Ta2I5 — Properties & Data | MatWorld

Ta2I5

ceramic

· JVASP-8754· Ta2I5

Ta2I5 is a tantalum iodide ceramic compound belonging to the halide ceramic family. This material is primarily of research and development interest rather than established industrial production, explored for its potential in electronic and photonic applications due to the unique properties imparted by tantalum's high atomic number and iodine's electrochemical characteristics. While not yet widely commercialized, tantalum halides are investigated for applications requiring high refractive index materials, radiation shielding components, and specialized optical coatings.

research ceramicsoptical materials developmentradiation shielding (experimental)electronic compound semiconductorshalide ceramic compositeshigh-density functional materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	19.94	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3000	-	DFT · OptB88vdW
Shear Modulus(G)	12.45	GPa	DFT · OptB88vdW

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Property	Value	Unit	Conditions	Source
Density(ρ)	6.306	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	0.4780	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)	10.53	-	DFT · TBmBJ
Magnetic Moment(μB)	0.6770	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.0000342	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000258	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-6.057	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	9.603	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	14.12	%	DFT · TBmBJ

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)	0.3858	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.01281	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.

Ta2I5

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental