TbB2
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
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 161.3 | GPa | — | ||
Poisson's Ratio(ν) | 0.1700 | - | — | ||
Shear Modulus(G) | 139.5 | GPa | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 8.132 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | -2.447 | µV/K | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -0.3545 | eV/atom | — | ||
| ↳ | -0.5735 | eV/atom | — |
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.
Verified Unverified Low confidence (<80%) Link to source
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.