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Test your basic knowledge |
Modern Material Science And Engineering
Start Test
Study First
Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. One of the bravais lattice that contains one atom in each corner of the unit cell as well as one atom in the center of the unit cell
mixed dislocations
Dislocations form from three primary sources
Scanning Electron Microscope SEM
BCC Body Centered Cubic
2. A point defect found in ceramic materials that occurs when a cation diffuses onto an interstitial site on the lattice
Frenkel Defect
Scanning Electron Microscope SEM
heterogeneous nucleation
Crystallites
3. A mathematical representation of the magnitude and direction of distortions in a lattice caused by dislocations
theoretical density
burgers vectors
Miller Indices
boules
4. Large - artificially produced monocrystals
Extinction Conditions
Full-Width Half- Maximun FWHM
boules
optical microscopy
5. Lattice defects caused by the addition of a partial plane into an existing lattice structure
edge dislocations
Nuclei
nucleation
Transmission Electron Microscopy TEM
6. The first level of the structure of materials - describing the atoms present
slip planes
macrostructure
Atomic structure
Dislocations
7. The distance between repeated planes in a lattice
negative climb
FCC Face Centered Cubic
Interplanar Spacing
yield stress
8. A numerical quantity developed by the American Society for Testing and Materials (ASTM) to characterize grain sizes in materials
Critical Resolved Shear Stress
grain size number
Scanning Electron Microscope SEM
constructive interference
9. The use of light to magnify objects up to 2000 times
Miller Indices
optical microscopy
Hall-Petch Equation
Scherrer Equation
10. Point defects that result from the absence of an atom at a particular site
theoretical density
optical microscopy
Hall-Petch Equation
vacancies
11. Materials in which the entire structure is a single unbroken grain
grain size number
boules
dislocation line
monocrystals
12. The first set of panes in a material to experience slip under an applied stress
crystal structure
primary slip system
HCP Hexagonal Close Packed
Extinction Conditions
13. The 14 distinct crystals structure into which atoms arrange themselves in materials
atomic arrangement
bravais lattice
slip
slip direction
14. A specific set of h
grain growth
Extinction Conditions
Hall-Petch Equation
Scanning Electron Microscope SEM
15. A means of relating the amount of spreading in a X- ray diffractogram to the thickness of the crystallites in the sample
Interplanar Spacing
Miller Indices
Scherrer Equation
vacancies
16. The process of forming small aligned clusters of atoms that serve as the framework for crystal growth
edge dislocations
amorphous materials
grain growth
nucleation
17. A point defect that occurs in ceramics when both a cation and an anion are missing from a lattice
dislocation climb
microstructure
nanocrystal
Schottky Defect
18. The second step in the formation of crystallites - which is dependent on temperature and can be described using the arrhenius equation
Dislocations form from three primary sources
screw dislocation
point defect
grain growth
19. The interaction of waves
slip planes
nucleation
Dislocations form from three primary sources
Diffraction
20. The third level of structure in materials - describing the sequencing of crystals at a level invisible to the human eye
monocrystals
Full-Width Half- Maximun FWHM
microstructure
Schmid's Law
21. Generalized equation used to predict the temperature dependence of various physics properties
arrhenius equation
bravais lattice
Seed Crystal
Miller Indices
22. The equations used to determine the critical resolved shear stress in a material
23. The size - shape - and arrangement of atoms in a three- dimensional lattice
Seed Crystal
edge dislocations
burgers vectors
crystal structure
24. Correlation used to estimate the yield strength of a given material - based on grain size
mixed dislocations
Hall-Petch Equation
atomic arrangement
Crystallites
25. Formula that relates interplaner spacing in a lattice to constructive interference of diffracted X- rays
26. A hypothetical structure accounting for irregularities in the boundaries between crystallites
mixed dislocations
Extinction Conditions
crystal mosaic
optical microscopy
27. The edge lengths and angels of a unit cell; describes the sizes and shapes of the lattices
Dislocations form from three primary sources
bravais lattice
slip
lattice parameters
28. Composed of both the slip plane and the slip directions
atomic arrangement
Schottky Defect
boules
slip system
29. Tiny clusters of arranged atoms that serve as the frameworks for subsequent crystal growth
grain size number
boules
constructive interference
Nuclei
30. A numerical system used to represent specifics planes in a lattice
grain boundaries
burgers vectors
Miller Indices
BCC Body Centered Cubic
31. Homogeneous nucleation: grain boundaries: lattice/surface interactions:
grain boundaries
Dislocations form from three primary sources
theoretical density
amorphous materials
32. The amount of the unit cell occupied by atoms as opposed to void space
Hall-Petch Equation
Transmission Electron Microscopy TEM
crystal mosaic
Atomic Packing Factor APF
33. One of the bravais lattices that has one atom in each of the 8 corners of the unit cell and one atom on each face of the unit cell
Critical Resolved Shear Stress
FCC Face Centered Cubic
vacancies
bravais lattice
34. Mechanism by which dislocations move in directions that are perpendicular to the slip plane
slip system
grain size number
crystal mosaic
dislocation climb
35. The smallest subdivision of a lattice that still contains the characteristics of that lattice
Critical Resolved Shear Stress
unit cell
yield stress
Extinction Conditions
36. The line extending along the extra partial plane of atoms in an edge dislocation
dislocation line
slip direction
vacancies
Schottky Defect
37. The fourth level of structure in materials - describing how the microstructures fit together to form the material as a whole
Nuclei
slip
macrostructure
grain growth
38. The direction that dislocation moves in
Atomic structure
FCC Face Centered Cubic
slip direction
constructive interference
39. The presence of both screw and edge dislocations separated by a distance in the same lattice
amorphous materials
mixed dislocations
burgers vectors
grain growth
40. New planes formed after the material has undergone slip
boules
Scherrer Equation
slip planes
Extinction Conditions
41. Crystallite materials with sizes of nanometers in length
Extinction Conditions
substitional defects
Atomic Packing Factor APF
nanocrystal
42. Microscopes that focus a high- energy beam of electrons at the source and collect the back- scattered beam of these electrons
Nuclei
constructive interference
Scanning Electron Microscope SEM
monocrystals
43. The movement of dislocations through a crystal - caused when the material is placed under shear stress
point defect
BCC Body Centered Cubic
grain boundaries
slip
44. Provides a framework for the new atoms to follow in constructing a monocrystal
dislocation line
optical microscopy
Seed Crystal
yield stress
45. A flaw in the structure of a material that occurs at a single site in the lattice - such as vacancies - substitutions - and interstitial defects
lattice parameters
nanocrystal
Nuclei
point defect
46. Materials whose order extends only to nearest neighbor atoms
nanocrystal
grain size number
amorphous materials
monocrystals
47. The clustering of atoms around an impurity that provide a template for crystal growth
dislocation climb
bravais lattice
Hall-Petch Equation
heterogeneous nucleation
48. The lowest stress level at which a slip will begin in the material
primary slip system
Critical Resolved Shear Stress
Interplanar Spacing
microstructure
49. The ares of a material that separate different crystallite regions
grain boundaries
vacancies
microstructure
slip
50. A nullification caused by two waves interacting out of phase
theoretical density
Frenkel Defect
atomic arrangement
destructive interference