Formation of TiAl intermetallics by heat treatment of cold-sprayed precursor deposits

Microwave activated combustion synthesis of porous Al–Ti structures for composite reinforcing

“…This is confirmed by other works [1,[10][11][12], where a differential scanning calorimeter DSC was used. Generally, the prevailed opinion is that irrespective of stoichiometry of the initial system, Al 3 Ti is the first compound created at the interface of the reacting materials.…”

Effects of Al Content and Addition of Third Element on Fabrication of Ti-Al Intermetallic Coatings by Heat Treatment of Warm-Sprayed Precursors

“…Novoselova et al used Cold Spray Technique to deposit a mixture of Ti and Al powders and converted it into intermetallic phases by heat treatment. As a result, TiAl and Ti 3 Al intermetallic phases were obtained with the porosity up to 25-30% mostly due to the Kirkendall effect ( Ref 11,12). Also in our previous study, Ti-Al composite coatings were prepared by warm spraying of a mixture of elemental powders with titanium-to-aluminum ratio of 50:50 under three different spray conditions and underwent two-stage heat treatment.…”

Thermal spraying of transition metal aluminides: An overview

“…11 shows their oxidation behaviour at the three different temperatures and the parabolic kinetic constants at the initial stages were found to be 7.2Â10 À2 , 39.8Â10 À2 and 136.9Â10 À2 mg cm À2 h À1/2 respectively. A more detailed study of the intermetallic sequence formation during thermal treatment of the as-sprayed pure elements was investigated by Novoselova et al [157], who used He gas without being heated.…”