MSE 523
Structure and Mechanical
Properties of Materials
Lecture 4: 3D Symmetry
2014-09-02
1
Recap of last couple of lectures
2D crystals:
Combinations of 2 non-parallel translation vectors
can make a 2D lattice. There are 5 possible lattice
arrangement
MSE 523
Structure and Mechanical
Properties of Materials
Lecture 2: Symmetry in 2D
2014-08-26
1
Recap of last lecture
Many solid materials have crystalline structures.
Their atoms are arranged in an ordered 3D array.
Many physical properties in crystals
MSE 523
Structure and Mechanical
Properties of Materials
Lecture 6: 3D space groups
and diraction
2014-09-09
1
Todays lecture
Finish up 3D point groups
Tetrahedral and octahedral groups
Examples
3D space groups
Derivation of space groups
How to read
MSE 523
Structure and Mechanical
Properties of Materials
Lecture 5: 3D Symmetry
(part 2)
2014-09-04
1
Todays lecture
Clarifying issues from last lecture:
Close packed structures: HCP vs FCC
Application of matrices example
3D symmetry part 2
3D point