UBC — Properties & Data | MatWorld

UBC

ceramic

· JVASP-15642· UBC

UBC is a dense ceramic material belonging to the uranium-based ceramic family, likely uranium boron carbide or a related uranium compound ceramic. This material is primarily of research and specialized defense/nuclear engineering interest, valued for its exceptional density and hardness characteristics that make it suitable for extreme environments where conventional ceramics reach their limits. Its use is restricted to niche applications requiring radiation shielding, high-temperature nuclear fuel forms, or armor systems where density and stiffness are critical; it is not commonly specified for general commercial engineering due to regulatory constraints, material availability, and the specialized expertise required for processing and deployment.

radiation shieldingnuclear fuel applicationsarmor and ballistic protectionhigh-temperature nuclear systemsresearch and developmentspecialized defense applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	219.8	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2200	-	DFT · OptB88vdW
Shear Modulus(G)	157.4	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	12.07	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)	1.172	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000234	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000234	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	3.227	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	3.057	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)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.5144	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.

UBC

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental