SrAl2O4

ceramic
· SrAl2O4

Strontium aluminate (SrAl₂O₄) is an inorganic ceramic compound belonging to the aluminate family, notable primarily for its photoluminescent properties when doped with rare-earth elements or transition metals. It is widely used in industrial applications requiring long-lasting phosphorescence or glow-in-the-dark functionality, and is also investigated for specialized applications in refractories and advanced ceramics where thermal stability and chemical inertness are critical. Engineers select this material when sustained luminescence without external power, thermal durability, or chemically inert surfaces are required, offering advantages over organic phosphors in high-temperature or chemically aggressive environments.

photoluminescent coatingsglow-in-the-dark markersemergency signage systemshigh-temperature refractoriesoptical ceramicsthermal barrier applications

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Density(ρ)
3.522
kg/m³—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
4.247
eV—
Dielectric Constant (Relative Permittivity)(εr)
10.24
-—
Magnetic Moment(μB)
0.000
µB—
Piezoelectric Modulus(eij)
0.00688
C/m²—
Seebeck Coefficient(S)
-95.52
µV/K—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
0.000
eV/atom—
Formation Energy(ΔHf)2 entries
-3.463
eV/atom—
↳
-3.337
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.