with minimal thermal expansion and good radiation hardness—making it suitable for specialized defense, aerospace, and nuclear instrumentation contexts where conventional optical materials would degrade.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 68.80 | GPa | DFT · OptB88vdW | ||
Poisson's Ratio(ν) | 0.2800 | - | DFT · OptB88vdW | ||
Shear Modulus(G) | 36.38 | GPa | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 4.165 | kg/m³ | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 7.307 | eV | DFT · OptB88vdW | ||
| ↳ | 8.467 | eV | DFT · TBmBJ | ||
Dielectric Constant (Relative Permittivity)(εr) | 10.49 | - | DFT · OptB88vdW | ||
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries | 2.594 | - | DFT · OptB88vdW | ||
| ↳ | 2.252 | - | DFT · TBmBJ | ||
Magnetic Moment(μB) | 0.000 | µB | DFT · OptB88vdW | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | DFT · OptB88vdW | ||
Thermoelectric Power Factor(PF)2 entries | 0.000978 | W/(m·K²) | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 0.000128 | W/(m·K²) | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Seebeck Coefficient(S)2 entries | -292.4 | μV/K | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 396.6 | μV/K | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Spectroscopic Limited Maximum Efficiency (SLME)(SLME) | 0.000 | % | DFT · TBmBJ |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.1214 | eV/atom | DFT · OptB88vdW | ||
Formation Energy(ΔHf) | -4.196 | 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