2024 年 61 巻 1 号 p. 4-8
Spherical particles are widely used in industry because they improve fluidity, reduce equipment wear during transportation, and improve filling properties. In this study, we attempted to synthesize spherical fine particles by combustion synthesis process using explosives. As a target of combustion synthesis using explosives, A mixture of titanium powder, ammonium perchlorate and polybutadiene was burned to produce titanium oxide particles. After the raw particles are melted by combustion and turned into titanium oxide, they are transported to the gas phase by a large amount of gas generated by the combustion of explosives and spheroidized by surface tension. Since the shapes of these particles were all spherical, the combustion synthesis process using explosives can be expected as a new spherical particle generation process that does not require an external heat source.