Real time observation of high temperature oxidation and sulfidation of Fe-Cr model alloys

2018 ◽  
Vol 69 (6) ◽  
pp. 678-689 ◽  
Author(s):  
Christiane Stephan-Scherb ◽  
Kathrin Nützmann ◽  
Axel Kranzmann ◽  
Manuela Klaus ◽  
Christoph Genzel
Keyword(s):  
High Temperature ◽  
Real Time ◽  
High Temperature Oxidation ◽  
Temperature Oxidation ◽  
Time Observation ◽  
Real Time Observation

Real-Time Observation of High Temperature Interface between SiC Substrate and Solution during Dissolution of SiC

2013 ◽  
Vol 740-742 ◽  
pp. 35-38 ◽  
Author(s):  
Sakiko Kawanishi ◽  
Takeshi Yoshikawa ◽  
Kazuki Morita
Keyword(s):  
High Temperature ◽  
Real Time ◽  
Back Surface ◽  
Lateral Direction ◽  
Digital Microscope ◽  
Time Observation ◽  
A New Technique ◽  
Solid Liquid Interface ◽  
Solid Liquid ◽  
Real Time Observation

Precise morphological control of the interface between SiC and solution during the solution growth of SiC is crucial for obtaining high quality crystals with fewer defects and less step bunching. In this paper, a new technique for real-time observation of the high temperature interface between SiC and solution through the back surface of SiC was developed by focusing on the “wide” bandgap of SiC. Real-time observation of the interface during dissolution of SiC into an Fe-Si solvent alloy was carried out using a digital microscope, and the submicron-height structure of the solid-liquid interface was clearly observed at up to 1773 K. Interface morphologies, such as numerous hexagonal pits which were present at the initial stage of dissolution, followed by preferential dissolution in the lateral direction, were observed.

Real-Time Observation of Crystal Evaporation in a Metal Phosphate at High Temperature

2013 ◽  
Vol 135 (21) ◽  
pp. 7811-7814 ◽  
Author(s):  
Sung-Yoon Chung ◽  
Young-Min Kim ◽  
Si-Young Choi ◽  
Jin-Gyu Kim
Keyword(s):  
High Temperature ◽  
Real Time ◽  
Metal Phosphate ◽  
Time Observation ◽  
Real Time Observation

scholarly journals Real-Time Observation of High-Temperature Gas Corrosion in Dry and Wet SO2-Containing Atmosphere

JOM ◽  
2019 ◽  
Vol 71 (4) ◽  
pp. 1560-1565
Author(s):  
Florian Falk ◽  
Martina Menneken ◽  
Christiane Stephan-Scherb
Keyword(s):  
High Temperature ◽  
Real Time ◽  
Gas Corrosion ◽  
Time Observation ◽  
Real Time Observation ◽  
High Temperature Gas

Real-time observation system development for high-temperature liquid/solid interfaces and its application to solid-source solution growth of AlN

2015 ◽  
Vol 8 (6) ◽  
pp. 065601 ◽  
Author(s):  
Yoshihiro Kangawa ◽  
Akira Kusaba ◽  
Hiroaki Sumiyoshi ◽  
Hideto Miyake ◽  
Michał Boćkowski ◽  
...  
Keyword(s):  
High Temperature ◽  
Real Time ◽  
System Development ◽  
Solution Growth ◽  
Observation System ◽  
Temperature Liquid ◽  
Time Observation ◽  
Real Time Observation

Real-time observation of vortex lattices in a superconductor

1993 ◽  
Vol 51 ◽  
pp. 1050-1051
Author(s):  
K. Harada ◽  
T. Matsuda ◽  
J.E. Bonevich ◽  
M. Igarashi ◽  
S. Kondo ◽  
...  
Keyword(s):  
Real Time ◽  
Flux Line ◽  
Electron Holography ◽  
Lorentz Microscopy ◽  
Vortex Lattices ◽  
Flux Lines ◽  
Magnetic Flux Lines ◽  
Time Observation ◽  
Thin Superconductor ◽  
Real Time Observation

Previous observations of magnetic flux-lines (vortex lattices) in superconductors, such as the field distribution of a flux-line, and flux-line dynamics activated by heat and current, have employed the high spatial resolution and magnetic sensitivity of electron holography. And recently, the 2-D static distribution of vortices was also observed by this technique. However, real-time observations of the vortex lattice, in spite of scientific and technological interest, have not been possible due to experimental difficulties. Here, we report the real-time observation of vortex lattices in a thin superconductor, by means of Lorentz microscopy using a 300 kV field emission electron microscope. This technique allows us to observe the dynamic motion of individual vortices and record the events on a VTR system.The experimental arrangement is shown in Fig. 1. A Nb thin film for transmission observation was prepared by chemical etching. The grain size of the film was increased by annealing, and single crystals were observed with a thickness of 50∼90 nm.

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