On the mechanism of aluminum ignition in steam explosions

Effects of water deck on rock blasting performance

“…The steam explosion causes by rapid vaporisation of water which is considered as a critical hazard in many industries. In the nuclear engineering, the energetic steam explosion at the nuclear reactor has long been considered as a purely physical heat transform of hot molten metal to water but the role of exothermal chemical oxidation has been discussed 34 . The steam explosion due to physical heat transfer requires extremely fast heat transfer rate.…”

Microstructural analysis of MTR fuel plates damaged by a coolant flow blockage

“…However, as observed in zone D, the full fission gas release will cause breaking of the cladding and as such expose pure aluminum particles to a water or steam environment. For an Al particle coming in contact with water or steam at temperatures below 1500°C, a protective oxide layer quickly shields the particle surface and reduces the subsequent rate of oxygen uptake to essentially zero [26]. The growth of such a protective oxide layer during the incident, is observed on the inner surface on the cracks in the cladding resulting from the fission gas release.…”

Theoretical Study on Reaction Mechanism of Aluminum-Water System

“…For the high heat of combustion of Al with various oxidizers that are encountered in practical applications, a considerable number of studies, such as the ignition temperature of Al in kinds of gases [5,6] and combustion characteristics [7,8], have been published, especially concerning the flame characteristics of Al combustion [9,10]. In order to improve the propulsion performance for the reaction of Al with H 2 O, and make the reaction proceed, a great deal of work has been carried out [11][12][13][14][15][16][17][18], such as the reaction of different sizes of Al with H 2 O, and the addition of Mg or Li powder into Al powder.…”