TbB2 — Properties & Data | MatWorld

TbB2

Name: TbB2
Brand: MatWorld

ceramic

· TbB2

Terbium diboride (TbB2) is a ceramic compound belonging to the hexagonal boride family, characterized by high hardness and refractory properties typical of rare-earth borides. While primarily a research material rather than a commodity engineering ceramic, TbB2 is investigated for extreme-temperature applications and specialized cutting/wear-resistant coatings where rare-earth borides offer potential advantages over conventional borides in specific thermal or chemical environments.

High-temperature structural applicationsRefractory coatingsCutting tool materials (research)Wear-resistant surfacesNuclear/advanced reactor researchMaterials research & development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	23,388.8	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.1700	-	DFT · OptB88vdW
Shear Modulus(G)	20,228.4	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2938	lb/in³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	0.000	eV	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.0000456	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000450	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-2.447	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-2.323	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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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-0.5735	eV/atom	DFT · OptB88vdW
↳	-0.3545	eV/atom	Measured

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

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.

TbB2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental