See all Spinel families

S25 – S30 High purity and transparency spinels

The best choice between our two spinel standard products S25 & S30 strongly depends on your ceramic process.

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Products characteristics

Standard Spinel products
(Typical values)
Chemical Composition MgAl2O4 MgAl2O4
Crystalline phase (%) ≥ 99% Spinel ≥ 99% Spinel
Corundum ≤ 0.5% ≤ 0.5%
Periclase ≤ 0.5% ≤ 0.5%
Specific Surface Area (m²/g) BET 21 – 24 25 – 28
PSD d50 (µm)
Laser diffraction Horiba LA950
0.2 – 0.3 0.15 – 0.3

Our Spinel features & cusomization

The main characteristics of our Spinel products bring optimal transparency with a low scattering loss, without any coloration or defect (black or white spots), and high mechanical properties. Possibility to customize the Spinel chemical composition: Co, Mn, Fe doping, Al/Mg stoichiometry. These products are also available in spray dry form – Often used for armouring, ballistic, detection, luxury & catalysis applications. S25CR & S30CR are :

  • Controlled in particle size and size distribution
  • High chemical purity: low sulfur content and low metallic impurities
  • Phase purity
  • Constant crystallographic composition


XRD spectrum – spinel S30CR

For a better easiness to use, the range can alos be available in spray-dried and ready-to-press form.


  • S25CR Technical Data Sheet
  • S30CR Technical Data Sheet
  • Safety Data Sheet Spinel – Baikowski®

Main applications

Transparent ceramics for armor windows

Transparent ceramics for armor windows

Smartphone parts

Smartphone parts

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