TbNaS2 — Properties & Data | MatWorld

TbNaS2

ceramic

· JVASP-37071· TbNaS2

TbNaS₂ is a rare-earth ceramic compound combining terbium, sodium, and sulfur, belonging to the thiometallic ceramic family. This material exists primarily in research and exploratory contexts rather than established industrial production; compounds in this class are investigated for potential applications in solid-state ionics, optical materials, and specialized ceramic coatings where rare-earth elements provide unique electronic or luminescent properties. Engineers would consider this material when designing systems requiring thermal stability, specific dielectric behavior, or rare-earth-enabled functionality that conventional ceramics cannot deliver, though availability and processing standardization remain significant practical limitations.

experimental ceramic researchsolid-state ionic conductorsoptical and photonic materialsrare-earth ceramic coatingshigh-temperature specialty applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	7,353.4	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2300	-	DFT · OptB88vdW
Shear Modulus(G)	4,919.7	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1624	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	2.292	eV	DFT · OptB88vdW
↳	3.249	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	16.26	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	5.915	-	DFT · OptB88vdW
↳	4.676	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.6167	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.320	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00290	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00204	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-253.3	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	325.8	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	2.600	%	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.

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)	-2.005	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.

TbNaS2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental