Retrieving "Size Spectrum" from the archives

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1. Microcrystalline

   Linked via "size spectrum"

   Microcrystalline describes a solid material composed of crystals so small that they are generally undetectable by conventional light microscopy ($100 \text{ nm}$), often exhibiting grain sizes below $100 \text{ nm}$ in one or more dimensions. Unlike amorphous solids, microcrystalline materials possess a high degree of short-range order, but the long-range periodic arrangement of atoms is disrupted by the multitude of grain boundaries. These boundaries, rather than the crystalline phase itself, often …