Sm2Zr2O7 — Properties & Data | MatWorld

Sm2Zr2O7

ceramic

· JVASP-21220· Sm2Zr2O7

Sm₂Zr₂O₇ is a rare-earth zirconate ceramic compound belonging to the pyrochlore oxide family, composed of samarium and zirconium oxides. This material is primarily of research and developmental interest for thermal barrier coating (TBC) applications in advanced aerospace and power generation, where it offers potential advantages over conventional yttria-stabilized zirconia (YSZ) due to its lower thermal conductivity and improved phase stability at ultra-high temperatures. The samarium-zirconate system represents an emerging alternative in the thermal protection material space, particularly for next-generation gas turbines and hypersonic vehicle applications where incremental improvements in thermal performance and durability translate to significant engineering gains.

thermal barrier coatingsgas turbine componentsaerospace propulsionhigh-temperature protectionthermal insulation systemsadvanced ceramics research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2356	lb/in³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	3.302	eV	DFT · OptB88vdW
↳	4.443	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)	1.617	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.8500	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.500	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000863	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00162	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-178.5	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	380.1	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)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-3.726	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.

Sm2Zr2O7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental