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 | DFT | ||
| ↳ | 93.60 | GPa | DFT · OptB88vdW | ||
| ↳ | 87.43 | GPa | DFT · PBE | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | DFT · PBE | ||
Elastic Anisotropy(AU) | 0.00685 | - | DFT · PBE | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | Pa | DFT · PBE | ||
Poisson's Ratio(ν)2 entries | 0.2400 | - | DFT · OptB88vdW | ||
| ↳ | 0.2361 | - | DFT · PBE | ||
Shear Modulus(G)3 entries | 56.00 | GPa | DFT | ||
| ↳ | 60.06 | GPa | DFT · OptB88vdW | ||
| ↳ | 56.00 | GPa | DFT · PBE |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 4.968 | kg/m³ | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)4 entries | 5.700 | eV | Measured | ||
| ↳ | 5.770 | eV | Measured | ||
| ↳ | 3.405 | eV | DFT · OptB88vdW | ||
| ↳ | 4.958 | eV | DFT · TBmBJ | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 17.53 | - | DFT · OptB88vdW | ||
| ↳ | 37.62 range 4.525–70.71median of 2 measurements | - | DFT · PBEsol | ||
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries | 3.830 | - | DFT · OptB88vdW | ||
| ↳ | 3.125 | - | DFT · TBmBJ | ||
Electron Effective Mass(m*e) | 0.6300 | me | DFT · OptB88vdW · 27°C | ||
Hole Effective Mass(m*h) | 1.420 | me | DFT · OptB88vdW · 27°C | ||
Magnetic Moment(μB) | 0.000 | µB | DFT · OptB88vdW | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | DFT · OptB88vdW | ||
Thermoelectric Power Factor(PF)2 entries | 0.00270 | W/(m·K²) | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 0.00371 | W/(m·K²) | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Seebeck Coefficient(S)2 entries | -236.8 | μV/K | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 452.6 | μV/K | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Spectroscopic Limited Maximum Efficiency (SLME)(SLME) | 0.000 | % | DFT · TBmBJ |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | DFT · OptB88vdW | ||
Formation Energy(ΔHf)2 entries | -3.026 | eV/atom | DFT · OptB88vdW | ||
| ↳ | -3.068 | eV/atom | Measured |
Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data