Plasma plume photography and spectroscopy of Fe—Oxide materials

Laser-induced breakdown spectroscopy of iron oxide powder

“…These results support earlier observations that LIBS spectra of iron oxide powder, pressed powder pellets and sintered ceramics are qualitatively similar and do not significantly depend on sample morphology. 30 For quantitative LIBS analysis, more than 20 different Fe 2 O 3 powder samples are investigated. The powders have various impurities at different concentrations (as determined by WCA).…”

“…Time-resolved photography revealed that particles are ejected from the loose Fe 2 O 3 powder by laser ablation. 30 The estimated velocity of the particle front was about 18 m s À1 at a time of 400 ms after the laser pulse. Flushing with N 2 gas (overpressure 2 bar, flow $10 L min À1 ) is used therefore to remove ejected particles from the gas atmosphere.…”

Identification of the Minor Chemical Elements in the Particulate Matter Exhaust Emissions From In-Use Diesel Engine Passenger Vehicles

“…Laser-induced breakdown spectroscopy (LIBS) [27][28][29] is an optical measurement technique [30] for rapid qualitative [31] and sensitive quantitative [32] compositional analysis of various forms of materials like solids [33], liquids [34], gases [35], powders [36] or nanoparticles [37].…”

Single and Double Laser Pulse Interaction with Solid State – Application to Plasma Spectroscopy

“…Subsequently ionized plasma is formed. Ablated vapour and plasma expands into the ambient atmosphere, producing shock waves, followed by optical emission and particle ejection (Viskup et al, 2009). Later the cooling effect and visible crater produced as a side effect on a surface.…”