YAlO3 — Properties & Data | MatWorld

YAlO3

ceramic

· YAlO3

Yttrium aluminum oxide (YAlO₃) is a crystalline ceramic compound belonging to the family of rare-earth oxide ceramics, characterized by its perovskite-like structure. It is primarily used in advanced optoelectronic and photonic applications, particularly as a substrate material for epitaxial growth of functional thin films and as a host matrix for rare-earth dopants in laser systems and scintillator devices. YAlO₃ is valued for its chemical stability, high thermal conductivity relative to other oxide ceramics, and compatibility with a wide range of functional materials, making it a preferred choice where precision substrate properties and optical transparency in specific wavelength ranges are critical.

laser host crystalsthin-film substratesscintillator detectorsoptoelectronic deviceshigh-temperature structural applicationsoptical coatings

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	30,816.2	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2200	-	DFT · OptB88vdW
Shear Modulus(G)	21,387.3	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1910	lb/in³	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	5.872	eV	DFT · PBE
↳	6.200	eV	DFT · GLLB-SC
↳	5.704	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	19.67	-	DFT · OptB88vdW
Magnetic Moment(μB)3 entries	0.000	μB	DFT
↳	0.0000309	μB	DFT
↳	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00116	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000778	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-326.1	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	397.5	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.

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

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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.02810	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)3 entries	-3.560	eV/atom	DFT
↳	0.1400	eV/atom	DFT
↳	-3.607	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.

YAlO3

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental