HfNiSn — Properties & Data | MatWorld

HfNiSn

Name: HfNiSn
Brand: MatWorld

metal

· HfNiSn

HfNiSn is a ternary intermetallic compound combining hafnium, nickel, and tin, representing a research-phase material within the broader family of refractory metal intermetallics. This material is of primary interest in thermoelectric and high-temperature structural applications where its high density and thermally stable crystal structure may offer advantages, though it remains largely experimental with limited industrial deployment compared to established nickel-based superalloys or tungsten composites.

thermoelectric energy conversion (research)high-temperature structural compoundsrefractory intermetallics developmentmaterials research and characterizationadvanced aerospace (exploratory)

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	11.01	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	0.3750	eV	DFT · OptB88vdW
↳	0.3880	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)2 entries	26.50	-	DFT · OptB88vdW
↳	23.45 range 20.95–25.95median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)	21.11	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.06000	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.07000	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	0.09779	C/m²	DFT · OptB88vdW
↳	0.08578	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Thermoelectric Power Factor(PF)2 entries	0.00300	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00312	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-248.3	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	307.3	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	9.410	%	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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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.2842	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-0.3589	eV/atom	DFT · OptB88vdW
↳	-0.6488	eV/atom	Measured

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.

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

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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.

HfNiSn

Physical Properties

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