Ba₄HfCl is an exotic halide ceramic compound combining barium, hafnium, and chlorine—a rare material family with limited commercial history. This compound belongs to the perovskite-related halide ceramic class and appears primarily in research contexts exploring advanced ionic conductors, solid-state electrolytes, or specialized optical/thermal applications where hafnium's refractory properties and chloride's ionic character are leveraged. Its practical adoption remains experimental; engineers would consider it only for niche applications requiring hafnium-based ceramics where chloride-containing phases offer specific electrochemical, thermal, or structural advantages over conventional alternatives.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 11.83 | GPa | — | ||
Poisson's Ratio(ν) | -0.03000 | - | — | ||
Shear Modulus(G) | 1.040 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 4.784 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 3.856 | µB | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 1.196 | eV/atom | — | ||
Formation Energy(ΔHf) | 0.5223 | eV/atom | — |