Lithium Aluminium Oxide
LiAlO3

Crystal Specifications

Substrate

LiAlO3

Crystal structure

422 tetragonal

Cell parameter

a = 5.1687 Å
c = 6.2676 Å

Melting pointø(°K÷)

1973

Density ø(g/cm3÷)

2.615

Thermal expansion (x 10-6k-1)

αaa = 7.1 
αac = 15 
(393-973°K)

Dielectric constant (εer)

 

Hardness (Mohs)

6.5

Growth Method

Czockralski

Specifications

Standard Size

Ф?20, 20 x 20, 10 x 10, 10 x 5, 10 x 3 mm
or customer design

Thickness

0.5 mm, 1.0 mm

Thickness tolerance

±0.02 mm or 0.005 mm for special order

Polish

one side or two sides

Orientation

(100) (110) (111)

Orientation accuracy

± 0.5°

Edge Orientation accuracy

2° or 1° for special order

Cut with special tilt angle

available (tilt angle: 1° - 45°)

Micro Roughness Ra

≤= 5 Å (5 μm × 5 μm)