14 standard unit cells could be derived from all
possible la5ce networks
a)
Quiz 1
b)
Hint: Its tail should be located at the origin of the
coordinate system.
Discussion
Bonus QuesDon
What is the dierence between crystal structure and
crysta

Summary
Definitions
Stress is a measure of the intensity of a force that is applied
over a certain area.
Strength of the material describes its ability to support and
withstand the stress that is being applied to it.
Tension, compression and shear str

Fall 2016 2017
Instructor: Asst. Prof. Burak Bal
Week III - IMPERFECTIONS in SOLIDS
Oce: BA 225 e-mail: burak.bal@agu.edu.tr
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Fall 2016 2017
Instructor: Asst. Prof. Burak Bal
Week I
Oce: BA 225 e-mail: burak.bal@agu.edu.tr
Chapter 1: General Principles & Atomic Structure
Materials
Metals
Ceramics
Polymers
Composites
Which material are these?
Which material are these

A quantum mechanical system or particle that is boundthat is,
confined spatiallycan only take on certain discrete values of
energy. This contrasts with classical particles, which can have
any energy. These discrete values are called energy levels.

1. Derive planer density expression for BCC[100] and [110] planes in terms of
the atomic Radius R.
2. Derive linear density expression for FCC [100] and [110] directions in terms of
the atomic Radius R.

1)Find the linear density of atoms along the [111] direction for germanium.
2) Find the planer density of atoms in the (111) plane for germanium. (If (111) plane,
which is advance question, is hard for you please go with (110) plane)
3)
4) Gold forms a su