PaO2 — Properties & Data | MatWorld

PaO2

ceramic

· JVASP-42084· PaO2

Protactinium oxide (PaO₂) is a ceramic compound composed of the actinide metal protactinium and oxygen, belonging to the family of heavy metal oxides with potential nuclear and refractory applications. Due to protactinium's extreme scarcity, high cost, and radioactivity, PaO₂ remains primarily a research and development material studied for fundamental nuclear fuel properties, advanced ceramics, and specialized high-temperature applications rather than commercial production. Its dense crystalline structure and refractory characteristics make it of academic interest for nuclear materials science, though practical engineering use is severely limited by material availability, regulatory constraints, and cost factors that restrict it to laboratory and specialized institutional contexts.

advanced nuclear fuel researchrefractory ceramics developmentactinide material studieshigh-temperature ceramic testingnuclear materials characterizationspecialized research applications only

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	157.1	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3600	-	DFT · OptB88vdW
Shear Modulus(G)	65.76	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	8.900	kg/m³	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)	1.998	µB	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.2612	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-3.619	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.

PaO2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental