HgI2
ceramicMercuric iodide (HgI₂) is an inorganic ceramic compound that exists as a layered crystal structure, making it notable for its anisotropic mechanical and electronic properties. Historically used in radiation detection applications and as a scintillation material, HgI₂ remains of interest in the research community for high-energy physics experiments and medical imaging where its density and atomic composition offer advantages for detecting gamma rays and X-rays. While primarily a specialized research material rather than a commodity engineering ceramic, it represents the class of heavy metal halides being explored for next-generation detector technologies in fields where conventional scintillators reach their performance limits.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 10.77 | GPa | — | ||
Exfoliation Energy(Eexf) | 132.3 | meV/atom | — | ||
Poisson's Ratio(ν) | 0.3000 | - | — | ||
Shear Modulus(G) | 5.460 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 6.134 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 1.045 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 13.74 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij)2 entries | 0.08206 | C/m² | — | ||
| ↳ | 0.000 | C/m² | — | ||
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | — | ||
Seebeck Coefficient(S) | -65.32 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000900 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -0.3641 | eV/atom | — | ||
| ↳ | -0.1538 | eV/atom | — |