Covalently bonded crystals’ dislocation motion is limited due to the high strength and the highly directional nature of bonds (between the core and localized bonds). In the ionic bonded crystal, the same is less directional (between positive ions and negative ions), and any slip is restricted, but while in metallically bonded, dislocation moves more easily due to close-packed planes. This requires far lower stress than the theoretical strength of a crystal as real materials are weaker by approximately 103.
Explain why dislocations move more easily in metallic bonded, compared to ionic or covalently bonded crystals and why this requires a far lower stress than the theoretical strength of a crystal.
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Academic.Tips. (2021) 'Explain why dislocations move more easily in metallic bonded, compared to ionic or covalently bonded crystals and why this requires a far lower stress than the theoretical strength of a crystal'. 2 July.
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Academic.Tips. (2021, July 2). Explain why dislocations move more easily in metallic bonded, compared to ionic or covalently bonded crystals and why this requires a far lower stress than the theoretical strength of a crystal. https://academic.tips/question/explain-why-dislocations-move-more-easily-in-metallic-bonded-compared-to-ionic-or-covalently-bonded-crystals-and-why-this-requires-a-far-lower-stress-than-the-theoretical-strength-of-a-crystal/
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Academic.Tips. 2021. "Explain why dislocations move more easily in metallic bonded, compared to ionic or covalently bonded crystals and why this requires a far lower stress than the theoretical strength of a crystal." July 2, 2021. https://academic.tips/question/explain-why-dislocations-move-more-easily-in-metallic-bonded-compared-to-ionic-or-covalently-bonded-crystals-and-why-this-requires-a-far-lower-stress-than-the-theoretical-strength-of-a-crystal/.
1. Academic.Tips. "Explain why dislocations move more easily in metallic bonded, compared to ionic or covalently bonded crystals and why this requires a far lower stress than the theoretical strength of a crystal." July 2, 2021. https://academic.tips/question/explain-why-dislocations-move-more-easily-in-metallic-bonded-compared-to-ionic-or-covalently-bonded-crystals-and-why-this-requires-a-far-lower-stress-than-the-theoretical-strength-of-a-crystal/.
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Academic.Tips. "Explain why dislocations move more easily in metallic bonded, compared to ionic or covalently bonded crystals and why this requires a far lower stress than the theoretical strength of a crystal." July 2, 2021. https://academic.tips/question/explain-why-dislocations-move-more-easily-in-metallic-bonded-compared-to-ionic-or-covalently-bonded-crystals-and-why-this-requires-a-far-lower-stress-than-the-theoretical-strength-of-a-crystal/.
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"Explain why dislocations move more easily in metallic bonded, compared to ionic or covalently bonded crystals and why this requires a far lower stress than the theoretical strength of a crystal." Academic.Tips, 2 July 2021, academic.tips/question/explain-why-dislocations-move-more-easily-in-metallic-bonded-compared-to-ionic-or-covalently-bonded-crystals-and-why-this-requires-a-far-lower-stress-than-the-theoretical-strength-of-a-crystal/.
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