AlCr2O4 — Properties & Data | MatWorld

AlCr2O4

Name: AlCr2O4
Brand: MatWorld

ceramic

· JVASP-58496· AlCr2O4

Chromium aluminate (AlCr₂O₄) is a spinel-structured ceramic compound combining aluminum and chromium oxides, valued for its thermal stability and resistance to chemical attack at high temperatures. It is primarily used in refractory applications, thermal barrier coatings, and high-temperature structural components where resistance to oxidation and thermal cycling is critical. Engineers select this material over conventional alumina or chromia refractories when superior corrosion resistance to molten salts and slag, combined with moderate thermal conductivity control, offers a design advantage in extreme-service environments.

refractory liningsthermal barrier coatingshigh-temperature furnace componentsmolten salt resistanceindustrial kiln materialsaerospace thermal protection

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1692	lb/in³	DFT · OptB88vdW

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

Filter by

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000102	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000956	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	13.03	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	12.59	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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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.1284	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.308	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.

AlCr2O4

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental