Strontium fluoride (SrF₂) is an inorganic ceramic compound belonging to the fluorite family of ionic ceramics, characterized by high transparency and thermal stability. It is widely used in optical and infrared applications—particularly as window material, lens elements, and detector components in thermal imaging systems and spectroscopy equipment operating in the mid- to far-infrared range. Engineers select SrF₂ over competing optical ceramics (such as CaF₂ or BaF₂) when thermal shock resistance, mechanical stability, and broad transmission windows across infrared wavelengths are critical; it also finds niche applications in nuclear and high-energy physics instrumentation where radiation hardness and scintillation properties are valued.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)3 entries | 9,431 | ksi | — | ||
| ↳ | 9,431 | ksi | — | ||
| ↳ | 10,645.8 | ksi | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 0.09460 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | ksi | — | ||
Poisson's Ratio(ν)2 entries | 0.2879 | - | — | ||
| ↳ | 0.3000 | - | — | ||
Shear Modulus(G)3 entries | 4,658.9 | ksi | — | ||
| ↳ | 4,658.9 | ksi | — | ||
| ↳ | 5,021.2 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.1533 | lb/in³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 7.077 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 6.686 | - | — | ||
| ↳ | 4.790 range 2.281–7.300median of 2 measurements | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -136.5 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.00320 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -4.205 | eV/atom | — | ||
| ↳ | -4.157 | eV/atom | — |