Si3W — Properties & Data | MatWorld

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)	7.536	kg/m³	DFT · OptB88vdW

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

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000377	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000433	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	1.970	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	3.007	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.5868	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	0.4183	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.

Si3W

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control