PrAlO3 — Properties & Data | MatWorld

PrAlO3

ceramic

· PrAlO3

PrAlO3 (praseodymium aluminate) is a rare-earth perovskite ceramic compound that combines praseodymium oxide with aluminum oxide in a crystalline structure. While not a commodity material, it belongs to a family of rare-earth aluminates studied for high-temperature structural and functional applications where thermal stability and chemical inertness are critical. This compound is primarily of research and specialized industrial interest rather than widespread commercial use, valued in contexts requiring thermally stable ceramics at extreme temperatures or as a component in advanced composite systems.

high-temperature ceramicsrefractory materialsthermal barrier coatingsrare-earth oxide systemsadvanced ceramics researchaerospace thermal protection

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	195.5	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2500	-	DFT · OptB88vdW
Shear Modulus(G)	122.9	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	6.560	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)3 entries	4.142	eV	DFT · OptB88vdW
↳	5.108	eV	DFT · TBmBJ
↳	4.271	eV	DFT · PBE
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	4.547	-	DFT · OptB88vdW
↳	3.929	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.8633	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.857	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)2 entries	0.000	μB	DFT
↳	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00171	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00189	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-219.3	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	403.5	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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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-3.500	eV/atom	DFT
↳	-3.546	eV/atom	DFT · OptB88vdW

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.

PrAlO3

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental