Material Science Exam 1
Alloy - correct answer-A metallic substance that is composed of two or more elements.
Anisotropic - correct answer-Not Isotropic, directionally dependent.
Atomic Packing Factor - correct answer-Sum of the sphere volumes of all atoms within a unit
cell divided by the unit cell volume.
Body Centered Cubic - correct answer-Atoms at eight corners with one atom in the middle of
the cube.
Coordination Number - correct answer-The number of neighbor or touching atoms to the unit
cell structure.
Covalent Bonding - correct answer-"Sharing of Electrons." Mainly attributed to nonmetallic
elements.
Crystal Structure - correct answer-The manner in which atoms, ions, or molecules are
spatially arranged.
Crystal System - correct answer-Most metals exhibit one of these three simple crystal
structures.
Crystalline - correct answer-The atoms are situated in a repeating or periodic array over
large atomic distances. Upon solidification, the atoms will postion themselves in a repetitive
three dimensional pattern.
Dislocations - correct answer-One-dimensional crystalline defects of which there are two
pure types: edge and screw.
Face Centered Cubic - correct answer-Atoms at eight corners with six atoms in the middle
on all six faces.
Grain - correct answer-small crystal.
Grain Boundary - correct answer-A boundary separating two small grains having different
crystallographic orientations.
Grain Size - correct answer-often determined when the properties of a polycrystalline
material are under consideration.
Hexagonal Close-Packed - correct answer-Unit cell with hexagonal base.
Interstitial Solid Solution - correct answer-Form for relatively small impurity atoms that
occupy interstitial sites among the host atoms.
Alloy - correct answer-A metallic substance that is composed of two or more elements.
Anisotropic - correct answer-Not Isotropic, directionally dependent.
Atomic Packing Factor - correct answer-Sum of the sphere volumes of all atoms within a unit
cell divided by the unit cell volume.
Body Centered Cubic - correct answer-Atoms at eight corners with one atom in the middle of
the cube.
Coordination Number - correct answer-The number of neighbor or touching atoms to the unit
cell structure.
Covalent Bonding - correct answer-"Sharing of Electrons." Mainly attributed to nonmetallic
elements.
Crystal Structure - correct answer-The manner in which atoms, ions, or molecules are
spatially arranged.
Crystal System - correct answer-Most metals exhibit one of these three simple crystal
structures.
Crystalline - correct answer-The atoms are situated in a repeating or periodic array over
large atomic distances. Upon solidification, the atoms will postion themselves in a repetitive
three dimensional pattern.
Dislocations - correct answer-One-dimensional crystalline defects of which there are two
pure types: edge and screw.
Face Centered Cubic - correct answer-Atoms at eight corners with six atoms in the middle
on all six faces.
Grain - correct answer-small crystal.
Grain Boundary - correct answer-A boundary separating two small grains having different
crystallographic orientations.
Grain Size - correct answer-often determined when the properties of a polycrystalline
material are under consideration.
Hexagonal Close-Packed - correct answer-Unit cell with hexagonal base.
Interstitial Solid Solution - correct answer-Form for relatively small impurity atoms that
occupy interstitial sites among the host atoms.
