Lu2Ti2O7 — Properties & Data | MatWorld

Lu2Ti2O7

ceramic

· JVASP-19032· Lu2Ti2O7

Lu2Ti2O7 is a rare-earth titanate ceramic compound belonging to the pyrochlore family, composed of lutetium, titanium, and oxygen. This material is primarily of research and developmental interest for high-temperature applications, particularly in thermal barrier coatings and advanced aerospace environments where exceptional thermal stability and low thermal conductivity are required. Lu2Ti2O7 is notable among rare-earth titanate systems for its potential to serve as an alternative to traditional yttria-stabilized zirconia (YSZ) in next-generation thermal protection systems, especially where improved phase stability or reduced sintering rates under service conditions offer advantages.

thermal barrier coatingsaerospace engine componentshigh-temperature ceramics researchrare-earth oxide systemsadvanced refractory materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	7.380	kg/m³	DFT · OptB88vdW

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

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	2.521	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	6.082	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	1.350	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.090	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000860	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00243	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-255.4	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	362.3	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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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-3.602	eV/atom	DFT · OptB88vdW

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.

Lu2Ti2O7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental