Li2CaHfF8 — Properties & Data | MatWorld

Li2CaHfF8

ceramic

· Li2CaHfF8

Li2CaHfF8 is a lithium-calcium hafnium fluoride ceramic compound, belonging to the family of mixed-metal fluorides with potential applications in ionic conductivity and solid-state electrolyte research. This is an emerging research material rather than an established commercial ceramic; compounds in this structural family are investigated for superionic conductivity and as alternatives to oxide-based ceramics in specialized electrochemical and optical applications. Engineers and researchers would evaluate this material primarily for advanced energy storage systems, fluoride-based solid electrolytes, or optical/thermal applications where the combination of light alkali metals (lithium, calcium) with refractory hafnium provides unique functional properties.

solid-state electrolyteslithium-ion batteries (research)optical window materialsthermal management ceramicsionic conductor research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	81.76	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3200	-	DFT · OptB88vdW
Shear Modulus(G)	34.61	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	4.643	kg/m³	DFT · OptB88vdW

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Method

Property	Value	Unit	Conditions
Band Gap(Eg)	7.077	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)2 entries	7.572	-	DFT · OptB88vdW
↳	5.269 range 2.331–8.207median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)	2.379	-	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	0.01197	C/m²	DFT · OptB88vdW
↳	0.03614	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	19.57	%	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)	-3.796	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.

Li2CaHfF8

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental