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Author | Muto, S.; Merk, N.; Schryvers, D.; Tanner, L.E. | ||||
Title | Displacive-replacive phase transformation in a Ni62.5Al37.5 phase studies by HREM and microdiffraction | Type | A1 Journal article | ||
Year | 1993 | Publication | Philosophical magazine: B: physics of condensed matter: electronic, optical and magnetic properties | Abbreviated Journal | |
Volume | 67 | Issue | 5 | Pages | 673-689 |
Keywords | A1 Journal article; Electron microscopy for materials research (EMAT) | ||||
Abstract | The structure of the metastable Ni2Al phase, which has long been a matter of controversy, has been carefully re-examined by means of high-resolution transmission electron microscopy (HREM) and electron microdiffraction. First, it is concluded that theas-quenched NixAl100-x(60 less-than-or-equal-to x less-than-or-equal-to 65) material already exhibits a partial omega-type collapse in a one-dimensional fashion which and is consistent with the anomalous dip in the phonon dispersion curve. Ni2Al precipitates are formed on annealing by thermal decomposition of the high-temperature NixAl100-xB2 phase and still retain the small omega-type shuffle. The amount of displacement in the well developed Ni2Al phase was estimated to be between 20 and 50% of the ideal omega collapse; this was determined by means of a combined technique of HREM and microdiffraction together with dynamical calculations of HREM images and diffraction intensities. | ||||
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Corporate Author | Thesis | ||||
Publisher | Place of Publication | London | Editor | ||
Language | Wos | A1993LF72000005 | Publication Date | 2007-07-08 | |
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 1364-2812;1463-6417; | ISBN | Additional Links | UA library record; WoS full record; WoS citing articles | |
Impact Factor | Times cited | 16 | Open Access | ||
Notes | Approved | no | |||
Call Number | UA @ lucian @ c:irua:6776 | Serial | 740 | ||
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