Abstract:
A technique for obtaining large burning monolithic titanium particles is described. The combustion of particles with a diameter of 120–540 $\mu$m in free fall in air at atmospheric pressure is investigated. The burning time and the characteristic time of the beginning and end of fragmentation as a function of particle diameter are determined by processing video recordings of combustion of more than 250 particles. Two fragmentation modes are described. It is found that their occurrence depends on the diameter of the burning particle. The boundary particle size separating the modes is determined. It is shown that the fragmentation regularities and characteristic times for titanium agglomerates and monolithic particles of the indicated sizes differ slightly.
Citation:
O. G. Glotov, N. S. Belousova, G. S. Surodin, “Combustion of large monolithic titanium particles in air. I. Experimental techniques, burning time and fragmentation modes”, Fizika Goreniya i Vzryva, 57:6 (2021), 20–31; Combustion, Explosion and Shock Waves, 57:6 (2021), 651–662
This publication is cited in the following 9 articles:
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O. V. Lapshin, O. A. Shkoda, “Synthesis of titanium nitride during double mechanical activation of titanium: in argon and in nitrogen”, Combustion, Explosion and Shock Waves, 60:1 (2024), 84–91
N. S. Belousova, O. G. Glotov, I. V. Sorokin, “Combustion of composite propellants with titanium”, J. Appl. Mech. Tech. Phys., 64:1 (2023), 18–22
Andrew W. Marsh, Andy X. Zheng, Gwendolyn T. Wang, Michael L. Hobbs, Sean P. Kearney, Yi Chen Mazumdar, “Evolution of titanium particle combustion in potassium perchlorate and air”, Combustion and Flame, 253 (2023), 112787
O.G. Glotov, “Screening of metal fuels for use in composite propellants for ramjets”, Progress in Aerospace Sciences, 143 (2023), 100954
Weidong Zhong, Daolun Liang, Hong Zhong, Mengli Li, Kerun Chen, Zhiyuan Niu, Yang Wang, Dekui Shen, “Combustion behavior of discrete magnesium diboride particles in the state of motion”, Acta Astronautica, 205 (2023), 119
Igor Altman, Michelle Pantoya, “Comprehending Metal Particle Combustion: a Path Forward”, Propellants Explo Pyrotec, 47:7 (2022)
O. G. Glotov, N. S. Belousova, G. S. Surodin, “Combustion of large monolithic titanium particles in air. II. Characteristics of condensed combustion products”, Combustion, Explosion and Shock Waves, 58:6 (2022), 674–687
N. S. Belousova, O. G. Glotov, “Laws of motion and aerodynamic drag coefficient for large titanium particles burning in air”, Thermophys. Aeromech., 29:4 (2022), 557