WOF4

Name: WOF4
Brand: MatWorld

ceramic

· WOF4

WOF₄ (tungsten oxytetrafluoride) is an inorganic ceramic compound combining tungsten, oxygen, and fluorine—a relatively uncommon composition that positions it primarily in the research and specialized materials domain. While industrial applications remain limited due to its niche chemistry, tungsten fluoride ceramics are investigated for high-temperature stability, chemical inertness, and potential use in extreme environments where conventional oxides or fluorides prove inadequate. Engineers would consider this material for advanced applications requiring fluorine-bearing ceramics with tungsten's refractory properties, though practical deployment typically remains experimental or restricted to R&D contexts rather than mainstream engineering practice.

high-temperature ceramics researchextreme environment materialsfluoride-based refractorieschemical inertness applicationsspecialized coatings (exploratory)nuclear/aerospace research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	4,252.5	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2100	-	DFT · OptB88vdW
Shear Modulus(G)	3,108.2	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2021	lb/in³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	4.343	eV	DFT · OptB88vdW
↳	5.471	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	6.000	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	3.527	-	DFT · OptB88vdW
↳	2.850	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	0.2522	C/m²	DFT · OptB88vdW
↳	2.896	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Thermoelectric Power Factor(PF)2 entries	0.000453	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00107	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-471.5	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	500.8	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.000	%	DFT · TBmBJ

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.

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

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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-2.749	eV/atom	DFT · OptB88vdW
↳	-2.430	eV/atom	Measured

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.

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

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.

WOF4 — Properties & Data | MatWorld

WOF4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental