KAlF₄ is a potassium aluminum fluoride compound that belongs to the fluoride ceramic family, characterized by ionic bonding between alkali metal and aluminum fluoride components. This material is primarily of research interest in solid-state chemistry and materials science, particularly for applications requiring fluoride-based ceramics with moderate stiffness and low density. Engineers would consider KAlF₄ in specialized contexts such as optical coatings, thermal barrier systems, or ionic conductor development, where its fluoride chemistry offers advantages over conventional oxide ceramics in terms of chemical stability or ionic transport properties.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 46.33 | GPa | — | ||
| ↳ | 68.58 | GPa | — | ||
Poisson's Ratio(ν) | 0.3600 | - | — | ||
Shear Modulus(G)2 entries | 18.39 | GPa | — | ||
| ↳ | 34.95 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 2.841 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 7.298 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 10.63 | - | — | ||
| ↳ | 5.112 | - | — | ||
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) | -120.6 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -3.566 | eV/atom | — |