Interdiffusion in Fe/Pt Multilayers: In Situ High Temperature Synchrotron Radiation Reflectivity Study

2011 ◽  
Vol 13 (6) ◽  
pp. 475-479 ◽  
Author(s):  
Nikolay Zotov ◽  
Jürgen Feydt ◽  
Alan Savan ◽  
Alfred Ludwig ◽  
Johannes von Borany
1999 ◽  
Vol 85 (2) ◽  
pp. 169-173 ◽  
Author(s):  
Masao KIMURA ◽  
Muneyuki IMAFUKU ◽  
Masao KUROSAKI ◽  
Siro FUJII ◽  
Yasuhide MORIMOTO

2011 ◽  
Vol 696 ◽  
pp. 63-69 ◽  
Author(s):  
Shigenari Hayashi ◽  
Isao Saeki ◽  
Yoshitaka Nishiyama ◽  
Takashi Doi ◽  
Shoji Kyo ◽  
...  

Very thin Fe-coatings, ~50nm, were found to suppress metastable Al2O3 formation on Fe-50Al and Ni-50Al alloys in our previous study. The authors proposed a mechanism whereby α-Al2O3 precipitates from the Al-saturated Fe2O3, which was formed during initial oxidation, since α-Al2O3 and α-Fe2O3 have isomorphous structures. In order to confirm the proposed mechanism, in-situ measurements were made of structural changes in the oxide scales formed on FeAl with and without Fe coating during heating and subsequent isothermal high temperature oxidation by synchrotron radiation with a two-dimensional X-ray detector. Diffraction peaks from Fe2O3 were initially observed at around 350°C on Fe-coated samples. The lattice parameter of the Fe2O3 initially increased linearly due to thermal expansion, but then rapidly decreased due to the formation of a solid solution of Fe2O3-Al2O3. α-Al2O3 started to appear at around 800°C, but no peaks from metastable Al2O3 were observed. The diffraction peaks from the α-Al2O3 on Fe-coated samples consisted of two distinct peaks, indicating that the α-Al2O3 had two different lattice parameters. These results suggest that the α-Al2O3 was formed not only by precipitation from the Al-saturated Fe2O3, but also by oxidation of Al in the substrate.


2021 ◽  
Author(s):  
Yuexiang Wang ◽  
Zhihong Li ◽  
Jiao Kong ◽  
Liping Chang ◽  
Yixin Zhao ◽  
...  

1983 ◽  
Vol 16 (6) ◽  
pp. 646-648 ◽  
Author(s):  
C. Jourdan ◽  
J. Gastaldi

With a high-temperature camera, designed for in situ synchrotron radiation X-ray topography, the crystallography of the α → β transition in titanium has been studied.


2005 ◽  
Vol 495-497 ◽  
pp. 125-130 ◽  
Author(s):  
Andersan S. Paula ◽  
Karimbi Koosappa Mahesh ◽  
Francisco Manuel Braz Fernandes ◽  
Rui Miguel S. Martins ◽  
A.M.A. Cardoso ◽  
...  

The aim of the present experiment was to analyse the structural evolution during annealing of Nickel-Titanium (Ni-Ti) SMA subjected to different thermomechanical treatments. As structural evolutions are accompanied by the changes in preferential orientations, pole figures were employed to study the in-situ conditions.


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