Rubidium bromide (RbBr) is an ionic halide ceramic compound belonging to the alkali halide family, characterized by its rock-salt crystal structure and relatively low density for a ceramic. Historically used in specialized optical and photonic applications where its infrared transparency and hygroscopic stability make it valuable for infrared optics, scintillation detectors, and radiation detection systems. RbBr is less common than other alkali halides (such as NaCl or KBr) in mainstream engineering but remains relevant in research and niche high-performance applications where its specific optical and thermal properties provide advantages over conventional alternatives.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)3 entries | 2,000.4 | ksi | — | ||
| ↳ | 2,000.4 | ksi | — | ||
| ↳ | 2,252.4 | ksi | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 1.417 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | ksi | — | ||
Poisson's Ratio(ν)2 entries | 0.2974 | - | — | ||
| ↳ | 0.3000 | - | — | ||
Shear Modulus(G)3 entries | 937.3 | ksi | — | ||
| ↳ | 937.3 | ksi | — | ||
| ↳ | 1,377.9 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.1228 | lb/in³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 7.650 | eV | — | ||
| ↳ | 4.436 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)3 entries | 5.690 | - | — | ||
| ↳ | 4.705 | - | — | ||
| ↳ | 3.954 range 2.588–5.320median of 2 measurements | - | — | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | — | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -103.1 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -2.045 | eV/atom | — | ||
| ↳ | -1.866 | eV/atom | — |