Please enable JavaScript.
Coggle requires JavaScript to display documents.
PROPERTIES OF MATERIALS: determine if we can use a certain material…
PROPERTIES OF MATERIALS: determine if we can use
a certain material according to its characteristics
CLASSIFICATION: CATEGORIES
METALS
POLYMERS
CERAMICS
COMPOSITES
SMART MATERIALS
MECHANICAL P.: ability of materials to resist an external force
STRENGHT: ability to resist forces .
HARDNESS is the ability to resist abrasion scratches
STIFFNESS is the ability to resist deformation
ELASTICITY is the ability to regain the original shape when the force is removed
DUCTILITY is the ability to deform when stretched
MALLEABILITY is the ability to deform under compression and take a new shape
BRITTLENESS is the tendency to break when subjected to stress
THERMAL P.: how materials react to heat
THERMAL CONDUCTIVITY is the ability to conduct heat
MELTING POINT: temperature at which a material changes its status from solid to liquid
THERMAL EXPANSION is the ability to change dimension with a change in temperature
SPECIFIC HEAT is a measure of the amount of energy required to change the temperature of a given mass of material
ELECTRICAL P.: how materials react to electricity
CONDUCTIVITY is the ability to conduct electricity. Materials are divided in conductors, semiconductors and insulators
RESISTIVITY is the ability to resist the flow of electricity throught it
CHEMICAL P.: how materials react to chemical change
CHEMICAL RESISTANCE/REACTIVITY is the ability to resist oxidation
ATOMIC VOLUME is a parameter to determine the density of materilas
DENSITY is the relationship between the mass of the substance and how much space it takes up (volume)