Engineering Science 1021A/B Lecture 9: Atomic and Ionic Arrangements: Order
17 May 2018
School
Department
Professor
No Order
Completely random distribution of atoms
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Monatomic gases and liquids
○
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Short Range Order
Special arrangements
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•
of atoms with nearest neighbors only
many gases and liquids
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Metal, ceramic and polymer glasses
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Long Range Order
Fixed relationship with nearest neighbors is repeated throughout the material
to form a three-dimensional lattice
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Most solid metals, ceramics and some polymers
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Order
