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'Mössbauer spectroscopy' in keywords Facet   Publication Year 1997  [X]
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1997[X]
1Author    Giacomo Cao, Giorgio Concas, Anna Corrias, Roberto Orru ', Giorgio Paschina, Barbara Simoncini, Giorgio SpanoRequires cookie*
 Title    Investigation of the Reaction between Fe 2 0 3 and Al Accomplished by Ball Milling and Self-Propagating High-Temperature Techniques  
 Abstract    In this work we investigate the mechanism of product formation of the aluminothermic reaction of Fe 2 0 3 in the presence of A1 2 0 3 using Ball Milling and Self-propagating High-temperature techniques. Results obtained by experiments under either argon or air atmosphere are analysed by X-ray diffraction and Mössbauer spectroscopy, together with microstructure observations. It is shown that ball milling products are strongly affected by the kind of atmosphere, while self-propagating high-temperature ones are only weakly influenced. Reaction mechanisms taking place in these cases are proposed. While ball milling involves only solid state reactions, the formation of a melt occurs under self-propagating high-temperature conditions. 
  Reference    Z. Naturforsch. 52a, 539—549 (1997); received April 25 1997 
  Published    1997 
  Keywords    Aluminothermic reduction, Ball Milling, Self-propagating High-temperature Synthesis, Mössbauer spectroscopy, X-ray diffraction, Mechanism of reaction 
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 TEI-XML for    default:Reihe_A/52/ZNA-1997-52a-0539.pdf 
 Identifier    ZNA-1997-52a-0539 
 Volume    52