KRbO — Properties & Data | MatWorld

KRbO

ceramic

· JVASP-50168· KRbO

KRbO is an inorganic oxide ceramic compound containing potassium, rubidium, and oxygen. This material belongs to the mixed-alkali metal oxide family and is primarily of research and scientific interest rather than established commercial production. It is studied in solid-state chemistry, materials physics, and potentially in emerging applications requiring specific ionic conductivity or structural properties that depend on the presence of two alkali metal cations.

solid-state researchionic conductivity studiesexperimental ceramicsmaterials characterizationalkali metal oxide compounds

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	24.52	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.1700	-	DFT · OptB88vdW
Shear Modulus(G)	690.0	MPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	3.268	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	1.794	eV	DFT · OptB88vdW
↳	4.156	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	6.604	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	3.591	-	DFT · OptB88vdW
↳	2.719	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000818	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000684	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-121.5	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	479.4	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)	0.1082	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.109	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.

KRbO

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental