USiS — Properties & Data | MatWorld

USiS

ceramic

· JVASP-15993· USiS

USiS is a ceramic compound in the uranium–silicon system, likely an intermetallic or silicide phase used primarily in nuclear fuel and advanced materials research contexts. Its development reflects investigation into alternative nuclear fuel forms and high-temperature ceramic materials for specialized aerospace and nuclear engineering applications. This material represents an experimental composition rather than a commodity ceramic, selected for its potential combination of thermal stability and nuclear performance characteristics.

nuclear fuel developmenthigh-temperature ceramicsuranium-based materials researchaerospace structural applicationsrefractory systemsmaterials science research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	90.61	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3700	-	DFT · OptB88vdW
Shear Modulus(G)	28.71	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	8.114	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	0.000	eV	DFT · TBmBJ
Magnetic Moment(μB)	2.420	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000553	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000562	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	26.42	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	26.84	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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.5483	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.4566	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

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.

USiS

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental