Sodium iodide (Na₂I) is an ionic ceramic compound belonging to the halide salt family, characterized by relatively low stiffness and high Poisson's ratio typical of weakly bonded ionic materials. While Na₂I itself sees limited industrial structural use, it is primarily encountered in research contexts as a scintillation detector material and in specialized optical applications where its transparency to certain wavelengths is exploited; the halide ceramic family more broadly is valued in radiation detection, X-ray imaging, and high-energy physics experiments where alternatives like NaI(Tl) dominate commercial deployment.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 9.540 | GPa | DFT · OptB88vdW | ||
Poisson's Ratio(ν) | 0.4800 | - | DFT · OptB88vdW | ||
Shear Modulus(G) | 1.450 | GPa | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 2.293 | kg/m³ | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | DFT · OptB88vdW | ||
Magnetic Moment(μB) | 0.000 | µB | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.3801 | eV/atom | DFT · OptB88vdW | ||
Formation Energy(ΔHf) | -0.5353 | 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