KErS2
ceramic· JVASP-1483· KErS2
KErS2 is a rare-earth kernesite ceramic compound combining potassium, erbium, and sulfur in a sulfide-based ceramic matrix. This material belongs to the family of rare-earth sulfide ceramics, which are primarily explored in research and specialized applications requiring high-temperature stability and chemical resistance. KErS2 is not widely commercialized but represents the potential of rare-earth sulfide systems for niche applications in extreme environments where conventional oxides or nitrides may be insufficient.
high-temperature coatings (research)chemical corrosion barriersrare-earth sulfide compositesthermal management applications (experimental)aerospace component protectionspecialty ceramics research
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 7,177.9 | ksi | — | ||
Poisson's Ratio(ν) | 0.2300 | - | — | ||
Shear Modulus(G) | 4,903.7 | ksi | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.1615 | lb/in³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 2.362 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 14.19 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -254 | µV/K | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -2.068 | eV/atom | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
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.