ErTa3 — Properties & Data | MatWorld

ErTa3

ceramic

· JVASP-37898· ErTa3

ErTa3 is an intermetallic ceramic compound combining erbium and tantalum, belonging to the rare-earth transition-metal ceramic family. This material is primarily investigated in advanced high-temperature and neutron-absorbing applications, where its combination of refractory properties and nuclear cross-section make it relevant to nuclear engineering, aerospace thermal protection, and control rod systems. ErTa3 represents a specialized research compound rather than a widely commercialized grade, offering potential advantages in extreme environments where conventional ceramics or metallic alloys reach thermal or neutronic limits.

nuclear control rodshigh-temperature refractory applicationsaerospace thermal barriersneutron absorbersadvanced ceramics research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.5358	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	0.000314	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000316	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-6.020	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-6.040	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)	0.3314	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	0.3305	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.

ErTa3

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental