Si4 Y2

semiconductor

· Si4 Y2

Si₄Y₂ is a ceramic compound belonging to the rare-earth silicide family, combining silicon with yttrium to form a high-performance engineering ceramic. This material is primarily investigated in advanced materials research for high-temperature structural applications where thermal stability and mechanical strength at elevated temperatures are critical; it is used or proposed for aerospace components, thermal barrier coatings, and next-generation engine applications where conventional ceramics reach their performance limits.

high-temperature structural ceramicsaerospace engine componentsthermal barrier coatingsrefractory materialsresearch/advanced materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	12,233.1	ksi	—
Shear Modulus(G)	4,526.2	ksi	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00190	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.5100	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.

Si4 Y2

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control