ScB2 — Properties & Data | MatWorld

ScB2

Name: ScB2
Brand: MatWorld

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

Units:

si imperial

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)2 entries	191.3	GPa	DFT
↳	194.5	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.1300	-	DFT · OptB88vdW
Shear Modulus(G)2 entries	194.3	GPa	DFT
↳	194.6	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	3.665	kg/m³	DFT · OptB88vdW

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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	0.000224	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000231	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-6.010	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-6.127	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.

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

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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-0.8843	eV/atom	DFT · OptB88vdW
↳	-1.060	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.

ScB2

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Regulatory Screening

Environmental