Ho2Zr2O7 — Properties & Data | MatWorld

Ho2Zr2O7

ceramic

· JVASP-50358· Ho2Zr2O7

Ho₂Zr₂O₇ is a rare-earth zirconium oxide ceramic belonging to the pyrochlore family, a class of materials studied for their thermal and structural stability at extreme temperatures. This compound is primarily of research interest for advanced aerospace and nuclear applications, where its refractory properties and resistance to thermal cycling make it a candidate for thermal barrier coatings and high-temperature structural components; it represents an emerging alternative to conventional yttria-stabilized zirconia systems, offering potential advantages in specific high-heat environments.

thermal barrier coatingshigh-temperature ceramicsaerospace applicationsnuclear fuel claddingrefractory materialsresearch/experimental compounds

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	7.162	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	2.721	eV	DFT · OptB88vdW
↳	3.922	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	4.778	-	DFT · OptB88vdW
↳	2.283	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.7100	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.370	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000842	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00197	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-163.5	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	381.5	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.07000	%	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)	0.03380	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-3.741	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.

Ho2Zr2O7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental