BaF2
ceramic· BaF2
Barium fluoride (BaF₂) is an ionic ceramic compound valued for its optical transparency across a broad spectrum, from the ultraviolet through infrared regions. It is widely deployed in optical systems, laser windows, and spectroscopic instruments where conventional glass would absorb or scatter radiation. Engineers select BaF₂ over alternatives like CaF₂ or fused silica when demanding applications require excellent transmission in both near-UV and mid-infrared bands, combined with reasonable mechanical stiffness and resistance to thermal shock.
optical windows and lensesinfrared spectroscopylaser optics and coatingshigh-energy physics detectorsthermal imaging systemsUV-visible-IR broadband transmission
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)3 entries | 54.43 | GPa | — | ||
| ↳ | 54.43 | GPa | — | ||
| ↳ | 70.68 | GPa | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 0.000744 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | Pa | — | ||
Poisson's Ratio(ν)2 entries | 0.3076 | - | — | ||
| ↳ | 0.4600 | - | — | ||
Shear Modulus(G)3 entries | 24.03 | GPa | — | ||
| ↳ | 24.03 | GPa | — | ||
| ↳ | 16.91 | GPa | — |
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 | |
|---|---|---|---|---|---|
Density(ρ) | 5.651 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 9.100 | eV | — | ||
| ↳ | 5.865 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 926.3 | - | — | ||
| ↳ | 5.284 range 2.398–8.170median of 2 measurements | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -180.5 | 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) | 0.08010 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -4.176 | eV/atom | — | ||
| ↳ | -3.980 | eV/atom | — |
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
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.