Levitated Droplets as Model System for Spray Drying of Complex Oxides: A Simultaneous in Situ X-ray Diffraction/Raman Study

2011 ◽  
Vol 23 (24) ◽  
pp. 5425-5431 ◽  
Author(s):  
Jörg Radnik ◽  
Ursula Bentrup ◽  
Jork Leiterer ◽  
Angelika Brückner ◽  
Franziska Emmerling
Keyword(s):  
Spray Drying ◽  
Complex Oxides ◽  
Model System ◽  
X Ray Diffraction ◽  
X Ray ◽  
Levitated Droplets ◽  
Raman Study

Flying droplets as model system for spray drying—An in situ synchrotron X-ray scattering study on complex oxides catalyst precursors

2010 ◽  
Vol 155 (3-4) ◽  
pp. 326-330 ◽  
Author(s):  
Jork Leiterer ◽  
Franziska Emmerling ◽  
Jörg Radnik ◽  
Ursula Bentrup ◽  
Angelika Brückner
Keyword(s):  
Spray Drying ◽  
Complex Oxides ◽  
Model System ◽  
X Ray ◽  
X Ray Scattering ◽  
Scattering Study ◽  
Ray Scattering

Influences of oxygen impurity contained in nitrogen on the reaction of titanium with nitrogen

2009 ◽  
Vol 24 (7) ◽  
pp. 2400-2408 ◽  
Author(s):  
Fu-Hsing Lu ◽  
Bor-Feng Jiang ◽  
Jen-Li Lo ◽  
Mu-Hsuan Chan
Keyword(s):  
Low Temperatures ◽  
Nitrogen Atmosphere ◽  
Model System ◽  
Oxygen Impurity ◽  
X Ray Diffraction ◽  
Nitrogen Gas ◽  
X Ray ◽  
Partial Pressures

In this work, Ti pellets were selected as a model system to investigate the influences of oxygen impurity in nitrogen gas on the reaction of a metal with the nitrogen. Analyzing changes in the in situ oxygen partial pressures when titanium specimens were annealed in the oxygen-containing nitrogen shows that the dissolution of oxygen in Ti and TiNx is exothermic, and the solubility decreases as the temperature increases. X-ray diffraction results show that nitridation of Ti occurred before oxidation, even in an oxygen-containing nitrogen atmosphere. Kinetics apparently predominates over thermodynamics at low temperatures in such a system.

SAPO-34 methanol-to-olefin catalysts under working conditions: A combined in situ powder X-ray diffraction, mass spectrometry and Raman study

2009 ◽  
Vol 268 (2) ◽  
pp. 290-296 ◽  
Author(s):  
David S. Wragg ◽  
Rune E. Johnsen ◽  
Murugan Balasundaram ◽  
Poul Norby ◽  
Helmer Fjellvåg ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Working Conditions ◽  
X Ray Diffraction ◽  
X Ray ◽  
Methanol To Olefin ◽  
Raman Study

The Use of Advanced Analytical Techniques for Characterization of the Chemical, Physical, and Crystallographic Nature of a Surface

1973 ◽  
Vol 31 ◽  
pp. 132-133 ◽  
Author(s):  
R. E. Herfert
Keyword(s):  
Surface Characterization ◽  
Analytical Techniques ◽  
X Ray Diffraction ◽  
Depth Of Penetration ◽  
X Ray ◽  
The Past ◽  
Transmission Electron ◽  
Scanning Electron

Studies of the nature of a surface, either metallic or nonmetallic, in the past, have been limited to the instrumentation available for these measurements. In the past, optical microscopy, replica transmission electron microscopy, electron or X-ray diffraction and optical or X-ray spectroscopy have provided the means of surface characterization. Actually, some of these techniques are not purely surface; the depth of penetration may be a few thousands of an inch. Within the last five years, instrumentation has been made available which now makes it practical for use to study the outer few 100A of layers and characterize it completely from a chemical, physical, and crystallographic standpoint. The scanning electron microscope (SEM) provides a means of viewing the surface of a material in situ to magnifications as high as 250,000X.

In-situ Investigation of Bainite Formation with fast X-Ray Diffraction (iXRD)

2017 ◽  
Vol 72 (6) ◽  
pp. 355-364
Author(s):  
A. Kopp ◽  
T. Bernthaler ◽  
D. Schmid ◽  
G. Ketzer-Raichle ◽  
G. Schneider
Keyword(s):  
X Ray Diffraction ◽  
X Ray ◽  
In Situ Investigation

Texture Evolution Under Fast Heating and Cooling Rates of Zirconium Alloys Studied In-Situ by Synchrotron X-Ray Diffraction

2020 ◽  
Author(s):  
Chi-Toan Nguyen ◽  
Alistair Garner ◽  
Javier Romero ◽  
Antoine Ambard ◽  
Michael Preuss ◽  
...  
Keyword(s):  
Texture Evolution ◽  
Zirconium Alloys ◽  
X Ray Diffraction ◽  
Fast Heating ◽  
Cooling Rates ◽  
X Ray ◽  
Heating And Cooling

STRUCTURAL EVOLUTION OF EXCEPTIONALLY IRON-DEFICIENT HEMATITE NANOCRYSTALS AS OBSERVED BY IN SITU SYNCHROTRON X-RAY DIFFRACTION

2019 ◽  
Author(s):  
Si Athena Chen ◽  
◽  
Peter Heaney ◽  
Jeffrey E. Post ◽  
Peter J. Eng ◽  
...  
Keyword(s):  
Structural Evolution ◽  
X Ray Diffraction ◽  
X Ray ◽  
Iron Deficient
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