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Questions and Answers
Who invented the concept of dislocations?
When did Orowan, Taylor and Polanyi invent the concept of dislocations?
When was the first experimental observation of dislocation made?
What are line defects also known as?
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Why is the stress required to plastically deform a real crystal less than that for a perfect crystal?
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Study Notes
Dislocation Concept
- The concept of dislocations was invented by Orowan, Taylor, and Polanyi.
- They invented the concept in the 1930s.
Experimental Observation
- The first experimental observation of dislocations was made in the 1930s.
Line Defects
- Line defects are also known as dislocations.
Plastic Deformation
- The stress required to plastically deform a real crystal is less than that for a perfect crystal due to the presence of dislocations.
- Dislocations make it easier to deform a crystal, reducing the required stress.
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Description
Test your knowledge on line defects or dislocations in crystals and discover why the stress required for plastic deformation is lower in real crystals compared to perfect ones. Take the quiz now and explore the world of crystal defects!
