THERMAL HYSTERESIS Meaning and
Definition
-
Thermal hysteresis refers to the phenomenon where the transition temperature of a material, such as a phase transition from solid to liquid, or magnetic phase transitions, differs depending on whether the material is being heated or cooled. It is a characteristic observed in a variety of substances, including polymers, liquids, and alloys.
In the context of phase transitions, thermal hysteresis occurs due to the presence of structural changes or instabilities within the material. These instabilities may cause energy barriers between the different phases, resulting in a discrepancy between the temperature at which a phase transition begins during heating (the critical temperature) and the temperature at which it completes during cooling. The range between these temperatures is often referred to as the hysteresis loop.
Thermal hysteresis can also be observed in the behavior of various physical properties, such as magnetization or electrical conductivity, where the response of the material depends on its thermal history. For instance, in ferromagnetic materials, the Curie temperature (the temperature at which they exhibit magnetic properties) may differ between heating and cooling cycles.
Understanding thermal hysteresis is important in various fields, including materials science, physics, and engineering, as it can impact the performance and reliability of devices and systems that involve phase transitions or temperature-dependent properties. By characterizing and studying thermal hysteresis, scientists and engineers can design and optimize materials for specific applications, such as shape-memory alloys or sensors.
Common Misspellings for THERMAL HYSTERESIS
- rhermal hysteresis
- fhermal hysteresis
- ghermal hysteresis
- yhermal hysteresis
- 6hermal hysteresis
- 5hermal hysteresis
- tgermal hysteresis
- tbermal hysteresis
- tnermal hysteresis
- tjermal hysteresis
- tuermal hysteresis
- tyermal hysteresis
- thwrmal hysteresis
- thsrmal hysteresis
- thdrmal hysteresis
- thrrmal hysteresis
- th4rmal hysteresis
- th3rmal hysteresis
- theemal hysteresis
- thedmal hysteresis
Etymology of THERMAL HYSTERESIS
The word "thermal hysteresis" is formed by combining two terms: "thermal" and "hysteresis".
The term "thermal" relates to heat or temperature. It is derived from the Greek word "therme" meaning "heat".
The term "hysteresis" originates from the Greek word "husterēsis", which means "lack" or "deficiency". In physics, hysteresis refers to the lagging of an effect behind its cause, creating a loop-like behavior in a system. It is often used to describe a phenomenon where the value of a physical property depends on the history of its change.
Therefore, the term "thermal hysteresis" refers to the lag or difference in temperature behavior exhibited by a material or system during heating and cooling cycles.
Infographic
Add the infographic to your website:
