what is densification? write the answer in professional technical terms

Densification, in the context of material science and engineering, refers to the process of increasing the density of a material. This is typically achieved by reducing the volume of voids or pores within the material, often through the application of heat or pressure. Densification can enhance the mechanical properties of a material, such as its strength and hardness, and can also improve its thermal and electrical conductivity. It is a critical process in the production of many materials, including ceramics, metals, and polymers.