Ti2Al2O7 — Properties & Data | MatWorld

Ti2Al2O7

ceramic

· JVASP-49599· Ti2Al2O7

Ti2Al2O7 is a titanium aluminate ceramic compound that belongs to the family of mixed-oxide ceramics. This material is primarily studied as a thermal barrier coating (TBC) candidate and refractory component for high-temperature applications, though it remains largely in research and development phase rather than widespread industrial deployment. Engineers consider this composition for extreme thermal environments where its multiphase ceramic structure offers potential advantages in thermal stability and oxidation resistance compared to single-phase alternatives.

thermal barrier coatingshigh-temperature structural ceramicsrefractory materialsjet engine componentsresearch and developmentoxidation-resistant coatings

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1430	lb/in³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.5680	eV	DFT · OptB88vdW
↳	1.444	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	6.916	-	DFT · OptB88vdW
↳	5.593	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.4300	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.8000	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000696	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00304	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-118.7	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	357.6	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	33.09	%	DFT · TBmBJ

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)	0.5237	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.762	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.

Ti2Al2O7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental