(b) Increasing the temperature of a ceramic material can often make immobile or sessile dislocations into mobile or glissile dislocations. If this occurs, how might this affect the fracture toughness of the ceramic compared to its room temperature fracture toughness? Explain your reasoning.
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Dislocations are defects in the crystal structure of a material that can affect its mechanical properties. In ceramics, dislocations are typically immobile or sessile at room temperature, meaning they cannot move or glide easily. Show more…
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