NpSi2Au2

metal

· JVASP-17620· NpSi2Au2

NpSi2Au2 is an intermetallic compound combining neptunium, silicon, and gold in a defined stoichiometric ratio, representing a rare-earth or actinide-based metallic system. This is fundamentally a research material rather than a commercial alloy; such ternary intermetallics are typically investigated for their unique electronic, magnetic, or structural properties in specialized metallurgical studies. The material would be of interest to nuclear materials scientists, condensed matter physicists, and materials researchers exploring advanced intermetallic phases, though practical industrial applications remain limited to laboratory and fundamental research contexts.

nuclear materials researchactinide intermetallicscondensed matter physicshigh-performance alloy developmentexperimental metallurgymaterials characterization studies

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	16,957.8	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3800	-	DFT · OptB88vdW
Shear Modulus(G)	4,454.1	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.4380	lb/in³	DFT · OptB88vdW

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

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Magnetic Moment(μB)	3.992	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000607	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000578	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-26.57	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-25.95	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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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.2493	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

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.

NpSi2Au2 — Properties & Data | MatWorld

NpSi2Au2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control