RbNaSi2O5 — Properties & Data | MatWorld

RbNaSi2O5

ceramic

· JVASP-25583· RbNaSi2O5

RbNaSi2O5 is a mixed-alkali silicate ceramic compound combining rubidium and sodium with silica, belonging to the family of alkali silicate glasses and ceramics. This material is primarily of research and specialized industrial interest, particularly in optical, electronic, and thermal applications where its mixed-alkali composition provides enhanced durability and modified thermal properties compared to single-alkali silicates. The rubidium-sodium combination is explored for advanced glass formulations, solid-state ion conductors, and ceramic matrices where intermediate thermal expansion and chemical stability are advantageous.

specialty optical glasssolid-state electrolytesthermal barrier coatingsglass-ceramic compositesresearch and development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	6,677.5	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2500	-	DFT · OptB88vdW
Shear Modulus(G)	4,042.2	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1132	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	4.796	eV	DFT · OptB88vdW
↳	6.952	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	2.609	-	DFT · OptB88vdW
↳	2.113	-	DFT · TBmBJ
Thermoelectric Power Factor(PF)2 entries	0.000580	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000324	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-92.98	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	441.1	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.000	%	DFT · TBmBJ

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)	-2.679	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.

RbNaSi2O5

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental