Raw Materials to Final Production Flashcards
Mass & Weight
Mass - a coherent, typically large body of matter with no definite shape
Weight - An objects relative mass or the quantity of matter contained by it
Volume
the amount of space measured in cubic units
Density
the mass per unit volume
density = mass/volume
Resistance
the ratio of the potential difference across the component to the current flowing through it
Electrical Resistance
a measure of the degree to which an electrical component opposes the passage of en electrical current
Thermal Conductivity
a measure of how fast heat is conducted through a slab of material with a given temperature difference across the slab
Thermal Expansion
a measure of the degree of increase in dimensions when an object is heated
Hardness
the resistance a material offers to penetration or scratching
Tensile Strength
the ability of a material to withstand pulling force
Stiffness
the resistance of an elastic body to deflection by an applied force.
Toughness
the ability of a material to resist the propagation of cracks. (where out)
the ability of a material to absorb energy when impacted (absorb impact)
Ductility
the ability of a material to be drawn for extruded into a wire or other intended shape.
Elasticity
the ability of a body to resist a distorting influence or stress and to return to its original size and shape when the stress is removed
Plasticity
the propensity of a material to undergo permanent deformation under load
Brittle
when a material is hard to break or shatter easily
Stress
the force per unit area of a material
Strain
extension or reduction per unit length
strain = extension / original length
Young’s Modulus
(elastic modulus)
a mechanical property of linear elastic solid materials
defines the relationship between stress and strain
Aesthetic Characteristics
taste, smell, appearance, and texture
Smart Material
they have one or more properties that can be significantly changed in a controlled fashion by external stimuli
stress, moisture, electric/magnetic fields, light, temperature, pH, or chemical compounds
Shape memory
the ability to recover their original shape from a significant and seemingly plastic deformation when a particular stimulus is applied.
Photochromism
the reversible transformation of a chemical species between two forms by the absorption of electromagnetic radiation, where the two forms have different absorption spectra.
Thermoelectricity
a material subject to a temperature gradient, generates an electric charge.
Magneto-Rheostatic vs Electro-Rheostatic
electro-rheostatic fluids undergo viscosity change when exposed to an electric field
magneto-rheostatic fluids undergo similar changes when exposed to a magnetic field.
