Zr0.5Hf0.5NiSn

metal

· Zr0.5Hf0.5NiSn

Zr0.5Hf0.5NiSn is a half-Heusler intermetallic compound combining zirconium, hafnium, nickel, and tin in equimolar proportions. This material is primarily of research interest for thermoelectric applications, where it is studied as a potential candidate for solid-state heat-to-electricity conversion and waste heat recovery systems. The compound belongs to the half-Heusler family, which offers tunable electronic and phononic properties; this particular composition leverages the high atomic mass and similar chemistry of Zr and Hf to scatter phonons and reduce thermal conductivity while maintaining reasonable electrical conductivity—a key trade-off for thermoelectric performance.

thermoelectric deviceswaste heat recoverysolid-state power generationhigh-temperature energy conversionresearch-phase materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Thermal Conductivity(k)2 entries	4.087	W/(m·K)	—
↳	4.087	W/(m·K)	27°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
Electrical Conductivity(σ)	102.6	S/cm	27°C
Electrical Resistivity(ρe)	0.0000975	Ω·m	27°C
Thermoelectric Power Factor(PF)	0.000328	W/(m·K²)	27°C
Seebeck Coefficient(S)	-178.8	μV/K	27°C
Thermoelectric Figure of Merit(zT)	0.02406	-	27°C

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

Regulatory Screening

Environmental

Export Control

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.

Zr0.5Hf0.5NiSn

Thermal Properties

Electrical Properties

Regulatory Screening

Environmental

Export Control