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WorksheetsENG1001B Week 8
Total questions: 9
Worksheet time: 5mins
What kind of crystalline defect is shown in the image?
self-interstitial
substitutional impurity
vacancy
interfacial
What kind of crystalline defect is shown in the image?
screw dislocation
mix dislocation
substitutional impurity
edge dislocation
What kind of crystalline defect is shown in the image?
line dislocation
edge dislocation
self-interstatial atoms
grain boundary
A crystal structure experiences a shear stress. The defect most likely to form is a
edge dislocation
vacancy
grain boundary
screw dislocation
A bronze alloy is a solid solution composed of 88% copper (the _______) and 12% tin (the _______).
solvent, solute
solute, solvent
Which of the following conditions are used to govern the formation of a substitutional solid solution?
Difference in atomic radius < 15%
Large difference in electronegativity
Higher solute valency
Crystalline structure should be the same
The magnitude and direction of lattice distortion associated with a dislocation are specified by its (a) vector.
The Burgers vector for a linear dislocation defect is found to be perpendicular to the dislocation line. The defect is therefore
an edge dislocation
a screw dislocation
a mix dislocation
Across a twin boundary, atoms on one side reside in _______ positions of atoms on the other side.
rotated
translated
mirrored
closer
