U3Si2

ceramic

· U3Si2

U3Si2 is an intermetallic ceramic compound combining uranium and silicon, belonging to the family of uranium silicides used primarily in nuclear fuel applications. It is a candidate advanced nuclear fuel material valued for its high uranium density and improved thermal conductivity compared to conventional uranium dioxide, making it of particular interest for next-generation reactor designs and high-performance fuel systems where enhanced heat removal and fuel efficiency are critical.

advanced nuclear fuelhigh-density reactor fuelaccident-tolerant fuel systemsfast breeder reactorsthermal conductivity enhancementnuclear research and development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.4417	lb/in³	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	—

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

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.1638	eV/atom	—
Formation Energy(ΔHf)2 entries	-0.3538	eV/atom	—
↳	-0.1084	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, or test environment.

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.

U3Si2

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental