PuSi2 — Properties & Data | MatWorld

PuSi2

ceramic

· JVASP-15916· PuSi2

PuSi₂ is a plutonium silicide ceramic compound belonging to the refractory intermetallic family, characterized by high hardness and thermal stability at elevated temperatures. This material is primarily of research and nuclear applications interest, used in specialized nuclear fuel forms, advanced reactor concepts, and fundamental materials studies of actinide compounds. PuSi₂ is notable within the plutonium metallurgy field for its potential in accident-tolerant fuel development and as a model system for understanding actinide-silicon phase chemistry, though it remains largely confined to laboratory and defense research contexts rather than commercial deployment.

nuclear fuel formsadvanced reactor researchrefractory ceramicsactinide materialshigh-temperature phasesmaterials science research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	87.66	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3100	-	DFT · OptB88vdW
Shear Modulus(G)	46.15	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	8.831	kg/m³	DFT · OptB88vdW

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

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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)	5.388	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00159	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00159	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-52.51	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-52.77	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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.01420	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.5058	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.

PuSi2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental