Annealing : The materials is treated at elevated temperature for improving the properties.
Materials annealing can lead phase transition, re-crystallization, homogenization, relaxation of internal stress, rearrangement defect and so on.
The result of annealing depend significantly on its kinetic: the rate (time dependent) of heating or cooling of exposure at a given temperature.
There are two types of annealing:
1. Isothermal Annealing - long time materials exposed at a constant temperature.( Materials with defect of particular type)
2. Isochronal Annealing - During the materials exposed, successively increasing in temperature with respect to time. (Presence of defect of different Kinds)
Then what is the difference between annealing and calcination?
Time Dependent heating process - annealing
Heating without absence of Air - Calcination
- Badges
- Science topic
- Similar topics
- Engineering
- Materials Engineering
- Annealing