U2N3

ceramic

· JVASP-19924· U2N3

U2N3 is a uranium nitride ceramic compound belonging to the family of refractory nitride materials, characterized by high density and stiffness. This material is primarily of research and specialized nuclear fuel interest, investigated for potential use in advanced nuclear reactor systems where extreme thermal stability and high heavy-metal density are critical. U2N3 represents an alternative to conventional uranium oxide fuels in developmental fast-breeder and high-temperature reactor concepts, valued for its thermal conductivity and density advantages over UO2, though commercial deployment remains limited.

advanced nuclear fuel formsresearch reactor developmenthigh-temperature ceramicsrefractory compoundsnuclear materials R&D

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	29,948.8	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3200	-	DFT · OptB88vdW
Shear Modulus(G)	13,005.5	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.4540	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.03100	eV	DFT · OptB88vdW
↳	0.000	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)	120.2	-	DFT · OptB88vdW
Magnetic Moment(μB)	2.997	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000228	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000203	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-29.05	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-25.11	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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.589	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.

U2N3 — Properties & Data | MatWorld

U2N3

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental