NpSi2Os2

ceramic

· JVASP-16119· NpSi2Os2

NpSi2Os2 is an experimental neptunium silicate ceramic compound containing actinide and silicate phases. This material belongs to the family of actinide ceramics studied primarily in nuclear materials research and waste containment contexts. While not widely deployed in commercial applications, neptunium silicates are investigated for their potential in nuclear fuel forms, immobilization of radioactive waste streams, and fundamental understanding of actinide-ceramic interactions under extreme conditions.

nuclear waste immobilizationactinide ceramic researchadvanced nuclear fuel formsradiation damage studieshigh-temperature ceramics

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	25,532.4	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3700	-	DFT · OptB88vdW
Shear Modulus(G)	10,603.7	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.4766	lb/in³	DFT · OptB88vdW

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

Filter by

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Magnetic Moment(μB)	3.399	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000326	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000332	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	6.817	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	7.010	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)	-0.4636	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.

NpSi2Os2 — Properties & Data | MatWorld

NpSi2Os2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental