Ceramics are non-metallic, non-organic materials.
They exhibit excellent resistance to high temperatures. Although they have comparatively low densities, they are extremely hard but tend to be brittle. They show good resistance to both abrasives and chemicals.
A low density, permeable structure of cells and continuous ligaments offering a high surface area to volume ratio, and also a high strength to weight ratio.
Owing to the nature of this material, dimensions are nominal.