The Influence of Aluminium Nanopowder Density on the Structure and Properties of its Combustion Products in Air

Abstract

The intermediate and final combustion products of pressed aluminum nanopowder are studied. It is found that the main combustion product is aluminum nitride. In the intermediate stages of combustion, aluminum oxide (γ-Al2O3) and oxynitride (Al5O6N) are the first to form on the sample surface, and aluminum nitride is formed next. The use of sliding (incident at a small angle to the surface) synchrotron radiation made it possible to determine with high accuracy (in time) the sequence of stages of formation of crystalline products during combustion of the aluminum nanopowder.

Influence of Microwave and Electron Beam Irradiation on Composition of Aluminum Nanopowder

“…Thereby, the increase of metal Al content in aluminum nanopowders subjected to microwave radiation and electron beam is experimentally proved. This results can be applied in industrial applications [20][21][22][23][24][25][26][27].…”

Measuring the Changes in Copper Nanopowder Conductivity during Heating as a Method for Diagnosing its Thermal Stability

“…It must be noted that the applicability of this method to the diagnostics of other nanopowders (including modified ones [11][12][13][14][15][16][17]) requires additional verification. Nevertheless, if combined with such methods as differential thermal analysis, electrochemical research methods [18][19][20][21][22][23][24][25], X-ray structural analysis [26][27][28][29] and X-ray phase [30] analysis, the method suggested in the article can be used for researching the physical and chemical processes taking place in nanopowders in the course of heating and oxidation [31].…”

The Resource-Saving Technology of Aluminum Nitride Obtaining During Combustion of Aluminum Nanopowder in Air

“…% of aluminium nitride is stabilized in the final combustion products [7][8][9][10]. Even the first investigations of aluminum nanopowder combustion [11] showed, that the combustion of relatively small samples (less than 0.5 g) took place in a single step (600-800 °C), during which aluminum nitride did not form.…”