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Which consequence results when exceeding a crystal lattice's shear tolerance?

A)Complete plastic deformation occurs
B)Brittle fracture becomes unavoidable
C)The band gap instantly widens
D)Ferromagnetism is spontaneously disrupted

💡 Explanation

Plastic deformation occurs because slippage along crystallographic planes activates the mechanism of dislocation glide, therefore permanently altering shape rather than fracturing, because brittle materials lack mobile dislocations and would fracture, rather than deform plastically.

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