BaAl2O4
ceramic· BaAl2O4
Barium aluminate (BaAl2O4) is an advanced ceramic compound belonging to the aluminate family, valued for its thermal stability and optical properties. It is primarily used in phosphor applications, particularly as a host material for rare-earth dopants in fluorescent lamps, cathode ray tubes, and photoluminescent devices. Engineers select this material when requiring a ceramic with good chemical durability and the ability to support luminescent activators, making it especially relevant for lighting and display technologies where stable, efficient light conversion is critical.
phosphor host materialsfluorescent lighting applicationsphotoluminescent ceramicsdisplay technologyoptical coatingsthermal-stable ceramics
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 92.12 | GPa | — | ||
Poisson's Ratio(ν) | 0.3100 | - | — | ||
Shear Modulus(G) | 42.13 | GPa | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 3.968 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 4.052 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 11.85 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.00505 | C/m² | — | ||
Seebeck Coefficient(S) | -109 | µV/K | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.00360 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -3.441 | eV/atom | — | ||
| ↳ | -3.307 | 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.