Si2 Ta4

semiconductor
· Si2 Ta4

Si₂Ta₄ is a tantalum silicide compound, a refractory ceramic material belonging to the family of transition metal silicides used in high-temperature and harsh-environment applications. This material represents an experimental or specialized composition within the silicide family, combining tantalum's exceptional refractory properties with silicon to create a phase with potential for extreme temperature stability and oxidation resistance. Tantalum silicides are primarily investigated for aerospace thermal protection systems, high-temperature structural components, and electronic device applications where conventional metals or oxides fail; they are notably more thermally stable than many competing refractory compounds, though processing and cost remain significant engineering trade-offs compared to established alternatives like alumina or tungsten alloys.

high-temperature structural componentsaerospace thermal protectionrefractory coatingssemiconductor device fabricationoxidation-resistant compositesresearch and development materials

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)
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ksi——
Shear Modulus(G)
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ksi——
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
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eV——
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Formation Energy(ΔHf)
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eV/atom——
Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

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.