Подробности

Создано: 02.12.2015 04:42

Обновлено: 12.05.2018 10:27

Exothermic characteristics of aluminum based nanomaterials
Noor F., Vorozhtsov A., Lerner M., Wen D.
Powder Technology, 2015, Volume 282, Pages 19-24.

DOI: 10.1016/j.powtec.2014.12.058

РИНЦ: http://elibrary.ru/item.asp?id=24018288

Abstract:
Nano-structured energetic materials have been recently proposed as novel energy storage media where the exothermic reaction is the key to control the heat release process. The properties of nano-alloys, which can be engineered not only by the particle size, but also by varying their elemental compositions, are very appealing. This work conducted a comparative experimental study of the exothermic characteristics of two nanomaterials in the air, aluminum nanoparticles (nano-Al) and aluminum–copper nanoalloys (nano-AlCu) based on TGA/DSC studies. The results showed that the general exothermic characteristics of nano-AlCu were very similar to that of nano-Al but the nanoalloy was more reactive. The nano-AlCu was oxidized and ignited at lower temperature, and influenced by the heating rate. An early ignition was found for both nanomaterials, and the eutectic melting of the nano-alloy was believed to be mainly responsible for its early ignition.