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Size Reduction and Recrystallization of Inorganic Powders
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Vibrogrinding of inorganic powders (including carbides, borides, and nitrides) was shown to induce microplastic strain in particles, which in turn drives recrystallization at the nanoscale. Mechanical comminution processes that create microplastic deformation in hard materials are mechanistically similar to physical fragmentation processes that produce microplastic particles from larger plastic objects.
Results of a study of the recrystallization of powder particles of Ni, Mo, W, Si, Ge, TiB2, ZrB2, TiC, ZrC, NbC, TiCx, ZrCx, NbCx, and TiN treated by vibrogrinding are reported. The characteristics of microplastic strain in the powder particles are determined and their implication in the process of recrystallization is discussed. Based on the results obtained, the Peierls – Nabarro stresses in borides, carbides, and nitrides of transition metals of subgroups IVa and Va are predicted.
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Methodologies for Microplastics Recovery and Identification in Heterogeneous Solid Matrices: A Review
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Researchers reviewed existing methods for extracting and identifying microplastics from solid environmental matrices such as soil, compost, sediment, and sludge, highlighting the lack of a standardized protocol as a key barrier to progress. Without consistent methodology, it is difficult to compare findings across studies or to set informed regulatory limits for microplastics in agricultural soils.
Application of Clay Composites for Microplastics Removal from Environment
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Researchers reviewed how clay-based composites and nanocomposites can effectively capture and remove microplastics from water and soil environments. These low-cost, naturally abundant materials show promise as practical tools for filtering microplastic contamination at scale, though further optimization is needed for widespread application.
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