decalescent
Học thuậtThân thiện
Definition
Adjective 1. Absorbing heat without a corresponding increase in temperature: Describes a substance, typically a metal, that absorbs additional heat energy without showing a rise in temperature during a specific phase transition, such as a change in its crystalline structure.
Usage
The term decalescent is a highly specialized, technical adjective used almost exclusively in metallurgy and materials science. It describes a physical phenomenon observed when heating a material, like steel, through a critical temperature range.
Examples
- The decalescent behavior of the alloy was carefully monitored during the heat treatment process.
- At the decalescent point, the iron-carbon mixture absorbs latent heat.
- This decalescent effect indicates the transformation of pearlite into austenite.
Advanced Usage
- Decalescent point: The specific temperature at which a material exhibits decalescence. This is a critical point in phase diagrams.
- The steel's decalescent point is a key factor in determining its annealing temperature.
Variants and Related Words
- Decalescence (noun): The phenomenon or property of being decalescent.
- The decalescence of the metal was recorded on the thermal graph.
Synonyms
- Endothermic (at a phase change): While "endothermic" broadly describes any heat-absorbing process, decalescent specifically refers to the heat absorption during a phase transition in solids, particularly metals.
Antonyms
- Recalescent: Describes a substance that heat without a drop in temperature during a phase change, typically upon cooling.
- The recalescent point occurs during the cooling cycle, opposite to the decalescent point during heating.
Adjective
- absorbing heat without increase in temperature when heated beyond a certain point
- the decalescent point of steel