Thermal spraying

Spray pyrolysis

Engineering

Nanoparticle

Pyrolysis

Materials science

Shadowgraphy

Coating

Telecommunications

Computer science

Chemical engineering

Laser

Physics

Nanotechnology

Optics

Thin film

Drop (telecommunication)

Combustion and Flame

Experimental investigations of in-flight droplet microexplosions (μ-explosions) during flame spray pyrolysis and corresponding single drop experiments are carried out. High-speed shadowgraphy recordings with an iron nitrate-based precursor spray flame revealed the occurrence of distinct μ-explosions in high frequencies during the synthesis of iron oxide nanoparticles. This finding may lay the foundation for the investigation of the role and relevance of μ-explosions on the production and formulation of functional nanoparticle with distinct properties.

Microexplosions of multicomponent drops in spray flames