K2AgAs
metal· K2AgAs
K2AgAs is an intermetallic compound combining potassium, silver, and arsenic in a defined stoichiometric ratio. This is a specialized research material rather than a commodity engineering material, studied primarily for its electrical and thermal properties in solid-state physics and materials chemistry contexts. The compound belongs to the family of ternary metal arsenides, which are of interest in semiconductor physics, thermoelectric device development, and fundamental studies of electronic structure in multi-element systems.
thermoelectric materials researchsemiconductor physics studiessolid-state electronic devicesexperimental metallurgylow-temperature conductivity applicationsmaterials property characterization
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 24.07 | GPa | — | ||
Poisson's Ratio(ν) | 0.2800 | - | — | ||
Shear Modulus(G) | 13.64 | GPa | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 3.677 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 1.287 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)3 entries | 12.68 | - | — | ||
| ↳ | 13.47 | - | — | ||
| ↳ | 9.519 range 7.119–11.92median of 2 measurements | - | — | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | — | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000150 | C/m² | — | ||
Seebeck Coefficient(S) | -158.9 | µV/K | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.01350 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.4762 | eV/atom | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
Export Control
RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.