Y2Zr2O7 — Properties & Data | MatWorld

Y2Zr2O7

ceramic

· JVASP-57822· Y2Zr2O7

Y2Zr2O7 is a rare-earth zirconate ceramic compound belonging to the pyrochlore family of materials. This material is primarily studied and used in high-temperature thermal barrier coating (TBC) applications and advanced refractory systems, particularly as an alternative or complement to yttria-stabilized zirconia (YSZ) in demanding aerospace and power generation environments. Its notable advantages include superior phase stability at ultra-high temperatures, lower thermal conductivity than conventional YSZ, and improved resistance to sintering, making it valuable for engineers designing components exposed to extreme thermal cycling or corrosive high-temperature atmospheres.

thermal barrier coatingsgas turbine componentsaerospace engine applicationshigh-temperature refractoriesenvironmental barrier coatingsthermal protection systems

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	5.364	kg/m³	DFT · OptB88vdW

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

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	2.965	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	4.739	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	0.8800	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.200	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000876	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00204	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-183.6	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	378.5	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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.06260	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-3.750	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.

Y2Zr2O7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental