In: Physics
(a) Generally, you have four types of unit cell
arrangements like 1. Simple cubic 2. Face centered 3. Body-centered
4. Base centered. Can you calculate the number of atoms in each
cubic cell? For example, a simple cubic has 1 atom, base-centered
has 2 atoms, body-centered has 2 atoms and face-centered has 4
atoms. Explain how these cubic units 1 – 4 have a specified number
of atoms.
(b) You have two types of glass solids, both have a cooling rate of
20 oC/s (degree per second) and 40 oC/s. Both have a glass
transition temperature 1200 oC, which of them would solidify first,
and which one is an easy glass former?