SrSiO3
strontium metasilicate · strontium silicate
Strontium metasilicate is a stable, insulating inorganic compound widely utilized in ceramic and materials science applications.
About strontium metasilicate
Strontium metasilicate is a stable inorganic compound that exists as a wide-gap insulator. Its presence on the convex hull indicates high thermodynamic stability, making it a reliable candidate for various high-temperature and structural applications where chemical inertness is required.
With numerous reported structures, this material demonstrates significant structural flexibility. It serves as a foundational component in ceramic engineering and specialized glass formulations, where its insulating properties and stable lattice structure provide essential performance characteristics.
Key Properties
Cross-validated computational properties for strontium metasilicate, aggregated across 3 databases.
Band GapEnergy needed to move an electron from the valence band to the conduction band. Lower or zero values tend to behave more metallic; larger gaps are more insulating or semiconducting.
Energy Above HullThermodynamic distance from the most stable set of competing phases. 0 eV/atom is on the convex hull; small positive values may still be experimentally accessible.
StabilityA plain-language summary of the best reported energy-above-hull result. It reflects whether the lowest-energy structure is on, near, or far from the stability hull.
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of SrSiO3. Tight agreement means computed properties can be trusted without re-running calculations.
Agreement ScoreA normalized confidence score summarizing how closely independent DFT databases agree. Higher scores mean tighter cross-source agreement.
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
Reported Structures
Lowest-energy structures reported for SrSiO3, ranked by energy above hull.
| Space GroupSymmetry classification of the crystal arrangement. The number is the international space-group index. | Crystal SystemBroad lattice family, such as cubic, tetragonal, monoclinic, or triclinic, derived from unit-cell symmetry. | Band Gap (eV)Electronic gap calculated for this specific reported structure, measured in electronvolts. | E above hull (eV/atom)Thermodynamic distance from the convex hull for this structure, normalized per atom. Lower is generally more stable. | E/atom (eV)Computed total energy normalized per atom. Use energy above hull, not this value alone, when comparing stability. | Density (g/cm³)Mass per relaxed crystal volume, reported in grams per cubic centimeter. |
|---|---|---|---|---|---|
| — | — | 4.95 | 0.0000 | -3.277 | — |
| C2/c (No. 15) | monoclinic | 4.84 | 0.0000 | -3.200 | — |
| C2/c (No. 15) | monoclinic | 4.63 | 0.0000 | -7.834 | 3.64 |
| — | — | 4.95 | 0.0002 | -3.276 | — |
| P21/c (No. 14) | monoclinic | 4.99 | 0.0154 | -3.185 | — |
| P-1 (No. 2) | triclinic | 4.38 | 0.0170 | -7.817 | 3.83 |
| — | — | 4.68 | 0.0214 | -3.255 | — |
| P21/c (No. 14) | monoclinic | 4.60 | 0.0360 | -7.798 | 3.85 |
| — | — | 4.93 | 0.0371 | -3.240 | — |
| — | — | 5.09 | 0.0469 | -3.230 | — |
| Pm-3m (No. 221) | cubic | 3.04 | 0.2458 | -2.954 | — |
| — | — | 2.15 | 0.2872 | -2.989 | — |
Synthesis Routes
Literature-extracted synthesis procedures targeting SrSiO3.
Applications
Where strontium metasilicate is used.
Frequently Asked Questions
Common questions about strontium metasilicate, answered from cross-validated data.
What is SrSiO3?
Strontium metasilicate is a stable, insulating inorganic compound widely utilized in ceramic and materials science applications.
What is SrSiO3 used for?
What is the band gap of SrSiO3?
Is SrSiO3 a metal, semiconductor, or insulator?
Is SrSiO3 thermodynamically stable?
What is the crystal structure of SrSiO3?
How many polymorphs of SrSiO3 are known?
How is SrSiO3 synthesized?
What elements does SrSiO3 contain?
Where does the data for SrSiO3 come from?
How It Compares
As a thermodynamically stable silicate, SrSiO3 represents a robust member of the alkaline earth silicate family. It is valued for its structural consistency and insulating nature, which allow it to function effectively in demanding environments where other, less stable silicate phases might fail.
Data sources & attribution
- oqmd — Data from the OQMD (oqmd.org). Cite: Saal et al., JOM 65, 1501 (2013); Kirklin et al., npj Comp. Mater. 1, 15010 (2015). (CC-BY-4.0)
- jarvis — Data from JARVIS (jarvis.nist.gov), NIST. Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020). (LicenseRef-US-Gov-PD)
- materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (CC-BY-4.0)
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