Y2Zr2O7

Yttrium zirconate · Yttrium zirconium oxide, YZO

Yttrium zirconate is a ceramic material characterized by its high structural stability and resistance to extreme environments. It is primarily utilized as a thermal barrier coating due to its ability to withstand intense heat and prevent degradation of underlying metallic components.

Crystal structure of Y2Zr2O7 (cubic, Fd-3m (No. 227))
Ground-state structure · Materials Project
Overview

Key Properties

Cross-validated computational properties for Yttrium zirconate, aggregated across 3 databases.

Band Gap

2.82–4.45 eV
Range across DFT structures

Energy Above Hull

0.060 eV/atom
Best (lowest) across sources

Stability

Metastable
2 DFT sources

Structures

11
3 databases, 3 space groups
Crystallography

Reported Structures

Lowest-energy structures reported for Y2Zr2O7, ranked by energy above hull.

Space GroupCrystal SystemBand Gap (eV)E above hull (eV/atom)E/atom (eV)Density (g/cm³)
Fd-3m (No. 227)cubic2.820.0596-9.7285.26
P21 (No. 4)monoclinic4.070.0644-9.7235.23
C2/m (No. 12)monoclinic4.450.0752-9.7134.22
Fd-3m (No. 227)
C2/m (No. 12)Monoclinic4.22
C2/m (No. 12)Monoclinic4.52
C2/m (No. 12)Monoclinic4.34
C2/m (No. 12)
Fd-3m (No. 227)Cubic5.26
Fd-3m (No. 227)Cubic5.67
Fd-3m (No. 227)Cubic5.43
Synthesis

Synthesis Routes

Literature-extracted synthesis procedures targeting Y2Zr2O7.

Sol-Gel
Procedure available · ceder_solid_state
Sol-Gel
Procedure available · ceder_solid_state
Sol-Gel
Procedure available · ceder_solid_state
Sol-Gel
Procedure available · ceder_solid_state
Uses

Applications

Where Yttrium zirconate is used.

Thermal barrier coatingsGas turbine engine componentsNuclear waste immobilizationSolid oxide fuel cells
Reference

Frequently Asked Questions

Common questions about Yttrium zirconate, answered from cross-validated data.

What is Y2Zr2O7?

Yttrium zirconate is a ceramic material characterized by its high structural stability and resistance to extreme environments. It is primarily utilized as a thermal barrier coating due to its ability to withstand intense heat and prevent degradation of underlying metallic components.

More questions
What is Y2Zr2O7 used for?
Yttrium zirconate (Y2Zr2O7) is used in thermal barrier coatings, gas turbine engine components, nuclear waste immobilization, and solid oxide fuel cells.
What is the band gap of Y2Zr2O7?
Yttrium zirconate (Y2Zr2O7) has a DFT-computed band gap of 2.82–4.45 eV across 11 reported structures.
Is Y2Zr2O7 a metal, semiconductor, or insulator?
With a wide band gap up to 4.45 eV it is an insulator / wide-band-gap material.
Is Y2Zr2O7 thermodynamically stable?
Yttrium zirconate (Y2Zr2O7) has a lowest energy above hull of 0.060 eV/atom (metastable).
What is the crystal structure of Y2Zr2O7?
The lowest-energy reported polymorph of Yttrium zirconate (Y2Zr2O7) is cubic symmetry, space group Fd-3m (No. 227).
What is the density of Y2Zr2O7?
The computed density of the ground-state structure of Yttrium zirconate (Y2Zr2O7) is 5.26 g/cm³.
How many polymorphs of Y2Zr2O7 are known?
11 structures of Y2Zr2O7 are reported across 3 databases, spanning 3 distinct space groups.
How is Y2Zr2O7 synthesized?
Literature-reported routes for Y2Zr2O7 include sol-gel (4 procedures documented).
What elements does Y2Zr2O7 contain?
Yttrium zirconate (Y2Zr2O7) contains O, Y, and Zr (3 elements).
Where does the data for Y2Zr2O7 come from?
Y2Zr2O7 data is cross-referenced from materials_project, jarvis, mpaloe.
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Related Compounds

Other Fluorite Oxide-Ion Conductors in the database.

Data sources & attribution
  • materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
  • jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
  • mpaloe — Data from mpaloe.

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