ScB2
ceramic· ScB2
Scandium diboride (ScB2) is a refractory ceramic compound belonging to the hexaboride family, characterized by exceptional hardness and thermal stability at elevated temperatures. While primarily of research and development interest rather than widespread commercial use, ScB2 is investigated for ultra-high-temperature structural applications where conventional ceramics and metals reach their performance limits. Its potential lies in aerospace thermal protection, wear-resistant coatings, and cutting tools, where the combination of high stiffness and resistance to thermal degradation offers advantages over established alternatives like alumina or silicon carbide.
ultra-high-temperature ceramicsaerospace thermal protectionwear-resistant coatingsrefractory applicationscutting tool materialsresearch/experimental ceramic
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 191.3 | GPa | — | ||
| ↳ | 194.5 | GPa | — | ||
Poisson's Ratio(ν) | 0.1300 | - | — | ||
Shear Modulus(G)2 entries | 194.3 | GPa | — | ||
| ↳ | 194.6 | GPa | — |
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
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 3.665 | 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) | -6.010 | 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 | -1.060 | eV/atom | — | ||
| ↳ | -0.8843 | 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.