MgAl₂O₄ (Magnesium Aluminate) substrate

MgAl₂O₄ monocrystal substrate

Magnesium Aluminate (MgAl₂O₄) possesses a spinel structure that provides good lattice matching with various oxide materials. They are widely used in optoelectronic devices as substrates, in ceramic components for high-temperature and abrasive environments, and in microelectronics.

For inquiry, please give us the following information:

  1. Size with tolerance (Length / Width / Thickness )
  2. Orientation
  3. Polishing Side (SSP or DSP )
  4. Quantity
Crystal Structure Cubic    a=8.083 Å
Growth Method CZ
Density 3.64 g/cm3
Melt Point 2130 °C
Hardness 8 (Mohn)
Thermal Expansion 7.45 x (10-6/°C)
Phase Velocity 6500  m/s  at <100> shear wave
Propagation Loss 6.5    dB/ms
Standard size: (Length x Width) 5×3 mm, 5×5 mm, 6.35×6.35mm, 10x5mm, 10x10mm, 12.7×12.7mm, 15x15mm, 20x20mm, Dia25.4mm, Dia50.8mm
Thickness:  0.5mm, 1.0mm, or else upon customer’s request
Surface:  One side or Both sides polished
Orientation <100>+/-0.5degree, <110>+/-0.5degree, <111>+/-0.5degree

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