Y2Ni2O7 — Properties & Data | MatWorld

Y2Ni2O7

ceramic

· JVASP-49694· Y2Ni2O7

Y2Ni2O7 is a yttrium-nickel oxide ceramic compound belonging to the pyrochlore family of materials, characterized by a complex crystal structure that gives it unique thermal and electrical properties. This material is primarily of research interest for high-temperature applications, particularly as a thermal barrier coating component and in solid oxide fuel cell (SOFC) electrolytes, where its stability at elevated temperatures and ionic conductivity make it attractive for energy conversion devices. Compared to conventional thermal barrier materials, pyrochlore-based ceramics like Y2Ni2O7 offer improved thermal cycling resistance and lower thermal conductivity, though they remain largely in development stages for commercial deployment.

thermal barrier coatingssolid oxide fuel cellshigh-temperature ceramicsenergy conversion devicesresearch phase materialsadvanced aerospace coatings

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2020	lb/in³	DFT · OptB88vdW

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

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.4140	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	15.21	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	0.07000	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.08000	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00167	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000928	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-276.6	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	351.5	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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.252	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.

Y2Ni2O7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental