Chapter3-lecture 4

Chapter3-lecture 4 - Chapter 3 Crystalline Structure -...

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Chapter 3 Crystalline Structure - Perfection Issues to address for Chapter 3--- How do atoms assemble into solid structures? How does density depend on the structure? How to characterize crystalline structures?
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Copper wire is soft and ductile while magnesium wire is stiff and brittle Why Crystal Structure? – Crystal Structure Affect Properties Copper (FCC) Magnesium (HCP)
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Unit Cell Figure 3-1, Shackelford Central feature of crystalline structure : Regular and repeating Unit cell : Simplest choice of representative structural unit that completely describes the pattern of a crystalline structure.
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Unit Cell Lattice points – The vertexes of the unit cell Lattice Constants (Lattice Parameters) – length of unit cell edges and angles between crystallographic axes Figure 3-2, Shackelford
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Seven Crystal Systems Unique unit-cell shapes that can be stacked together to fill three- dimensional space
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Fourteen Bravais Lattices How atoms (viewed as hard spheres) can be stacked together within a given unit cell
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This note was uploaded on 10/03/2011 for the course EMCH 371 taught by Professor Dai-hattrick during the Spring '11 term at South Carolina.

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Chapter3-lecture 4 - Chapter 3 Crystalline Structure -...

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