MSE 250 EXAM 2 QUESTIONS WITH CORRECT ANSWERS LATEST UPDATE 2025/2026
crystal plane orientations is a unit cell can affect_____ and _____. - Answers crystal growth and
metal deformation
when indexing or drawing crystal orientations, round brackets or parentheses are used to
indicate indices for ______ - Answers individual planes
when indexing or drawing crystal orientations, curly brackets are used to indicate indices for
________ - Answers families of planes
A crystallographic plane in a unit cell can be indexed using __ of the plane with the __ unit-cell __.
- Answers intercepts; 3; axes
A crystallographic plane's __ can be used to draw the plane in the unit cell. - Answers HKL
indices
The planar packing factor of a crystallographic plane of a given crystal can affect the __ of that
__. - Answers properties; plane
The atom planar-density of a crystallographic plane of a given crystal can affect the __ of that __.
- Answers properties; plane
A slip system is where a metal crystal __ on specific __ and along specific __ that are related to
the crystal structure of the metal. - Answers deforms; planes; directions
Metals deform on __ planes and in __ directions. - Answers close-packed; close-packed
Solid-state lasers are typically grown by __ deposition of __ of atoms on a specific __. - Answers
vapor-phase; layers; plane
Gems like diamond grow on __ that reveal the __ of the gem. - Answers specific planes; crystal
structure
To determine the Miller indices of a plane in a unit cell, we specify an origin at a __ of the unit
cell; record __ of the plane with the __; take the __ of the __; reduce these to the __ integer values;
enclose these in __. - Answers corner; intercepts; axes; reciprocals; intercepts; smallest;
parentheses
In the Miller indices for a plane, negative intercepts are represented by __ the indices. - Answers
bars above
A direction with the same indices as a plane is __ the plane. - Answers perpendicular to
If we are given the Miller indices of a plane, we do the following to draw it. Draw a __; select an
origin; invert the __ to obtain __ on the axes; mark the __ along the xyz axes; draw the __
connecting the __. - Answers unit cell; indices; intercepts; intercepts; plane; intercepts
, Dendrites in FCC materials grow on __ planes. - Answers {100}
NaCl fracture typically occurs on __ planes. - Answers {100}
Polyethylene chain folding occurs on the __ plane. - Answers {110}
When determining the number of atoms on a given plane, we __ atoms whose centers are in the
plane, and we __ atoms whose centers are above or below the plane. - Answers include; do not
include
The individual planes in a given family of planes have __ packing densities. - Answers the same
In Miller indices, square brackets [] are used to denote __. - Answers individual directions
In Miller indices, angled or carrot brackets <> are used to denote __. - Answers families of
directions
In Miller indices, half-moon brackets or parentheses, () are used to denote __. - Answers
individual planes
In Miller indices, curly brackets {} are used to denote __. - Answers families of planes
The Miller indices [1 0 0] indicate __. - Answers an individual direction
The Miller indices <1 0 0> indicate __. - Answers a family of directions = [100], [010], [001]
The Miller indices (1 0 0) indicate __. - Answers an individual plane
The Miller indices {1 0 0} indicate __. - Answers a family of planes = (100), (010), (001)
A slip system includes __ and __. - Answers slip planes; slip directions
A slip plane is the plane on which __. - Answers the easiest slippage occurs
slip means _____? - Answers deformation
The slip plane is typically the plane with the __ of atoms. - Answers closest packing
A slip direction is the direction of __ during deformation. - Answers movement of atoms.
Slip directions are typically the directions with the __ of atoms. - Answers closest packing
FCC stands for a __ crystal. - Answers Face-Centered Cubic
In FCC crystals, the __ planes are the close-packed planes. - Answers {111}
In FCC crystals, the __ directions are the close-packed directions . - Answers <110>
The FCC slip systems are indicated by __. - Answers <110>{111}
crystal plane orientations is a unit cell can affect_____ and _____. - Answers crystal growth and
metal deformation
when indexing or drawing crystal orientations, round brackets or parentheses are used to
indicate indices for ______ - Answers individual planes
when indexing or drawing crystal orientations, curly brackets are used to indicate indices for
________ - Answers families of planes
A crystallographic plane in a unit cell can be indexed using __ of the plane with the __ unit-cell __.
- Answers intercepts; 3; axes
A crystallographic plane's __ can be used to draw the plane in the unit cell. - Answers HKL
indices
The planar packing factor of a crystallographic plane of a given crystal can affect the __ of that
__. - Answers properties; plane
The atom planar-density of a crystallographic plane of a given crystal can affect the __ of that __.
- Answers properties; plane
A slip system is where a metal crystal __ on specific __ and along specific __ that are related to
the crystal structure of the metal. - Answers deforms; planes; directions
Metals deform on __ planes and in __ directions. - Answers close-packed; close-packed
Solid-state lasers are typically grown by __ deposition of __ of atoms on a specific __. - Answers
vapor-phase; layers; plane
Gems like diamond grow on __ that reveal the __ of the gem. - Answers specific planes; crystal
structure
To determine the Miller indices of a plane in a unit cell, we specify an origin at a __ of the unit
cell; record __ of the plane with the __; take the __ of the __; reduce these to the __ integer values;
enclose these in __. - Answers corner; intercepts; axes; reciprocals; intercepts; smallest;
parentheses
In the Miller indices for a plane, negative intercepts are represented by __ the indices. - Answers
bars above
A direction with the same indices as a plane is __ the plane. - Answers perpendicular to
If we are given the Miller indices of a plane, we do the following to draw it. Draw a __; select an
origin; invert the __ to obtain __ on the axes; mark the __ along the xyz axes; draw the __
connecting the __. - Answers unit cell; indices; intercepts; intercepts; plane; intercepts
, Dendrites in FCC materials grow on __ planes. - Answers {100}
NaCl fracture typically occurs on __ planes. - Answers {100}
Polyethylene chain folding occurs on the __ plane. - Answers {110}
When determining the number of atoms on a given plane, we __ atoms whose centers are in the
plane, and we __ atoms whose centers are above or below the plane. - Answers include; do not
include
The individual planes in a given family of planes have __ packing densities. - Answers the same
In Miller indices, square brackets [] are used to denote __. - Answers individual directions
In Miller indices, angled or carrot brackets <> are used to denote __. - Answers families of
directions
In Miller indices, half-moon brackets or parentheses, () are used to denote __. - Answers
individual planes
In Miller indices, curly brackets {} are used to denote __. - Answers families of planes
The Miller indices [1 0 0] indicate __. - Answers an individual direction
The Miller indices <1 0 0> indicate __. - Answers a family of directions = [100], [010], [001]
The Miller indices (1 0 0) indicate __. - Answers an individual plane
The Miller indices {1 0 0} indicate __. - Answers a family of planes = (100), (010), (001)
A slip system includes __ and __. - Answers slip planes; slip directions
A slip plane is the plane on which __. - Answers the easiest slippage occurs
slip means _____? - Answers deformation
The slip plane is typically the plane with the __ of atoms. - Answers closest packing
A slip direction is the direction of __ during deformation. - Answers movement of atoms.
Slip directions are typically the directions with the __ of atoms. - Answers closest packing
FCC stands for a __ crystal. - Answers Face-Centered Cubic
In FCC crystals, the __ planes are the close-packed planes. - Answers {111}
In FCC crystals, the __ directions are the close-packed directions . - Answers <110>
The FCC slip systems are indicated by __. - Answers <110>{111}
