YZr4O9

ceramic

· JVASP-50727· YZr4O9

YZr4O9 is a rare-earth zirconate ceramic compound containing yttrium and zirconium oxides, belonging to the family of pyrochlore-structured ceramics known for exceptional thermal stability and low thermal conductivity. This material is primarily investigated for high-temperature thermal barrier coating applications in aerospace and power generation, where its resistance to thermal cycling and chemical inertness at extreme temperatures make it a candidate alternative to conventional yttria-stabilized zirconia (YSZ) systems, particularly for next-generation turbine engines operating above 1200°C.

thermal barrier coatingsgas turbine enginesaerospace propulsionhigh-temperature insulationthermal cycling resistanceadvanced ceramics research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2065	lb/in³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	4.504	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)	24.19	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000161	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000189	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-29.82	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-33.37	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.000	%	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)	0.07340	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-3.610	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.

YZr4O9 — Properties & Data | MatWorld

YZr4O9

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental