About Ceramic Materials

SPT has extensive experience in the field of ceramic materials


Technical ceramics have become a preferred material in many industries today because of their performance, durability and appearance. The properties of most ceramic materials make them suitable for a wide variety of applications.
Upon request, the materials can be certified according to international ISO or ASTM standards.


1. Alumina

Properties Units Al2O3 99,7% Alumina Ceramic Oxide 99,99% Polycristalline Ruby Zirconia Toughened Alumina Zirconia Toughened Alumina Zirconia Toughened Ruby
SPT Denomination   A R CT AZ AZR
Density g/cm3 3.9 3.98 3.9 4.0 4.25 4.25
Colour   Ivory White (translucent available) Red (translucent available) White White Pink
Flexural Strength MPa 310 710 710 750 930 930
Hardness HV 1 1'800 2'180 2'200 2'150 2'060 2'100
Grain Size µm < 3 < 1 < 2  < 1.5 < 0.9  < 0.9

 

2. Zirconia

Properties Units Zirconia ZrO2-3Y Zirconia ZrO2-3Y Zirconia Alumina Zirconia Alumina
SPT Denomination   Z ZBL ZF  AZO
Density g/cm3 6.0 6.0 6.0 5.5
Colour   Ivory Black White White
Flexural Strength MPa 1'350 1'350 1'400 2'000
Hardness HV 1 1'300 1'300 1'300 1'500
Grain Size µm < 0.6 < 0.6 < 0.6 < 0.5  

 

 

 

 

Ceramic Materials