Er2Zr2O7

ceramic

· JVASP-50506· Er2Zr2O7

Er₂Zr₂O₇ is a rare-earth zirconate ceramic compound belonging to the pyrochlore oxide family, composed of erbium and zirconium oxides. This material is primarily investigated as a thermal barrier coating (TBC) candidate and advanced refractory for high-temperature applications, particularly in aerospace and power generation contexts where superior thermal insulation and oxidation resistance are critical. Its appeal over conventional zirconia-based coatings lies in its potential for improved thermal stability at ultra-high temperatures and reduced sintering rates, making it relevant for next-generation gas turbine engines and hypersonic vehicle components.

thermal barrier coatingsgas turbine engineshypersonic vehicle structureshigh-temperature refractoriesaerospace propulsion systemsadvanced ceramics research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	17,471.2	ksi	DFT · OptB88vdW
Shear Modulus(G)	5,402.7	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2629	lb/in³	DFT · OptB88vdW

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

Filter by

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	2.636	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	4.774	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	0.7000	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.150	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000832	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00229	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-160.1	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	383	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)	0.04980	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-3.739	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.

Er2Zr2O7 — Properties & Data | MatWorld

Er2Zr2O7

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental