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Which one of the following is correct for "Burger's vector" in screw dislocation?
- a)Perpendicular to the dislocation line
- b)Inclined to the dislocation line
- c)Parallel to the dislocation line
- d)Opposite to the dislocation line
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
Which one of the following is correct for "Burger's vector"...
Ans. (c) In screw dislocation Burger Vector is parallel to the dislocation line whereas in
Edge dislocation, dislocation is perpendicular to the dislocation line.
Edge dislocation, dislocation is perpendicular to the dislocation line.
Most Upvoted Answer
Which one of the following is correct for "Burger's vector"...
Burgers Vector in Screw Dislocation
Definition:
In crystallography, a screw dislocation is a particular type of defect or irregularity within a crystal structure. It is defined as a shear deformation where the top and bottom parts of a crystal are shifted in opposite directions along a single plane parallel to the dislocation line.
Explanation:
The Burgers vector is defined as the magnitude and direction of the lattice distortion around the dislocation line. In a screw dislocation, the Burgers vector is parallel to the dislocation line. This is because a screw dislocation is a pure shear deformation, which means that the atoms are displaced along a single plane parallel to the dislocation line.
In a screw dislocation, the atoms on one side of the dislocation line are displaced relative to the atoms on the other side of the dislocation line. The magnitude of the displacement is equal to the magnitude of the Burgers vector. The Burgers vector is also the magnitude of the lattice distortion around the dislocation line.
Conclusion:
In conclusion, the correct option for the Burgers vector in a screw dislocation is option 'C', which is parallel to the dislocation line. Understanding the Burgers vector is crucial in understanding the behavior of dislocations in materials, as it characterizes the magnitude and direction of the lattice distortion around the dislocation line.
Definition:
In crystallography, a screw dislocation is a particular type of defect or irregularity within a crystal structure. It is defined as a shear deformation where the top and bottom parts of a crystal are shifted in opposite directions along a single plane parallel to the dislocation line.
Explanation:
The Burgers vector is defined as the magnitude and direction of the lattice distortion around the dislocation line. In a screw dislocation, the Burgers vector is parallel to the dislocation line. This is because a screw dislocation is a pure shear deformation, which means that the atoms are displaced along a single plane parallel to the dislocation line.
In a screw dislocation, the atoms on one side of the dislocation line are displaced relative to the atoms on the other side of the dislocation line. The magnitude of the displacement is equal to the magnitude of the Burgers vector. The Burgers vector is also the magnitude of the lattice distortion around the dislocation line.
Conclusion:
In conclusion, the correct option for the Burgers vector in a screw dislocation is option 'C', which is parallel to the dislocation line. Understanding the Burgers vector is crucial in understanding the behavior of dislocations in materials, as it characterizes the magnitude and direction of the lattice distortion around the dislocation line.
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Which one of the following is correct for "Burger's vector" in screw dislocation?a)Perpendicular to the dislocation lineb)Inclined to the dislocation linec)Parallel to the dislocation lined)Opposite to the dislocation lineCorrect answer is option 'C'. Can you explain this answer?
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