KNa2Bi — Properties & Data | MatWorld

KNa2Bi

ceramic

· JVASP-40945· KNa2Bi

KNa2Bi is an intermetallic ceramic compound containing potassium, sodium, and bismuth—a mixed-alkali bismuth compound that belongs to the family of complex ionic and intermetallic ceramics. This material is primarily of research interest rather than established in high-volume industrial production; it represents exploration into bismuth-based ceramics for potential applications requiring moderate stiffness and low density combined with chemical or thermal stability. Engineers would consider this material in specialized contexts where bismuth's unique electrochemical or radiation-shielding properties, combined with ionic stability, could provide advantages over conventional oxides or purely metallic systems.

radiation shielding researchelectrochemical applicationsexperimental bismuth ceramicsionic conductor developmenthigh-temperature chemistryspecialized refractory compounds

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	18.17	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2200	-	DFT · OptB88vdW
Shear Modulus(G)	12.94	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	3.996	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.1040	eV	DFT · OptB88vdW
↳	0.9380	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	23.57	-	DFT · OptB88vdW
↳	7.798	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000121	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00173	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-27.93	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	242.7	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	31.28	%	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)	-0.4708	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.

KNa2Bi

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental