Pa3Ta

ceramic

· JVASP-39339· Pa3Ta

Pa3Ta is an intermetallic ceramic compound composed of protactinium and tantalum, representing a refractory ceramic material from the actinide-transition metal family. This material is primarily of research and specialized defense/nuclear technology interest, as protactinium-containing compounds are studied for high-temperature structural applications and nuclear fuel matrix materials where extreme thermal stability and radiation resistance are critical. Pa3Ta exemplifies the broader class of high-density refractory ceramics used in environments where conventional oxide or carbide ceramics reach their operational limits.

nuclear fuel matriceshigh-temperature refractory applicationsradiation-resistant ceramicsdefense/classified researchactinide material systems

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.5444	lb/in³	DFT · OptB88vdW

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

Filter by

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000187	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000163	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	7.680	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	7.163	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)	0.2498	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	0.1816	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.

Pa3Ta — Properties & Data | MatWorld

Pa3Ta

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental