title: The study of Ni + Al self-propagating high-temperature synthesis using synchrotron radiation and a two-dimensional DED-5 detector.
abstract: New kinetics data have been obtained for a Ni + Al self-propagating high-temperature synthesis (SHS). In order to achieve a time resolution of 0.005 s it was necessary to increase the intensity of the incident beam and the aperture of the X-ray detector. A graphite monochromator with a wavelength bandwidth of deltalambda/lambda approximately 10(-2), instead of the traditional 10(-3)-10(-4), and a two-dimensional detector (DED-5) were used for these purposes. Analysis of the kinetics data indicated that the main chemical transformations occurred during 60-70 ms. The DED-5 detector also helped to establish that the recrystallization process of intermetallide NiAl took place some time after the SHS, and the formation of crystallites could be seen as separate Bragg spots on the detector image.
authors.affiliation: Institute of Solid State Chemistry and Mechanochemistry SB RAS, Novosibirsk, Russia. m.r.sharafutdinov@inp.nsk.su
authors.forename: Marat
authors.initials: M
authors.lastname: Sharafutdinov
authors.forename: Vladimir
authors.initials: V
authors.lastname: Alexandrov
authors.forename: Oleg
authors.initials: O
authors.lastname: Evdokov
authors.forename: Dmitry
authors.initials: D
authors.lastname: Naumov
authors.forename: Boris
authors.initials: B
authors.lastname: Pirogov
authors.forename: Elena
authors.initials: E
authors.lastname: Pismenskaya
authors.forename: Alexander
authors.initials: A
authors.lastname: Rogachev
authors.forename: Boris
authors.initials: B
authors.lastname: Tolochko