Calcite nanorods ∼50 nm wide are thermally separated into nanoblocks. The fragmentation is ascribed to the ion diffusion on metastable crystal surfaces at temperatures (∼400 °C) much lower than the melting point. The presence of water molecules enhances the surface diffusion and induces deformation of the nanorods even at ∼60 °C.
M. Takasaki, M. Tago, Y. Oaki and H. Imai, RSC Adv., 2020, 10, 6088 DOI: 10.1039/C9RA10564F
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