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YAP


Properties and Data
Physical Properties
Composition
YAlO3
Chemical Name
Yttrium Orthoaluminate
alt. Yttrium Aluminium Perovskite
Molecular Weight
163.884 g/mol
Density
4.88 - 5.4 g/cm3
Mohs Hardness
8.5
Melting Point
1875 °C (3407 °F)
Crystal System
Orthorhombic
Optical Properties
Type
Biaxial (-)
Refractive Index
nα = 1.96
nβ = 1.94
nγ = 1.97
Dispersion Factor
?
Birefringence
δ = 0.03
Additional Information
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Variants and Types
Tm:YAP
Tm:YAP
Color: Beige to Dark Orange
Cause: Thulium Ions
Ce:YAP
Ce:YAP
Color: Colorless to Beige
Cause: Cerium Ions
Production and Synthesis
Czochralski Method
Czochralski Method
Involves pulling a crystal (boule) upward from a molten solution. Produces some of the purest crystals but requires a cleanroom environment.
References
REFERENCES





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