CaAl4O7 — Properties & Data | MatWorld

CaAl4O7

Name: CaAl4O7
Brand: MatWorld

ceramic

· CaAl4O7

CaAl₄O₇ is a calcium aluminate ceramic compound belonging to the family of aluminate ceramics, which are inorganic, crystalline materials formed from calcium and aluminum oxides. This material is primarily encountered in high-temperature structural applications and cement chemistry, where calcium aluminates serve as key phases in calcium aluminate cements (CAC) used for rapid-setting, high-temperature-resistant binders. Engineers select calcium aluminates for applications demanding thermal stability, chemical resistance to aggressive environments, and fast strength development, making them valuable alternatives to Portland cement in refractory linings, specialized concrete formulations, and metallurgical applications.

refractory materialshigh-temperature binderscalcium aluminate cementmetallurgical furnace liningsrapid-setting concretechemical-resistant coatings

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	119.7	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3300	-	DFT · OptB88vdW
Shear Modulus(G)	49.61	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	2.832	kg/m³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	4.281	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	2.829	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000845	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00123	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-118.5	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	273.7	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.

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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.00450	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-3.321	eV/atom	DFT · OptB88vdW
↳	-3.454	eV/atom	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

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.

CaAl4O7

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental