scholarly journals Synchrotron Radiation Shed Light to In Situ and Dynamic Observation of High-Temperature Processes

2014 ◽  
Vol 12 (0) ◽  
pp. 165-170
Author(s):  
Masao Kimura
Keyword(s):  
High Temperature ◽  
Synchrotron Radiation ◽  
Dynamic Observation ◽  
High Temperature Processes ◽  
Shed Light

scholarly journals In Situ Observation Technique of High-temperature Reactions Using a New Image-plate System at Synchrotron Radiation

1999 ◽  
Vol 85 (2) ◽  
pp. 169-173 ◽  
Author(s):  
Masao KIMURA ◽  
Muneyuki IMAFUKU ◽  
Masao KUROSAKI ◽  
Siro FUJII ◽  
Yasuhide MORIMOTO
Keyword(s):  
High Temperature ◽  
Synchrotron Radiation ◽  
Image Plate ◽  
High Temperature Reactions ◽  
Plate System ◽  
Image Plate System

In Situ Measurement of the Phase Transformation Behavior of Al2O3 Scale during High-Temperature Oxidation using Synchrotron Radiation

2011 ◽  
Vol 696 ◽  
pp. 63-69 ◽  
Author(s):  
Shigenari Hayashi ◽  
Isao Saeki ◽  
Yoshitaka Nishiyama ◽  
Takashi Doi ◽  
Shoji Kyo ◽  
...  
Keyword(s):  
High Temperature ◽  
Synchrotron Radiation ◽  
High Temperature Oxidation ◽  
Structural Changes ◽  
Lattice Parameter ◽  
Transformation Behavior ◽  
Initial Oxidation ◽  
Temperature Oxidation ◽  
Diffraction Peaks

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.

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
Keyword(s):  
High Temperature ◽  
Synchrotron Radiation

In-Situ Study on High-Temperature Carbonization of Coking Coal by Synchrotron Radiation SAXS-WAXS

2021 ◽  
Author(s):  
Yuexiang Wang ◽  
Zhihong Li ◽  
Jiao Kong ◽  
Liping Chang ◽  
Yixin Zhao ◽  
...  
Keyword(s):  
High Temperature ◽  
Synchrotron Radiation ◽  
Coking Coal ◽  
In Situ Study

In Situ Observation of Grain Growth and Recrystallization of Steel at High Temperature

2010 ◽  
Vol 638-642 ◽  
pp. 1077-1082 ◽  
Author(s):  
Yasuhiro Yogo ◽  
Kouji Tanaka ◽  
Koukichi Nakanishi
Keyword(s):  
Grain Size ◽  
High Temperature ◽  
Grain Growth ◽  
In Situ Observation ◽  
Initial Structure ◽  
Grain Sizes ◽  
Dynamic Observation ◽  
Average Grain Size ◽  
Observation Method

An in-situ observation method for structures at high temperature is developed. The new observation device can reveal grain boundaries at high temperature and enables dynamic observation of these boundaries. Grain growth while maintaining microstructure at high temperature is observed by the new observation device with only one specimen for the entire observation, and grain sizes are quantified. The quantifying process reveals two advantages particular to the use of the new observation device: (1) the ability to quantify grain sizes of specified sizes and (2) the results of average grain size for many grains have significantly less errors because the initial structure is the same for the entire observation and the quantifying process. The new observation device has the function to deform a specimen while observing structures at high temperature, so that enables it to observe dynamic recrystallization of steel. The possibility to observe recrystallization is also shown.

Hydrophilic zeolite sorbents for In-situ water removal in high temperature processes

2017 ◽  
Vol 95 (10) ◽  
pp. 1842-1849 ◽  
Author(s):  
Marwa Ghodhbene ◽  
Francis Bougie ◽  
Pascal Fongarland ◽  
Maria C. Iliuta
Keyword(s):  
High Temperature ◽  
Water Removal ◽  
High Temperature Processes

Application of in situ synchrotron X-ray topography to the study of a solid-phase transformation: crystallography of the transition in pure titanium

1983 ◽  
Vol 16 (6) ◽  
pp. 646-648 ◽  
Author(s):  
C. Jourdan ◽  
J. Gastaldi
Keyword(s):  
Phase Transformation ◽  
High Temperature ◽  
Synchrotron Radiation ◽  
Solid Phase ◽  
Pure Titanium ◽  
X Ray ◽  
Solid Phase Transformation

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.

In Situ High Temperature Texture Characterisation in NiTi Shape Memory Alloy Using Synchrotron Radiation

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 ◽  
...  
Keyword(s):  
High Temperature ◽  
Synchrotron Radiation ◽  
Shape Memory Alloy ◽  
Present Experiment ◽  
Structural Evolution ◽  
Nickel Titanium ◽  
Niti Shape Memory Alloy ◽  
Pole Figures ◽  
In Situ Conditions

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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