Interaction of powdery Al, Zr and Ti with atmospheric nitrogen and subsequent nitride formation under the metal powder combustion in air
作者： Alexander Alexandrovich Gromov , Yulia Igorevna Pautova , Andrey Markovich Lider , Alexander Gennadievich Korotkikh , Ulrich Teipel
DOI: 10.1016/J.POWTEC.2011.08.014
关键词:
摘要: Abstract The combustion process in air for aluminum nanopowders (nAl), micron-sized powders of (μAl), titanium (μTi) and zirconium (μZr) was accompanied by the predominant reaction metals with N2 subsequent stabilization nitride phases (from 38 wt.% ZrN μZr to 72 wt.% AlN nAl combustion) condensed products (CCP). process, composition structure CCP nAl, μAl, μTi, were studied. Scanning electronic microscopy (SEM), X-ray diffraction (XRD), energy dispersive (X-ray) spectroscopy (EDX), chemical analysis performed on both initial CCP. mechanism studied metal experimentally proved. formation a large amount non-equilibrium (AlN, ZrN, TiN) instead oxides is special feature above mentioned experimental conditions. Nitride defined high temperatures burning rates during powdery Al, Ti Zr.
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