KLiBeF4
ceramic· JVASP-21161· KLiBeF4
KLiBeF4 is a mixed-alkali fluoride ceramic compound combining potassium, lithium, beryllium, and fluorine elements. This material is primarily explored in optical and laser applications due to its fluoride composition, which offers transparency in the ultraviolet and infrared regions and low refractive index characteristics. It is a research-phase material rather than a commodity engineering ceramic, positioned within the wider family of rare-earth-doped fluoride crystals used for solid-state laser hosts and specialized optical components where conventional glasses and ceramics are insufficient.
solid-state laser hostsoptical crystalsUV-IR transparent opticsphotonics researchhigh-energy laser systemsspecialized optical coatings
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 37.77 | GPa | — | ||
Poisson's Ratio(ν) | 0.3000 | - | — | ||
Shear Modulus(G) | 18.04 | GPa | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 2.274 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 7.120 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 4.939 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.06821 | C/m² | — | ||
Seebeck Coefficient(S) | -138.8 | 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) | -3.291 | 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.