Tb4C5

ceramic

· JVASP-22138· Tb4C5

Tb₄C₅ is a terbium carbide ceramic compound belonging to the rare-earth carbide family, characterized by mixed-valence carbon bonding typical of lanthanide carbide systems. This material is primarily of research and development interest for high-temperature applications where thermal stability and chemical inertness are critical; rare-earth carbides like this are explored for refractory coatings, nuclear fuel matrix materials, and advanced ceramic composites, though industrial adoption remains limited compared to conventional carbides (WC, TaC). Engineers would consider Tb₄C₅ when conventional refractory carbides prove insufficient in extreme environments or when the unique chemical properties of terbium-bearing phases offer specific advantages in specialized composites or functional ceramics.

high-temperature refractory coatingsnuclear fuel compositesrare-earth carbide researchextreme-environment ceramicsadvanced ceramic matrices

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2848	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
Thermoelectric Power Factor(PF)2 entries	0.0000402	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000430	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-1.017	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-1.697	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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.4332	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.

Tb4C5 — Properties & Data | MatWorld

Tb4C5

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental