Sr3TaGa3Si2O14 — Properties & Data | MatWorld

Sr3TaGa3Si2O14

ceramic

· JVASP-49240· Sr3TaGa3Si2O14

Sr₃TaGa₃Si₂O₁₄ is a complex oxide ceramic compound belonging to the langasite family of materials, characterized by a crystalline structure containing strontium, tantalum, gallium, and silicon. This material is primarily investigated in research and specialized applications for its piezoelectric and acoustic properties, making it of interest for high-temperature sensor and signal-processing applications where conventional piezoceramics become unstable. Its potential extends to precision frequency control and resonator applications in demanding aerospace and geothermal environments where superior thermal stability compared to standard piezoelectric ceramics is advantageous.

high-temperature sensorsacoustic wave devicespiezoelectric resonatorsaerospace instrumentationgeothermal well loggingresearch compounds

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	4.999	kg/m³	DFT · OptB88vdW

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

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	4.034	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	19.98	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	3.567	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.06815	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00115	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000424	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-156.6	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	419.7	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

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)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.857	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.

Sr3TaGa3Si2O14

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental