Ca5Al2Sb6 — Properties & Data | MatWorld

Ca5Al2Sb6

Name: Ca5Al2Sb6
Brand: MatWorld

metal

· Ca5Al2Sb6

Ca5Al2Sb6 is an intermetallic compound combining calcium, aluminum, and antimony elements, belonging to the family of Zintl phases—a class of compounds with semimetallic or semiconducting character formed between electropositive and electronegative elements. This material is primarily of research and developmental interest rather than an established industrial commodity; compounds in this family are investigated for potential applications in thermoelectric devices, where the combination of low thermal conductivity with semiconducting properties can enable efficient thermal-to-electrical energy conversion. The specific role of antimony and the calcium-aluminum framework suggests potential use in solid-state cooling or waste-heat recovery systems where conventional materials fall short.

thermoelectric materials researchsolid-state heat managementenergy conversion deviceslow-thermal-conductivity semiconductorsmaterials screening for cryogenic or thermal gradient applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Thermal Conductivity(k)2 entries	1.230	W/(m·K)	Measured · 127°C
↳	1.230	W/(m·K)	Measured

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
Density(ρ)	4.304	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)	0.2090	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	15.92	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	0.01333	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.01333	me	DFT · OptB88vdW · 27°C
Electrical Conductivity(σ)	2.445	S/cm	Measured · 127°C
Electrical Resistivity(ρe)	0.00409	Ω·m	Measured · 127°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)3 entries	0.00134	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00190	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
↳	0.0000524	W/(m·K²)	Measured · 127°C
Seebeck Coefficient(S)3 entries	-189.2	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	176.5	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
↳	463	μV/K	Measured · 127°C
Thermoelectric Figure of Merit(zT)	0.01704	-	Measured · 127°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)	-0.8694	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

Export Control

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.

Ca5Al2Sb6

Thermal Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

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