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Kinetics of ordering in NiPt |
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| Authors: | M. Greenholz A. Kidron U. Shimony |
| Affiliation: | (1) Department of Physics, Technion (Israel Institute of Technology), Haifa, Israel;(2) Present address: Materials Science Division, Applied Sciences Building, The University of Sussex, Falmer, Brighton, UK;(3) Present address: Materials Science Department, The Technological Institute, Northwestern University, Evanston, Illinois, USA;(4) Present address: Department of Electrical Engineering, Technion, Haifa, Israel |
| Abstract: | The kinetics of ordering for an almost equiatomic NiPt alloy were measured by X-ray diffraction. The measurements were carried out at the temperature of annealing between 390 and 570° C.The results show that the transition from a disordered to an ordered state can be attributed to two processes: one is a nucleation of ordered zones and their growth and the other is a homogeneous ordering process. The latter is dominant at low temperatures (< 500° C) and nucleation-and-growth kinetics are dominant at higher temperatures. |
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