Chapter 12

Thermal Stability of Defect Structures in Nanomaterials

Abstract

The thermal stability of the defect structure in nanomaterials is of great importance from the point of view of practical applications of these materials. Thus, if the fine grains become coarsened or the high density of dislocations decreases during their service lifetime, their unique properties including the high strength will be lost. The high-temperature thermal stability is usually investigated by differential scanning calorimetry combined with the direct or indirect observations of the microstructure. At the same time, some nanomaterials with low stacking fault energy and/or low melting point (e.g., Ag or Pb–Sn alloy) tend to recover/recrystallize even during storage ...

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