Sr2Si — Properties & Data | MatWorld

Sr2Si

ceramic

· Sr2Si

Sr₂Si is an intermetallic ceramic compound combining strontium and silicon, belonging to the family of binary silicates and intermetallic phases. This material is primarily of research and development interest rather than established in high-volume production, with potential applications in advanced ceramics where thermal stability and chemical compatibility with other phases are relevant. Its use would be considered in specialized contexts such as composite matrices, refractory systems, or electronic ceramics where the strontium-silicon chemistry provides specific phase stability or interfacial properties that conventional oxides or pure silicates cannot match.

experimental ceramic compositeshigh-temperature refractory applicationselectronic/functional ceramics researchceramic matrix compositesthermal barrier coatings (research phase)molten metal containment

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	34.68	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2400	-	DFT · OptB88vdW
Shear Modulus(G)	22.25	GPa	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Density(ρ)	3.597	kg/m³	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.3520	eV	DFT · OptB88vdW
↳	0.6130	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)2 entries	32.16	-	DFT · PBE
↳	21.70 range 15.44–27.96median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	18.17	-	DFT · OptB88vdW
↳	13.15	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Electron Effective Mass(m*e)	0.1767	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.2433	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000863	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00137	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-119.2	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	258.6	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	19.87	%	DFT · TBmBJ

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, or test environment.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.07000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.3879	eV/atom	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

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.

Sr2Si

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental