ErNi5 — Properties & Data | MatWorld

ErNi5

Name: ErNi5
Brand: MatWorld

metal

· ErNi5

ErNi5 is an intermetallic compound in the rare-earth nickel family, combining erbium with nickel in a 1:5 stoichiometric ratio. This material is primarily of interest in hydrogen storage applications and magnetocaloric research, where its crystal structure and thermal properties enable hydrogen absorption at moderate pressures and temperatures. ErNi5 represents a class of rare-earth intermetallics valued for their reversible hydrogen uptake capacity, making them candidates for advanced energy storage systems, though they face practical challenges related to activation requirements and cycle stability compared to other metal hydride technologies.

hydrogen storage systemsmetal hydride researchmagnetocaloric applicationsthermal energy conversionrare-earth alloy developmentadvanced battery materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	157.7	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3100	-	DFT · OptB88vdW
Shear Modulus(G)	70.95	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	9.537	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	0.000	eV	DFT · TBmBJ
Magnetic Moment(μB)	0.5440	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000156	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000143	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-8.727	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-8.387	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°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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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.000200	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-0.3752	eV/atom	DFT · OptB88vdW
↳	-0.3026	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

Regulatory Screening

Environmental

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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.

ErNi5

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

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