Sr4 Ca4 Si4

semiconductor
· Sr4 Ca4 Si4

Sr₄Ca₄Si₄ is an experimental intermetallic compound belonging to the alkaline-earth silicide family, combining strontium, calcium, and silicon in a defined stoichiometric ratio. This material exists primarily in research contexts as a candidate semiconductor for solid-state applications; its mixed alkaline-earth composition is of interest for tuning electronic band structure and thermal properties relative to single-element silicides. While not yet established in mainstream engineering applications, compounds in this family are being investigated for potential use in thermoelectric devices, optoelectronics, and high-temperature structural applications where the combination of ionic and covalent bonding offers a balance between mechanical stiffness and semiconducting behavior.

thermoelectric devices (research phase)semiconductor researchhigh-temperature structural materials (exploratory)optoelectronic materials developmentintermetallic compound engineeringband-gap engineering applications

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)
37.32
GPa—
Shear Modulus(G)
24.51
GPa—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
0.04610
eV—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Formation Energy(ΔHf)
-0.5470
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.