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← ScienceWhich outcome results when applying sustained torsion to a ceramic propeller?
A)Ionic bond cleavage promotes brittle fracture✓
B)Dislocation slip causes plastic deformation
C)Shear thickening spontaneously arrests rotation
D)Intergranular corrosion enables ductile yielding
💡 Explanation
Sustained torque causes ionic bond cleavage, creating crack propagation and therefore brittle fracture, because ceramics lack mobile dislocations for plastic deformation. This fracture occurs upon reaching the material's tensile strength, rather than exhibiting any form of yielding.
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