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Crystal structure
- 1. By (Dr. M KManik) HOD.mechccetb@gmail.com Crystal structure
- 2. Crystal structure Solids aretwo Types: Amorphous solids : Amorphous solids are a type of solid that lacks definite shape, pattern and long- range order. They are opposite to crystalline solids. Amorphous solids do not have a well defined melting point. Crystalline solid which have a defined shape, pattern, and long range order of their atomic arrangement
- 3. Crystalline solid whichhave a defined shape, pattern, and long range order of their atomic arrangement
- 5. Why amorphous solidsare isotropic in nature and crystalline solids are anisotropic in nature? In amorphous solids the arrangement of particles is irregular in all directions hence the value of any physical property is same along any direction. Hence they are isotropic in nature A crystal is a solid material that contains atoms or groups of atoms arranged in a highly ordered structure. This structural arrangement is three-dimensional A crystalline material consists of primarily organized crystal structure. The crystal is then represented as a lattice, that is, a three-dimensional array of points (lattice points), each which has identical surroundings
- 10. Unit cells aretwo types: 1.Primitive unit cell Having only corner toms 2. Non primitive/ Centered unit cell having centered atom with corner atoms a)Body centered b)Face centered c)End centered
- 11. Three axis and anglesof unit
- 14. Process of calculatingpacking factors and percentage of atom economy
- 18. Various defect incrystalline structures
- 20. Two types ofline defects in crystal
- 22.