Si2W3

metal

· JVASP-150801· Si2W3

Si₂W₃ is a silicide intermetallic compound combining silicon and tungsten, belonging to the family of refractory metal silicides. This material exhibits high stiffness and density, making it of interest in high-temperature and wear-resistant applications where conventional alloys reach their limits. Si₂W₃ remains largely a research-phase material; its practical industrial adoption is limited, but the silicide family is valued in aerospace, automotive, and materials science communities for applications requiring thermal stability and hardness.

high-temperature structural componentswear-resistant coatingsrefractory applicationsaerospace researchadvanced composite reinforcementmaterials research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	35,196.3	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3700	-	DFT · OptB88vdW
Shear Modulus(G)	12,200.6	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.4977	lb/in³	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.8334	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	0.4355	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

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.

Si2W3 — Properties & Data | MatWorld

Si2W3

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control