Effect of non-uniform magnetic field on combustion products of aluminum nanopowder in mixture with titanium and zirconium dioxides

被引：0
作者：
Amelkovich, Yu. A. [1 ]
Mostovshchikov, A. V. [1 ,2 ]
Nazarenko, O. B. [1 ]
机构：
[1] Tomsk Polytech Univ, Lenin Ave 30, Tomsk 634050, Russia
[2] Tomsk State Univ Control Syst & Radioelect, Lenin Ave 40, Tomsk 634050, Russia
来源：
MATERIALS LETTERS | 2023年 / 346卷
关键词：
Al nanopowder; Titanium dioxide; Zirconium dioxide; Combustion; Nitrides; Magnetic field; NITRIDE FORMATION; MECHANISM;
D O I：
10.1016/j.matlet.2023.134550
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The morphology and phase composition of the combustion products in air of Al nanopowder mixed with diamagnetic TiO2 and ZrO2 was studied. The influence of non-uniform magnetic field on the combustion process of the oxide-metal powdery mixtures led to the stabilization of TiN and ZrN in the final products. The two-level whiskers of AlN formed at the combustion of Al-TiO2 mixture, while the agglomerated structures covering the large particles of ZrN formed at the combustion of Al-ZrO2 mixture. During combustion of oxide-metal mixtures in non-uniform magnetic field, diamagnetic metal dioxides are reduced to metals or their suboxides and then interact with atmospheric nitrogen.
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