U3O7 — Properties & Data | MatWorld

U3O7

ceramic

· JVASP-100635· U3O7

U3O7 is a mixed-valence uranium oxide ceramic belonging to the family of nonstoichiometric uranium oxides, positioned between UO2 and U3O8 in the uranium–oxygen phase diagram. This material is primarily of research and specialized nuclear fuel interest, studied for its thermal, structural, and electrochemical properties in advanced fuel cycles and accident-tolerant fuel concepts; it represents a transitional composition useful for understanding oxygen-deficient uranium oxide behavior rather than a conventional engineering ceramic for structural applications.

nuclear fuel researchuranium oxide ceramicsnonstoichiometric oxide systemsaccident-tolerant fuel developmentthermal and oxidation studies

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.4209	lb/in³	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Magnetic Moment(μB)	4.000	µB	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.1407	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-3.357	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.

U3O7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental