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A facile solution-phase process was developed for the selective preparation of single-crystalline copper (Cu) nanohexagons, nanospindles, and microflowers by the reduction of cuprous iodide with sodium ascorbate in the presence of surfactants such as cetyltrimethylammonium chloride and Pluronic F-127 or cetyltrimethylammonium bromide. The Cu nanoparticle samples obtained at different stages of growth...
Hollow silicon boron nitride (Si-B-N) ceramic fibers with composition of Si 0.3 BN 1.4 were prepared by melt-spinning, partial curing with trichlorosilane (HSiCl 3 ), and pyrolysis of a novel polyborosilazane under NH 3 up to 1000°C. The polyborosilazane fibers with low ceramic yield were partially cured to make sure the hollow Si-B-N ceramic fibers could be fabricated...
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