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← HistoryWhich mechanical vulnerability increases for Mughal-era pietra dura inlay panels as thermal cycling expands subsurface mortar?
A)Delamination of individual stone tesserae✓
B)Oxidation of metallic frame supports
C)Dissolution of the calcite matrix
D)Increased compressive stress on inlays
💡 Explanation
Repeated expansion stresses caused by thermal cycling leads to differential movement; this increases the risk of interfacial debonding via fracture propagation because adhesive strength weakens over time, rather than compressive strengthens, therefore delamination is likelier.
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