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What is the thermal stress equation used to calculate the stress induced in a material due to changes in temperature?
The thermal stress equation used to calculate stress induced in a material due to temperature changes is given by: ET where: thermal stress E Young's modulus of the material coefficient of thermal expansion T change in temperature
What happens to the thermal energy of a material when radiation is absorbed in a material?
When radiation is absorbed in a material, the thermal energy of the material increases due to the conversion of radiation energy into heat. This increase in thermal energy can lead to a rise in the temperature of the material.
What causes thermal shock?
Thermal shock is typically caused by sudden and extreme changes in temperature within a material. This can lead to stress and ultimately cracking or breaking of the material. Factors such as rapid heating or cooling, temperature differentials, and material properties can all contribute to thermal shock.
What is the thermal expansion coefficient for steel c 15?
thermal expansion depends on Temperature and material of steel
Define thermal conductivity?
Thermal conductivity is a material property that describes the ability of a material to conduct heat. It is defined as the rate at which heat is transferred through a material per unit of thickness, area, and temperature difference. Materials with high thermal conductivity transfer heat more efficiently than materials with low thermal conductivity.
Which term describes the increase in a material's volume due to an increase in temperature?
Thermal expansion is the term that describes the increase in a material's volume due to an increase in temperature. As the material's temperature rises, its particles have more kinetic energy, leading them to move farther apart, which causes the material to expand.
What is the thermal energy that flows from a material with a higher temperature to one with a lower temperature?
Heat is the thermal energy that flows from a material with a higher temperature to one with a lower temperature. This flow of heat occurs due to the temperature difference between the two materials, with heat transferring in the direction of decreasing temperature.
What determines a system's thermal energy?
The thermal energy of a system is determined by the temperature of the system and the amount of material present.
What happens when thermal energy of a material decreases?
When the thermal energy of a material decreases, the average kinetic energy of its particles decreases as well. This can lead to a decrease in temperature and a potential phase change if the temperature drops below the material's melting or boiling point.
How can one determine the thermal conductivity of a material?
The thermal conductivity of a material can be determined by conducting a thermal conductivity test, which involves measuring the rate at which heat flows through the material. This test typically involves applying a heat source to one side of the material and measuring the temperature difference across the material to calculate its thermal conductivity.
What is thermal migration?
Thermal migration refers to the movement of atoms or molecules within a material in response to temperature changes. This can lead to the redistribution of constituents within the material, affecting its properties such as mechanical strength or conductivity. Thermal migration is commonly observed in materials undergoing thermal processing or experiencing temperature gradients.
How can one determine thermal energy in a system?
One can determine thermal energy in a system by measuring the temperature of the system and the amount of material present, and then using the specific heat capacity of the material to calculate the thermal energy.
