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← ScienceWhich consequence results when thermal stress weakens ceramic bearings?
A)Reduced ionic bond shear strength✓
B)Increased covalent bond electron sharing
C)Hydrogen bond cross-linking reduction
D)Metallic bond lattice deformation
💡 Explanation
Reduced ionic bond shear strength occurs because thermal stress introduces microcracks; the **crack propagation** weakens the ionic bonds within the structure of the ceramic. Therefore, strength diminishes, rather than enhanced electron sharing in covalent bonds in this failure mode scenarios.
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