KLiBeF4

ceramic

· JVASP-21161· KLiBeF4

KLiBeF4 is a mixed-alkali fluoride ceramic compound combining potassium, lithium, beryllium, and fluorine elements. This material is primarily explored in optical and laser applications due to its fluoride composition, which offers transparency in the ultraviolet and infrared regions and low refractive index characteristics. It is a research-phase material rather than a commodity engineering ceramic, positioned within the wider family of rare-earth-doped fluoride crystals used for solid-state laser hosts and specialized optical components where conventional glasses and ceramics are insufficient.

solid-state laser hostsoptical crystalsUV-IR transparent opticsphotonics researchhigh-energy laser systemsspecialized optical coatings

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	5,478.1	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3000	-	DFT · OptB88vdW
Shear Modulus(G)	2,616.5	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.08215	lb/in³	DFT · OptB88vdW

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

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	7.120	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	4.939	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	1.867	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.06821	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000933	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000262	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-138.8	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	467.7	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)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-3.291	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.

KLiBeF4 — Properties & Data | MatWorld

KLiBeF4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental