K2BeOs — Properties & Data | MatWorld

K2BeOs

ceramic

· JVASP-74905· K2BeOs

K2BeO₃ is an oxide ceramic compound containing potassium and beryllium—a rare composition that belongs to the family of alkali-beryllium oxides. This material is primarily of research and academic interest rather than established industrial production, with potential applications in specialized ceramic and optical contexts where the unique properties of beryllium-containing systems may offer advantages.

experimental ceramicsoptical/refractory researchhigh-temperature materials developmentadvanced ceramic coatings (potential)

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2031	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	0.1790	eV	DFT · OptB88vdW
↳	0.4020	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	39.74	-	DFT · OptB88vdW
↳	25.28	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.6200	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.7900	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00201	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000235	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-419.8	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	342.4	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	10.12	%	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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	1.329	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	1.325	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.

K2BeOs

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental