Good electrical conductivity poor insulator good thermal conductivity poor.
Density of ceramics and metals.
Compared to metals ceramics tend to have less than half of the density.
The density of ceramics is intermediate between polymers and metals.
Their strength stiffness and melting temperatures are generally much lower than those of metals and ceramics.
Opaque optical properties transparent.
Moderate to low density high strength depends on the quality of the specimen brittle at low temperatures.
Non crystalline materials are less dense than crystalline ones.
High tensile strength low.
Pure tungsten carbide can be made as an advanced technical ceramic using a high temperature hot isostatic pressing process.
Crystalline materials have high density than non crystalline materials.
Ceramics are intermediate in density between polymers lower and metals higher in the range of 2 6 gms cm3.
Usually they are low density and are not stable at high temperatures.
These ceramic metals or cermets have wide use as cutting tools and other metal forming tools.
Furthermore tungsten is heavier than lead and around the same weight as gold making it an unusually dense material.
Whereas ceramics are mixtures of glass essentially and other materials.
Low to moderate electrical and thermal conductivities can be engineered to be ductile or brittle.
Low shear strength high.
Generally ceramic particles are fine and coarse.
However its weight.
Compositions with several allotropes such as sio2 will have minor differences in density.
Metals are ductile ceramics are not.
Click thermal properties of ceramics are governed by the type of bonding covalent to.
They can be readily formed into complex shapes.
This material has very high hardness and wear resistance and is used for abrasive water jet nozzles.
This chart displays specific gravity of materials which is the density of a material relative to the density of water.
Metals are made of metallic elements or compounds alloys or mixtures of metallic elements with other materials.
Metallic type of bonding ionic covalent.
Lighter than metals and ceramics.