Transparent and Performing Ceramics


Transparent and High-Performance Ceramic
- Ultra-fine grain magnesium aluminate MgAl₂O₄
- Average mechanical resistance > 400 MPa according to ASTM C1421-10
- Optical diffusion <0,5%/10mm based on ISO 14782 standard
- Transparent from near UV (300 nm) to infrared (5μm)
- Chemically inert
Technical Parameters
- Transparent from near UV (300 nm) to Mid Wave Infrared MWIR (5500 nm) > 80% without optical coating
- Refractive Index 1.72 à 1.64
- Maximum size 150 x 150 x 20 mm³, 300 x 300 x 7 mm³ available end of 2020
- Thermal conductivity 15 W/m.K
- Density 3.58 g/cm³
- Vickers Hardness 14 GPa
- Toughness 3 MPa.m¹/²
- Biaxial Flexural Strength 400 (average) according to ASTM C1421-10
Unlimited imagination in design
An innovative spinel material in defense , security and personal protection (ballistic protection, opto-electronics , pods, optical imaging, sensors, IR countermeasures), in optics photonics (windows, lenses, prisms, freeform optics, wafers) and in luxury (watchmaking, jewelry and luxury accessories).
A cost-efficient and ultra-performing solution
- Unrivalled mechanical properties
- Resistance under extreme conditions
- Eco-friendly
- Lightweight
- Made in France
- Prize award in 2017 :

TROPHEE PEPITES RTI 2017
Transparent and High-Performance Ceramic :



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- +33 (0)2 32 29 42 00
- 83 Rue Marcelin Berthelot
- 77550 MOISSY-CRAMAYEL
- +33 (0)1 64 13 61 10
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