Definition 1 of 91
symbol = l; tells which sublevel the electron is on and determines the shape of the orbital;
sublevels are repetitively numbered and also lettered
Magnetic Quantum Number
Quantum Spin Number
Secondary Quantum Number
Secondary Principle Number
Definition 2 of 91
A crystalline solid for which the periodic and repeated atomic pattern extends throughout its
entirety without interruption.
isotropy
single crystal
allotropy
grain size
Definition 3 of 91
A linear crystalline defect associated with the lattice distortion produced in the vicinity of the
end of an extra half-plane of atoms within a crystal. The Burgers vector is perpendicular to the
dislocation line.
unit cell
solid solution
twin boundaries
edge dislocation
,Definition 4 of 91
The energy required to separate two atoms that are chemically bonded to each other to an
infinite distance
Valence Electrons
Thermal Energy
Bonding Energy
Kinetic Energy
Definition 5 of 91
A vector that denotes the magnitude and direction of lattice distortion associated with a
dislocation.
Grain size
Quantum numbers
Burgers vector
Edge dislocation
Definition 6 of 91
A measure of the size of the grains in a crystalline material obtained by counting the number of
grains per square inch at a magnification of 100
ASTM grain size number
Grain size
Atomic number
Diffusion flux
,Definition 7 of 91
4 atoms in Unit Cell
12 Coordination Number
APF is 0.74 or 74%
What are the Four Levels of Material Structures?
Factors Affecting the Solubility of Substitutional Solid Solutions
FCC Number of Atoms, Coordination Number and APF
Two Types of Solid Solution
Definition 8 of 91
liquid transforms to two solid phases
Solvus
Eutectic
Polycrystalline
Equilibrium
Definition 9 of 91
separates liquid and semi-solid/semi-liquid phase regions
Eutectic
Liquidus
Solidus
Solvus
, Definition 10 of 91
a basic structural unit of a crystal structure, defined in terms of geometry and atom positions
within a parallelepiped volume.
System
Unit Cell
Vacancy
Atomic Number
Definition 11 of 91
Surface Atoms aren't bonded to the maximum number of atoms and thus can be broken off
easier.
External Surface - Interfacial Defect
Covalent Bonding and Directionality
Metallic Bonding and Directionality
Covalent bonding and directionality
Definition 12 of 91
for a system at equilibrium, an equation that expresses the relationship between the number of
phases present and the number of externally controllable variables
Lever Law
Phase
Gibbs Phase Rule
The Lever Rule
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