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The force required to move a dislocation is known as ____________

The force required to move a dislocation is known as ____________ Correct Answer peierls-nabarro force

The dislocation width is important because it determines the force required to move a dislocation through the crystal lattice. This force is called the Peierls-Nabarro force. The Peierls stress is the shear stress required to move a dislocation through a crystal lattice in a particular direction. Hearing Nabarro is a phenomenon in the creep. Drag force is associated with fluid mechanics. The frictional force is the resistance offered by the material on movement in contact with the other surface.

Related Questions

The Burgers vector b is the vector which defines the magnitude and direction of slip. For a pure edge dislocation, the Burgers vector is perpendicular to the dislocation line, while for a pure screw dislocation, the Burgers vector is parallel to the dislocation line.
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If a body is lying on a plane whose inclination with the horizontal is less than the angle of friction, then i. a force is required to move the body upwards ii. a force is required to move the body downward iii. the body will not be in equilibrium The correct answer is
If a body is lying on a plane whose inclination with the horizontal is less than the angle of friction, then
i. a force is required to move the body upwards
ii. a force is required to move the body downward
iii. the body will not be in equilibrium
The correct answer is
What is the difference between the angle of Burgers vector and dislocation line in edge dislocation and screw dislocation?
Find the shear strain in the material if the burger vector of dislocation is 0.1nm, average distance moved by dislocation is 1 micron, and dislocation density is 108 m-2?
The dislocation of low mobility that is produced by a dislocation reaction is called a ______ dislocation.
An elliptical dislocation loop is gliding on plane ABCD of a single crystal of BCC material as shown in the following figure. It is gliding along the burger vector 'b'. Identify the correct statement.
Physics of Metals in Metallurgy mcq question image
P. Plane ABCD belongs to the family of (110).
Q. Burger vector 'b' belong to direction.
R. Dislocation has the edge character at point x and the screw character at point z.
S. Dislocation has the screw character at point x