NpIO — Properties & Data | MatWorld

NpIO

ceramic

· JVASP-25690· NpIO

NpIO is a ceramic compound containing neptunium and iodine/oxygen, representing a specialized actinide-based ceramic material primarily of research and nuclear science interest. This material belongs to the family of actinide compounds studied for nuclear fuel forms, waste immobilization, and fundamental materials characterization in the nuclear industry. While not commonly deployed in conventional engineering applications, NpIO and related actinide ceramics are investigated for their potential in advanced nuclear fuel cycles, actinide chemistry research, and the development of durable ceramic waste forms for long-term storage of transuranium elements.

nuclear fuel researchactinide materials characterizationradioactive waste immobilizationadvanced nuclear chemistryexperimental ceramic systemsmaterials science databases

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	43.28	GPa	DFT · OptB88vdW
Exfoliation Energy(Eexf)	52.29	meV/atom	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2400	-	DFT · OptB88vdW
Shear Modulus(G)	26.61	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	8.614	kg/m³	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)	8.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000165	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000177	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-18.94	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-19.70	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)	-2.343	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.

NpIO

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental