Si3W

metal

· JVASP-39086· Si3W

Si3W is a metal-based intermetallic compound combining silicon and tungsten. This material is primarily of research and developmental interest rather than a widely established commercial alloy, positioned within the family of refractory intermetallics that aim to combine the hardness and thermal stability of tungsten with silicon's lighter-element contributions. Industrial adoption remains limited, but such Si-W compounds are being explored for high-temperature structural applications and wear-resistant coatings where conventional superalloys reach their performance limits.

high-temperature coatingsrefractory intermetallicswear-resistant componentsresearch materialsthermal barrier applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2723	lb/in³	—

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

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	—
Magnetic Moment(μB)	0.000	µB	—
Seebeck Coefficient(S)	1.970	µV/K	—

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.5868	eV/atom	—
Formation Energy(ΔHf)	0.4183	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.

Si3W

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control