Open AccessThe study of Ni + Al self‐propagating high‐temperature synthesis using synchrotron radiation and a two‐dimensional DED‐5 detector
Author(s) -
Sharafutdinov Marat,
Alexandrov Vladimir,
Evdokov Oleg,
Naumov Dmitry,
Pirogov Boris,
Pismenskaya Elena,
Rogachev Alexander,
Tolochko Boris
Publication year - 2003
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049503017229
Subject(s) - detector , monochromator , synchrotron radiation , optics , crystallite , materials science , synchrotron , wavelength , radiation , kinetics , physics , diffraction , recrystallization (geology) , optoelectronics , paleontology , quantum mechanics , metallurgy , biology
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 Δλ/λ≃ 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.