USi

ceramic
· USi

USi is a uranium silicide ceramic compound that combines uranium metal with silicon to form a refractory ceramic material. It is primarily investigated for nuclear fuel applications and high-temperature structural uses where its density and stiffness characteristics are valuable. This material represents an advanced ceramic in the uranium compound family, with research and development focused on nuclear energy systems and extreme-environment engineering where conventional materials would fail.

nuclear fuel elementshigh-temperature reactor applicationsrefractory ceramicsadvanced nuclear materials researchdense ceramic composites

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65
PropertyValueUnitConditionsSource
Bulk Modulus(K)
104.7
GPa
Poisson's Ratio(ν)
0.3900
-
Shear Modulus(G)
39.77
GPa
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
10.90
kg/m³
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
0.000
eV
Magnetic Moment(μB)
8.997
µB
Seebeck Coefficient(S)
-2.090
µV/K
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
0.1263
eV/atom
Formation Energy(ΔHf)2 entries
-0.4337
eV/atom
-0.1432
eV/atom
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.
Verified Unverified Low confidence (<80%) Link to source

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.