Bismuth fluoride (BiF₂) is an ionic ceramic compound combining bismuth and fluorine, belonging to the broader family of metal fluorides used in specialized optical and electronic applications. While primarily of research and development interest rather than high-volume industrial production, BiF₂ and related bismuth fluorides are investigated for their potential in infrared optics, solid-state electrolytes, and photonic materials where their unique refractive properties and chemical stability offer advantages over conventional alternatives. Engineers consider this material class when standard optical ceramics (like fused silica or sapphire) are inadequate for specific wavelength ranges or when ionic conductivity requirements demand fluoride-based systems.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 93.59 | GPa | — | ||
Poisson's Ratio(ν) | 0.3500 | - | — | ||
Shear Modulus(G) | 43.35 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 7.933 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.1877 | eV/atom | — | ||
Formation Energy(ΔHf) | -2.116 | eV/atom | — |