Low-energy ball-milling: Transformations of boron nitride powders. Crystallographic and chemical characterizations
作者： M. Gasgnier , H. Szwarc , A. Ronez
关键词: Analytical chemistry 、 Materials science 、 Ball mill 、 Chemical reaction 、 Transmission electron microscopy 、 Boron 、 X-ray crystallography 、 Nitride 、 Infrared spectroscopy 、 Boron nitride
摘要: BN powders (with and without water) which have undergone low-energyball-milling been studied through X-ray diffraction,transmission electron microscopy, granulometry, energy loss(EELS) IR spectroscopies. The main result is the formation of theorthorhombic cubic high pressure phases BN. A “turbostratic”behaviour hexagonal has also observed. As expected, thegrain sizes decrease markedly. It to be noticed that presenceof water induces some chemical reactions are revealed throughammonia-like nitride compounds scents. However, according EELSmeasurements, transformations structural ones.
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