NpSi2Pd2 — Properties & Data | MatWorld

NpSi2Pd2

ceramic

· JVASP-16121· NpSi2Pd2

NpSi₂Pd₂ is an intermetallic ceramic compound combining neptunium, silicon, and palladium—a rare material primarily of research and specialized nuclear applications interest. This compound belongs to the family of refractory intermetallics and is studied for potential use in high-temperature nuclear fuel systems, advanced reactor materials, and specialized metallurgical applications where neptunium-bearing phases require characterization. As an experimental material, NpSi₂Pd₂ is not commonly deployed in mainstream engineering but represents fundamental materials science work relevant to nuclear fuel chemistry and actinide material behavior under extreme conditions.

nuclear fuel systemsactinide researchhigh-temperature refractory materialsadvanced reactor developmentmaterials characterization (research)metallurgical phase studies

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	135.8	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3500	-	DFT · OptB88vdW
Shear Modulus(G)	46.99	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	9.719	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)	3.776	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000836	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000829	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-25.33	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-24.95	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)	-0.5944	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.

NpSi2Pd2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental