Ba3Hf2O7 — Properties & Data | MatWorld

Ba3Hf2O7

Name: Ba3Hf2O7
Brand: MatWorld

ceramic

· JVASP-50923· Ba3Hf2O7

Ba3Hf2O7 is a barium hafnium oxide ceramic compound belonging to the pyrochlore family of materials, characterized by a complex crystal structure suitable for high-temperature applications. This material is primarily investigated in research contexts for thermal barrier coatings and solid oxide fuel cell (SOFC) electrolytes, where its thermal stability and ionic conductivity properties are leveraged; it offers potential advantages over conventional zirconia-based systems in extreme temperature environments, though industrial adoption remains limited compared to established alternatives.

thermal barrier coatingssolid oxide fuel cellshigh-temperature ceramicsaerospace thermal protectionresearch compounds

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	7.613	kg/m³	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	3.685	eV	DFT · OptB88vdW
↳	4.981	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	4.508	-	DFT · OptB88vdW
↳	3.820	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00156	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000979	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-247.3	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	429.4	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)	0.00310	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-3.513	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.

Ba3Hf2O7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental