RETRACTED: Nitrogen spray atomization of molten tin metal: Powder morphology characteristics

Metz, Renaud; Machado, Céline; Houabes, Mourad; Elkhatib, M.; Hassanzadeh, Manouchehr

doi:10.1016/j.jmatprotec.2007.05.006

Cited by 6 publications

(2 citation statements)

References 10 publications

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“…For a fixed value of the particle size, temperature, and composition, the constant k can be experimentally determined at any time from the pair of points (a,t) and relation (3). Under these conditions, designating as W(a) the first term of the equality (3), and replacing D with its numerical value (D = 1.57), the equation that describes the oxidation process can be written as:…”

Section: Resultsmentioning

confidence: 99%

“…The atomization process remains a good choice among the different methods of metal-powder production due to its versatility and the quality and purity of the resulting powders, the control of their properties and the potential for mass production [3]. The atomization process of molten metals is the starting step in a new production process for oxide ceramic powders.…”

Section: Introductionmentioning

confidence: 99%

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Complete Oxidation of Zinc Powder. Validation of Kinetics Models

Garcı́a¹,

Sánchez²,

Metz³

2008

Oxid Met

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The kinetics of complete oxidation of different samples of zinc powder by air has been investigated by thermogravimetric measurements under isothermal conditions in the range 973-1,173 K. Particles size was in the 63-80 lm range. We succeeded in carrying out the full oxidation of the powders far above the zinc-metal melting point (692.6 K). This phenomenon is linked to the presence of a thin ZnO layer which confines the liquid metal during the oxidation process. Two kinetics models have been verified. The apparent activation energies obtained from the Arrhenius law were 128 kJ mol -1 and 129 kJ mol -1 , respectively.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%