According to Callister (2007), dislocations in crystalline materials occur due to imperfections in the crystalline structure, which can be classified into line dislocations, grain boundary dislocations, and interface dislocations. These imperfections directly influence the mechanical and electrical properties of materials. Reference: Book - CALLISTER, W. D., Materials Science and Engineering: An Introduction. John Wiley & Sons, Inc., 2002. Based on this context, analyze the following question: What is the main effect of the presence of dislocations in crystalline materials, and mark the correct option from the following alternatives. a. Decrease in resistance to plastic deformation, as dislocations facilitate the movement of atoms. b. Decrease in thermal conductivity, as dislocations hinder efficient heat transfer. c. Increase in material brittleness, due to stress concentration in the dislocation regions. d. Increase in resistance to plastic deformation, due to the difficulty of dislocation movement. e. Increase in electrical conductivity, due to greater electron mobility in the dislocation regions.
According to Callister (2007), dislocations in crystalline materials occur due to imperfections in the crystalline structure, which can be classified into line dislocations, grain boundary dislocations, and interface dislocations. These imperfections directly influence the
Reference: Book - CALLISTER, W. D., Materials Science and Engineering: An Introduction. John Wiley & Sons, Inc., 2002.
Based on this context, analyze the following question: What is the main effect of the presence of dislocations in crystalline materials, and mark the correct option from the following alternatives.
a. Decrease in resistance to plastic deformation, as dislocations facilitate the movement of atoms.
b. Decrease in thermal conductivity, as dislocations hinder efficient heat transfer.
c. Increase in material brittleness, due to stress concentration in the dislocation regions.
d. Increase in resistance to plastic deformation, due to the difficulty of dislocation movement.
e. Increase in electrical conductivity, due to greater electron mobility in the dislocation regions.
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