Structural changes and thermal properties of aluminium micro- and nano-powders

Internal stresses in pre-stressed micron-scale aluminum core-shell particles and their improved reactivity

“…Also, flame propagation rate will be measured for untreated and treated particles to be sure that the treatment indeed leads to increasing reactivity. We would like to mention some previous publication on the measurements of lattice parameters and stresses in Al particles, 11,17,18 but they were not related to change in T 0 due to annealing.…”

Correlating ignition mechanisms of aluminum-based reactive materials with thermoanalytical measurements

“…However, possible cracks in the oxide shell due to mismatch between thermal expansion coefficients between aluminum and alumina are discounted. Such cracks may not be forming for thin oxide shells, as analyses of mechanical properties of such shells suggest [42]. It was shown that strain effects appear only when the thickness exceeds 20 nm, a situation that can occur in low heating rate TA experiments, but highly improbable in ignition scenarios.…”

Effects of water depth and laser pulse numbers on size properties of colloidal nanoparticles prepared by nanosecond pulsed laser ablation in liquid

“…Some other parameters such as liquid depth above target and number of laser pulses also play significant roles in the laser ablation process and therefore size properties of produced nanoparticles. In recent years, the importance of aluminum and titanium based nanomaterials have extremely increased due to their noticeable physical and chemical properties in a wide range of applications such as catalysis, coating, thermal protections and solar cell [11][12][13][14]. In PLAL process, active metals such as titanium and aluminum usually react with the surrounding liquid molecules and based on the liquid chemical composition form their compound oxide, hydroxide and other molecules on their surface.…”