RbAlF4 — Properties & Data | MatWorld

RbAlF4

metal

· RbAlF4

RbAlF4 is a rubidium aluminum fluoride compound that belongs to the fluoride salt family, typically investigated for its ionic and crystalline properties. This material is primarily of research and developmental interest rather than established commercial production, with potential applications in solid-state ionics, optical materials, and specialized ceramic systems where fluoride compounds offer unique thermal and electrochemical characteristics. Engineers would consider this compound for applications requiring high ionic conductivity, thermal stability, or transparency in the UV-visible spectrum, though material availability and processing methods remain limiting factors for widespread adoption.

solid-state electrolytesfluoride ceramicsoptical windowsionic conductorsresearch materialshigh-temperature chemistry

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)2 entries	67.81	GPa	DFT · OptB88vdW
↳	48.96 range 41.98–55.93median of 2 measurements	GPa	DFT
Poisson's Ratio(ν)	0.2700	-	DFT · OptB88vdW
Shear Modulus(G)2 entries	39.35	GPa	DFT · OptB88vdW
↳	28.62 range 28.58–28.65median of 2 measurements	GPa	DFT

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
Density(ρ)	3.666	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	7.523	eV	DFT · OptB88vdW
↳	10.27	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)3 entries	6.699	-	DFT · OptB88vdW
↳	7.600	-	DFT · PBE
↳	4.853 range 2.076–7.629median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	2.114	-	DFT · OptB88vdW
↳	1.790	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00106	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000796	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-147.5	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	450.5	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)	0.00530	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-3.567	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

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RbAlF4

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