Thermal Properties Flashcards
refers to the response of a material to the application of heat. As a solid
absorbs energy in the form of
heat, its temperature rises and its
dimensions increase.
Thermal property
properties that are often critical in the practical utilization of solids.
Heat capacity
Thermal expansion, and
Thermal conductivity
a property that is indicative
of a material’s ability to absorb heat from the external surroundings;
(The ability of a material to absorb heat)
Heat Capacity
Two ways to measure heat capacity:
Cp
: Heat capacity at constant pressure.
Cv
: Heat capacity at constant volume.
are in the form of lattice waves or phonons
Atomic vibrations
dependence of fractional length change on the linear coefficient of thermal expansion and the
temperature change; Most solid materials expand upon heating and contract when cooled.
THERMAL EXPANSION
3 Types of Thermal Expansion
- Linear expansion
- Area expansion
- Volume expansion
The relative expansion of the
material divided by the change in
temperature is known as the
Coefficient of linear thermal expansion
the phenomenon by which heat is transported from high- to low-temperature regions of a substance.
Thermal conduction
The property that characterizes the ability of a material to transfer heat is
Thermal conductivity
stresses induced in a body as a result of changes in temperature. An understanding of the origins and nature of thermal stresses is important because these stresses
can lead to fracture or undesirable plastic deformation.
Thermal stresses
The capacity of a material to withstand failure (Crack formation and brittle fracture)
Thermal shock resistance
