High School Understanding Crystal Structures: Energy Considerations

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SUMMARY

The discussion centers on the principles governing crystal structures and the energy considerations that dictate their formation. It is established that crystals minimize system energy, leading to their regular arrangement. The conversation highlights the impact of grain boundaries on periodicity and the factors influencing the selection of suitable crystal structures. Understanding these concepts is crucial for grasping the underlying mechanisms of crystallization.

PREREQUISITES
  • Basic understanding of crystallography
  • Familiarity with thermodynamics principles
  • Knowledge of energy minimization in physical systems
  • Awareness of grain boundary phenomena
NEXT STEPS
  • Research the principles of crystallography and crystal growth mechanisms
  • Explore thermodynamic principles related to energy minimization
  • Study the effects of grain boundaries on crystal structures
  • Investigate different types of crystal structures and their stability
USEFUL FOR

Students and researchers in materials science, physicists studying solid-state physics, and chemists interested in crystallization processes will benefit from this discussion.

Adeonaja
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TL;DR
We know most of our solids have crystal forms i.e. atoms arrange themselves in a regular beautiful way. But how can atoms know beforehand to arrange themselves in such ordered manner?
This questions is hovering on my mind from a long time. Why would something which does not have life would want to be in such a beautiful neighborhood, while the world is so much disordered. What causes them to be in that regular array and how they choose which crystal structure is suitable for them?
For now suppose for somehow any reason they want to be in that crystal form but then comes grains i.e. after a so short period of space their periodicity is broken! What decides all this?
From a simple Google search I came know something about energy consideration i.e. system energy is minimized in this form. But this answer seems very blurry would be great if someone emphasizes on this.
 
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