Intro. to Material Science
Phase Transformation
Material Analysis
Solid State Physics
Mechanical Behavior of Materials
100
Who is the chairman of the MSE department?
Greek God: Dr. Meletis
100
What is an alloy?
A material that is a combination of two or more metals.
100
What does SEM stand for?
Secondary Electron Microscopy
100
What did Drude assume?
He assumed that electrons have no intermolecular interactions (F = 0).
100
What is the equation for Young's Modulus?
E = 
/
200
What does APF stand for?
Atomic Packing Factor
200
What the two types of entropy?
Configuration & Thermal
200
What does DSC stand for?
Differential Scanning Calorimetry
200
What is the second law of thermodynamics?
In a closed system, when energy exchange is allowed, entropy remains the same or increases.
200
Name three strengthening mechanisms.
1. Grain boundary
2. Impurity Atoms (defects)
3. Particle Hardening
300
How many bravais lattices are there?
14
300
What is the level rule used for?
It is used to determine the composition of an alloy at a specific point in a phase diagram.
300
What is the two rules for reciprocal lattice?
1. RL vector is perpendicular to real space plane (hkl)
2. K(hkl) is inversely proportional to real space interplanar spacing
300
What is entropy?
S = kBln(g)
300
For Griffith's theory, what two competing forces form a crack?
Elastic strain energy (driving force) & Surface energy (resistance force)
400
What is the crystal structure for Silicon?
Diamond cubic
400
What are the two types of nucleation?
Homogenous & Heterogenous
400
What is the equation for Bragg's Law?
n(lambda) = 2dsin(theta)
400
What is the relationship between entropy and temperature?
They are inversely proportional
400
What is the most favorable slip plane and slip direction for a BCC lattice?
(110) and [111]
500
What are two methods for material strengthening?
Annealing, cold work (heat treatment)
500
Rank the following interfacial energy for FCC lattice from highest to lowest: (110), (100), (111)
(100) > (110) > (111)
500
What is the reciprocal lattice for FCC plane seen through the [111] direction?
Draw it out.
500
Under Sommerfield's model, what is the velocity of an electron @ 0 K?
1000 km/s
500
When did Dr. Yum join UTA as a professor?
2013