TbB4

ceramic

· JVASP-13756· TbB4

TbB4 is a terbium boride ceramic compound belonging to the rare-earth boride family, characterized by extremely high hardness and thermal stability. This material is primarily explored in advanced research contexts for ultra-hard coating and wear-resistant applications, particularly where conventional ceramics reach performance limits; it represents part of the rare-earth boride materials platform that offers potential advantages in high-temperature and abrasive environments compared to more conventional boride and carbide alternatives.

cutting tool coatingswear-resistant surfaceshigh-temperature ceramicsresearch and developmentspecialty refractory applicationshard coating systems

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1599	lb/in³	DFT · OptB88vdW

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

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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	0.000123	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000103	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-10.30	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-9.550	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)	0.9779	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	0.5035	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.

TbB4 — Properties & Data | MatWorld

TbB4

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental