Study on the Room-temperature Oxidation of a Fe Thin Film on Pt(110)

2011 ◽  
Vol 59 (1) ◽  
pp. 105-109 ◽  
Author(s):  
S-G. Cho ◽  
K-H. Park ◽  
D-H. Han ◽  
Tschang-Uh Nahm
1995 ◽  
Vol 5 (2) ◽  
pp. 1525-1528 ◽  
Author(s):  
M. Boutet ◽  
D. Di Gioacchino ◽  
F. Celani ◽  
A. Spallone ◽  
P. Tripodi ◽  
...  

Author(s):  
R. C. Moretz ◽  
G. G. Hausner ◽  
D. F. Parsons

Use of the electron microscope to examine wet objects is possible due to the small mass thickness of the equilibrium pressure of water vapor at room temperature. Previous attempts to examine hydrated biological objects and water itself used a chamber consisting of two small apertures sealed by two thin films. Extensive work in our laboratory showed that such films have an 80% failure rate when wet. Using the principle of differential pumping of the microscope column, we can use open apertures in place of thin film windows.Fig. 1 shows the modified Siemens la specimen chamber with the connections to the water supply and the auxiliary pumping station. A mechanical pump is connected to the vapor supply via a 100μ aperture to maintain steady-state conditions.


Author(s):  
E. L. Vigil ◽  
E. F. Erbe

In cotton seeds the radicle has 12% moisture content which makes it possible to prepare freeze-fracture replicas without fixation or cryoprotection. For this study we have examined replicas of unfixed radicle tissue fractured at room temperature to obtain data on organelle and membrane structure.Excised radicles from seeds of cotton (Gossyplum hirsutum L. M-8) were fractured at room temperature along the longitudinal axis. The fracture was initiated by spliting the basal end of the excised radicle with a razor. This procedure produced a fracture through the tissue along an unknown fracture plane. The warm fractured radicle halves were placed on a thin film of 100% glycerol on a flat brass cap with fracture surface up. The cap was rapidly plunged into liquid nitrogen and transferred to a freeze- etch unit. The sample was etched for 3 min at -95°C to remove any condensed water vapor and then cooled to -150°C for platinum/carbon evaporation.


Optik ◽  
2021 ◽  
Vol 234 ◽  
pp. 166615
Author(s):  
S.R. Cynthia ◽  
R. Sivakumar ◽  
C. Sanjeeviraja

Author(s):  
Kumar Haunsbhavi ◽  
Karuppiah Deva Arun Kumar ◽  
Paolo Mele ◽  
Omar M. Aldossary ◽  
Mohd Ubaidullah ◽  
...  

2021 ◽  
Vol 13 (2) ◽  
pp. 3445-3453
Author(s):  
Wei Huang ◽  
Xinge Yu ◽  
Li Zeng ◽  
Binghao Wang ◽  
Atsuro Takai ◽  
...  

RSC Advances ◽  
2021 ◽  
Vol 11 (29) ◽  
pp. 17910-17913
Author(s):  
Liuhui Lei ◽  
Yuanyuan Tan ◽  
Xing Yuan ◽  
Wei Dou ◽  
Jiale Zhang ◽  
...  

Flexible electric-double-layer (EDL) thin film transistors (TFTs) based on a vertical InGaZnO4 (IGZO) channel are fabricated at room temperature.


2021 ◽  
pp. 149619
Author(s):  
Manni Chen ◽  
Zhipeng Zhang ◽  
Runze Zhan ◽  
Juncong She ◽  
Shaozhi Deng ◽  
...  

2021 ◽  
Vol 27 (S1) ◽  
pp. 726-728
Author(s):  
G. Tarango-Rivero ◽  
G. Herrera-Perez ◽  
C. Carreño-Gallardo ◽  
C.G. Garay-Reyes ◽  
I. Estrada-Guel ◽  
...  

Author(s):  
Minami Matsumoto ◽  
Ken Kimura ◽  
Natsuko Sugiura

AbstractDuplex stainless steels (DSSs), which consist of ferrite and austenite phases, are widely used owing to their high strength and good corrosion resistance. However, the oxidation behavior of DSSs is extremely complicated because they have dual phases. In this study, changes in the scale and the metal substrate during oxidation were investigated. UNS S32101 (Fe-21.5%Cr–5%Mn–1.5%Ni–0.3%Mo–0.22%N), which is a typical type of DSS, was annealed at 1473 K for up to 36 ks in air. The microstructure of UNS S32101 consisted of austenite/ferrite phases, the ratio of which was 50:50 at room temperature. After oxidation, Cr, Mn-oxide formed predominantly. The metal substrate beneath the scale changed mostly to ferrite. In the same region, depletion of Mn and N concentrations resulted. The decrease in Mn was due to the formation of Cr, Mn-oxide. In addition, it was revealed that N content of the metal substrate decreased due to the formation of N2 gas along with the depletion of Mn. It was assumed that the decrease in Mn and N, which are austenite-stabilized elements, led to an increase in ferrite in the depletion area of Mn and N. From this result, it was expected that the compositional changes in the Mn/N depletion area were caused by the oxidation of steel.


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