Strontium oxide (SrO) is an alkaline earth ceramic compound commonly used as a raw material and additive in high-temperature and electrochemical applications. Its primary industrial use is in cathode materials for solid oxide fuel cells (SOFCs), where it enhances ionic conductivity and thermal stability, and as a component in refractories, glass formulations, and specialized ceramics that must withstand extreme temperatures. Engineers select SrO-based materials when high-temperature chemical stability, ionic conductivity, or low thermal expansion are critical, making it particularly valuable in energy conversion devices and harsh thermal environments where conventional ceramics fall short.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)3 entries | 87.43 | GPa | — | ||
| ↳ | 87.43 | GPa | — | ||
| ↳ | 93.60 | GPa | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 0.00685 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | Pa | — | ||
Poisson's Ratio(ν)2 entries | 0.2361 | - | — | ||
| ↳ | 0.2400 | - | — | ||
Shear Modulus(G)3 entries | 56.00 | GPa | — | ||
| ↳ | 56.00 | GPa | — | ||
| ↳ | 60.06 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 4.968 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)3 entries | 5.770 | eV | — | ||
| ↳ | 5.700 | eV | — | ||
| ↳ | 3.405 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 17.53 | - | — | ||
| ↳ | 37.62 range 4.525–70.71median of 2 measurements | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -236.8 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -3.068 | eV/atom | — | ||
| ↳ | -3.026 | eV/atom | — |