-harder and tougher than monocrystalline sapphire
-highly translucent or colored
-purity > 99.99 %
-high thermal and corrosive stability
-available in various color variations
-harder and tougher than glass
-available in various transparent colors
-purity > 99.97 %
-optical active light converter
-transparent and translucent grades available
-purity > 99.99 %
transparent grades (CZ)
-high refractive index
-different transparent colors
translucent grades (TZP)
-highest bending strength and fracture toughness
-translucent colors availlable
-high bending strength combined with high hardness and fracture toughness
-sintered density 99.5% or HiP grade 100%
-highest hardness combined with high bending strength and fracture toughness
-purity 99.97 % or inexpensive alternative 99.8%
Transparent ceramic combines the high quality of single crystals with the good machinability of glass.
This enables a variety of uses such as:
POLYCRYSTAL design GmbH was founded in 2016 with support of Fraunhofer Venture.
We are specialists in transparent and colored oxide ceramics. POLYCRYSTAL has developed new, fast, efficient and cost-effective processes for the production of transparent ceramics and offers a unique variety of attractive colored technical ceramics.
In June 2022 POLYCRYSTAL received the exhibitor award for our new ceramics at the EPHJ in Geneva, the international trade show for the high-precision industry, featuring watchmaking, jewellery, microtechnologies and medtech.
POLYCRYSTAL design GmbH
+49 351 500 61 399
+49 351 500 61 801
Transparent spinel, YAG and polycrystalline Sapphire made by POLYCRYSTAL
Beautiful red ceramics and polycrystalline Sapphire made by innovative POLYCRYSTAL shaping process
YAG:Ce light converter and red luminescent ceramics made by POLYCRYSTAL
POLYCRYSTAL has developed an innovative ceramic forming process to produce high quality ceramics while avoiding extensive machining and waste.
Some examples of colored ceramics manufactured by POLYCRYSTAL
A unique variety of attractive colors for high-strength and scratch resistant ceramics developed by POLYCRYSTAL