Rb3Si — Properties & Data | MatWorld

Rb3Si

ceramic

· JVASP-38151· Rb3Si

Rb3Si is an intermetallic ceramic compound in the rubidium-silicon system, belonging to a family of alkali-metal silicides that are primarily of research and exploratory interest rather than established engineering materials. This compound and related rubidium silicides are investigated in materials science for their potential in specialty applications including hydrogen storage, ionic conductivity, and advanced ceramics, though industrial deployment remains limited. Engineers would consider this material mainly in early-stage development projects focused on novel energy storage systems or solid-state ionic devices rather than conventional structural or thermal applications.

research ceramicshydrogen storage systemssolid-state ionicsspecialty intermetallicsexploratory energy materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	2.576	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	0.000	eV	DFT · TBmBJ
Magnetic Moment(μB)	2.082	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.0000217	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000204	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	11.04	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	10.61	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)	0.2739	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	0.2499	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.

Rb3Si

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental