Yttrium Aluminate Single Crystal

(YAlO₃, Perovskite – YAP)

Yttrium Aluminate-Perovskite (YAP) crystals is an important crystal substrate material with excellent optical performance, physical and chemical properties. YAP crystal has a similar structure to YAG crystals.

Rare-earth and transition-metal ions doped with YAP are widely used for laser applications, scintillators, holographic record and optical data storage, dosimeters for ionizing irradiation and substrates for HTSC Film growth.

Formula                                        YAlO₃

Crystal Growth Method              Czochralski (CZ)

Crystal Structure                         Orthorhombic

Growth direction                          [010]

Lattice Constant                           a = 0.518027 nm

                                                         b = 0.532951 nm

                                                         c = 0.737059 nm

Color                                              Colorless

Density                                          4.55 gm/cm³

Melting Point                                1870^oC

Thermal Expansion                      2 – 10 x 10^-6oC

Mohs Hardness                            8.5

Available sizes: 10 mm x 10 mm, 10 mm x 15 mm, 15 mm x 15 mm, 20 mm x 20 Available thicknesses: 0.5 mm, 1.0 mm

Surface Finishes: As Cut, 1 Face Polished, 2 Faces Polished (Ra < 5 Å)

Available Orientations: (100), (010), (001); (+/- 0.5^o)