LuB2

Name: LuB2
Brand: MatWorld

ceramic

· LuB2

Lutetium diboride (LuB₂) is a ceramic compound belonging to the hexaboride family of refractory materials, characterized by extremely high hardness and thermal stability. It is primarily investigated in research and aerospace contexts for extreme-environment applications where conventional ceramics fail, including high-temperature structural components, cutting tools, and thermal protection systems. LuB₂ offers advantages over more common borides through its combination of chemical inertness, resistance to oxidation at elevated temperatures, and mechanical robustness, though its rarity, cost, and processing complexity limit widespread commercial adoption compared to established alternatives like tungsten carbide or zirconia.

refractory ceramicsaerospace thermal protectionhigh-temperature cutting toolsresearch compoundsextreme environment applicationswear-resistant coatings

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	26,559.3	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.1400	-	DFT · OptB88vdW
Shear Modulus(G)	25,139.4	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.3498	lb/in³	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	0.000309	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000292	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-7.023	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-6.860	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	-0.7319	eV/atom	DFT · OptB88vdW
↳	-0.3089	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.

LuB2 — Properties & Data | MatWorld

LuB2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental