Hardness - Import export

Alumina-Zirconia (ZTA) ceramic composites are unique ceramic materials by way of exhibiting a combination of high hardness, strength, wear and corrosion resistance characteristics to their alumina component while still maintaining reasonably high fracture toughness specific to its zirconia component.

Like oxides and nitrides, Silicon Carbide (SiC) is a very hard-wearing material, again requiring diamond-grinding methods to process once fired. Although not exclusively, carbides are used mainly for applications in which physical wear is a major consideration. They are amongst the hardest materials available.

Alumina is the more common name of aluminium oxide. It is a hard-wearing technical ceramic offering an excellent combination of both mechanical and electrical properties and is ideally suited to a wide range of industrial applications.