In materials science
is a solid material's ability to deform under tensile
stress; this is often characterized by the material's ability to be stretched into a wire. Malleability
, a similar property, is a material's ability to deform under compressive
stress; this is often characterized by the material's ability to form a thin sheet by hammering or rolling. Both of these mechanical properties are aspects of plasticity
, the extent to which a solid material can be plastically deformed without fracture
. Also, these material properties are dependent on temperature and pressure (investigated by Percy Williams Bridgman
as part of his Nobel Prize–winning work on high pressures).