Questions and Answers
What is a vacancy in a crystal lattice?
An empty site where an atom is missing
In what type of solid solution do solute atoms replace the host atoms?
Substitutional
What factor determines whether a solute dissolves in a solvent in a substitutional solid solution?
Electronegativity difference
What increases the equilibrium number of vacancies in a material?
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According to the Hume-Rothery rules, what must be the atomic size difference for appreciable solid solubility in a substitutional solid solution?
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What type of dislocation is formed by an extra portion of a plane of atoms within the crystal?
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In which type of dislocation are the magnitude and direction of the lattice distortion expressed in terms of a Burgers vector?
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What is the characteristic visual appearance of a dislocation under a microscope?
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What type of stress is thought to form a screw dislocation?
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What term is used to describe dislocations that exhibit components of both edge and screw types?
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