A New Microbalance Technique for Kinetic Studies of Gas—Metal Reactions at High Temperatures

1970 ◽  
pp. 181-186
Author(s):  
A. Pebler
Keyword(s):  
High Temperatures ◽  
Kinetic Studies

Kinetic studies of coke formation and removal on HP40 in cycled atmospheres at high temperatures

1998 ◽  
Vol 49 (5) ◽  
pp. 352-359 ◽  
Author(s):  
C. Steurbaut ◽  
H.J. Grabke ◽  
D. Stobbe ◽  
F.R. van Buren ◽  
S.J. Korf ◽  
...  
Keyword(s):  
High Temperatures ◽  
Coke Formation ◽  
Kinetic Studies

Kinetic Studies on the Reactions of CF3with O(3P) and H Atoms at High Temperatures

1998 ◽  
Vol 102 (43) ◽  
pp. 8339-8348 ◽  
Author(s):  
Kazuo Takahashi ◽  
Yoshinobu Sekiuji ◽  
Yasuyuki Yamamori ◽  
Tadaaki Inomata ◽  
Keiichi Yokoyama
Keyword(s):  
High Temperatures ◽  
Kinetic Studies

Design and characterisation of a close-concentric annular reactor for kinetic studies at high temperatures

2002 ◽  
Vol 57 (5) ◽  
pp. 749-762 ◽  
Author(s):  
D. Papadias ◽  
U. Würtenberger ◽  
L. Edsberg ◽  
P. Björnbom
Keyword(s):  
High Temperatures ◽  
Kinetic Studies ◽  
Annular Reactor

Kinetic Studies on the Reactions of Heptafluoropropanes with O(3P) and H Atoms at High Temperatures

2004 ◽  
Vol 108 (8) ◽  
pp. 1417-1424 ◽  
Author(s):  
Osami Yamamoto ◽  
Kazuo Takahashi ◽  
Tadaaki Inomata
Keyword(s):  
High Temperatures ◽  
Kinetic Studies

scholarly journals QCL-Based Dual-Comb Spectrometer for Multi-Species Measurements at High Temperatures and High Pressures

Sensors ◽  
2020 ◽  
Vol 20 (12) ◽  
pp. 3602 ◽  
Author(s):  
Guangle Zhang ◽  
Raphael Horvath ◽  
Dapeng Liu ◽  
Markus Geiser ◽  
Aamir Farooq
Keyword(s):  
High Temperatures ◽  
High Pressures ◽  
Kinetic Studies ◽  
Laser Frequency ◽  
Chemical Kinetic ◽  
Time Resolved ◽  
Frequency Combs ◽  
Laser Sources ◽  
Kinetic Investigations ◽  
Absorption Measurements

Rapid multi-species sensing is an overarching goal in time-resolved studies of chemical kinetics. Most current laser sources cannot achieve this goal due to their narrow spectral coverage and/or slow wavelength scanning. In this work, a novel mid-IR dual-comb spectrometer is utilized for chemical kinetic investigations. The spectrometer is based on two quantum cascade laser frequency combs and provides rapid (4 µs) measurements over a wide spectral range (~1175–1235 cm−1). Here, the spectrometer was applied to make time-resolved absorption measurements of methane, acetone, propene, and propyne at high temperatures (>1000 K) and high pressures (>5 bar) in a shock tube. Such a spectrometer will be of high value in chemical kinetic studies of future fuels.

In situ REM imaging of surface processes on ceramic bulk crystals from 300 to 1670 K in a conventional TEM

1991 ◽  
Vol 49 ◽  
pp. 660-661
Author(s):  
Z. L. Wang ◽  
J. Bentley
Keyword(s):  
High Temperatures ◽  
Image Resolution ◽  
Atomic Processes ◽  
Crystal Surfaces ◽  
Beam Radiation ◽  
Surface Areas ◽  
Transmission Electron ◽  
Reflection Electron Microscopy ◽  
Gas Reactions

Studying the behavior of surfaces at high temperatures is of great importance for understanding the properties of ceramics and associated surface-gas reactions. Atomic processes occurring on bulk crystal surfaces at high temperatures can be recorded by reflection electron microscopy (REM) in a conventional transmission electron microscope (TEM) with relatively high resolution, because REM is especially sensitive to atomic-height steps.Improved REM image resolution with a FEG: Cleaved surfaces of a-alumina (012) exhibit atomic flatness with steps of height about 5 Å, determined by reference to a screw (or near screw) dislocation with a presumed Burgers vector of b = (1/3)<012> (see Fig. 1). Steps of heights less than about 0.8 Å can be clearly resolved only with a field emission gun (FEG) (Fig. 2). The small steps are formed by the surface oscillating between the closely packed O and Al stacking layers. The bands of dark contrast (Fig. 2b) are the result of beam radiation damage to surface areas initially terminated with O ions.

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