scholarly journals Surface Analysis of MF–Aluminas and Related Supported Reagents by Scanning Electron Microscopy

1986 ◽  
Vol 59 (10) ◽  
pp. 3281-3282 ◽  
Author(s):  
Takashi Ando ◽  
James H. Clark ◽  
David G. Cork ◽  
Takahide Kimura
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Surface Analysis ◽  
Scanning Electron

The Electrochemically Formed Palladium-Deuterium System. I. Surface Composition and Morphology

1993 ◽  
Vol 46 (5) ◽  
pp. 663 ◽  
Author(s):  
CT Dillon ◽  
BJ Kennedy
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Surface Analysis ◽  
Surface Composition ◽  
Surface Topology ◽  
Platinum Anode ◽  
Single Feature ◽  
Scanning Electron

Surface analysis of palladium cathodes after prolonged electrolysis in D2O electrolytes shows evidence for the electrodeposition of Pt, Zn and Cu. The platinum comes from the platinum anode used in the work, whilst zinc and copper are present in the D2O. Scanning electron microscopy studies of cast palladium cathodes revealed a diverse surface topology with no single feature present. The effect of electrode pretreatment on the appearance of the microcrystallites is discussed, and evidence for a palladized overlay is presented.

Back-scattered and secondary electron images of scanning electron microscopy in dentistry: a new method for surface analysis

2012 ◽  
Vol 70 (6) ◽  
pp. 603-609 ◽  
Author(s):  
Mohammad Ali Saghiri ◽  
Kamal Asgar ◽  
Mehrdad Lotfi ◽  
Kasra Karamifar ◽  
Ali Mohammad Saghiri ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Surface Analysis ◽  
Secondary Electron ◽  
New Method ◽  
Scanning Electron

Corrosion inhibition of bronze alloy B66 by 4-amino-3-methyl-1,2,4-triazole-5-thione in 3 per cent NaCl solution

2014 ◽  
Vol 61 (5) ◽  
pp. 281-286 ◽  
Author(s):  
Driss Chebabe ◽  
Ahmed Dermaj ◽  
Hamid Erramli ◽  
Najat Hajjaji
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Corrosion Inhibitor ◽  
Surface Analysis ◽  
Potentiodynamic Polarization ◽  
Inhibition Efficiency ◽  
Nacl Solution ◽  
Bronze Alloy ◽  
Content Type ◽  
Scanning Electron

Purpose – The purpose of this study is to study corrosion inhibition of Bronze alloy B66 by 4-amino-3-methyl-1,2,4-triazole-5-thione (MTSNH) in 3 per cent NaCl solution. Archaeological bronze artefacts often are stored or displayed in uncontrolled conditions and may suffer from dangerous active corrosion processes that can lead to their destruction. The most dangerous form of archaeological bronze degradation is due to a cyclic reaction that involves copper from the pure alloy and chlorine as a pathogenic agent. A protection treatment can be used to protect them from the corrosion environment and stabilise them to avoid further degradation during exhibition or storage. Starting from its initial assessment as a corrosion inhibitor for pure copper, nowadays benzotriazole (BTA) is in widespread use for the conservation of copper-based artefacts, but unfortunately, BTA is toxic and a suspected carcinogen. The development of new and safe protection systems would offer a choice of alternative products to conservation-restoration professionals for the effective and safe stabilization and protection of metal artefacts. In this investigation, a new organic compound, namely, MTSNH, was synthesized, characterized and tested as a corrosion inhibitor for Bronze B66 (similar to archaeological bronze) in 3 per cent NaCl solution using potentiodynamic polarization studies and electrochemical impedance spectroscopy (EIS) at room temperature. It has been observed from the corrosion rate that the inhibition efficiency increased with increasing concentration of MTSNH. Potentiodynamic polarisation results revealed that the compound acted as a mixed-type inhibitor. Impedance studies indicated that protection occurs through adsorption of the inhibitor on the metal surface, with important modification to the mechanism of corrosion. Surface analysis was carried out using scanning electron microscopy scanning electron microscopy (SEM)/energy dispersive spectrometry (EDX) techniques to verify the electrochemical results. Design/methodology/approach – The inhibition efficiency of MTSNH is investigated by potentiodynamic polarization, EIS and surface analysis. Findings – The synthesized MTSNH act a good inhibitor in 3 per cent NaCl and inhibition efficiency increases with inhibitor concentration. Polarisation curves showed that the inhibitor is mixed. The EIS measurements showed that the inhibitor acted throughout the formation of film at the bronze surface. The surface analysis confirms this result. Originality/value – The adsorption of the MTSNH on the metal surface can markedly change the corrosion resisting property of metal. Therefore, the study of the relation between adsorption and corrosion inhibiting is of a great importance.

Surface Analysis Of Liquid Chromatography Column Packings Used In The Separation Of Asphaltenes By Scanning Electron Microscopy

2012 ◽  
Vol 18 (S2) ◽  
pp. 1784-1785
Author(s):  
T.N. Loegel ◽  
L.B. Mehdi ◽  
N.D. Danielson
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Liquid Chromatography ◽  
Surface Analysis ◽  
Chromatography Column ◽  
Column Packings ◽  
Scanning Electron

Extended abstract of a paper presented at Microscopy and Microanalysis 2012 in Phoenix, Arizona, USA, July 29 – August 2, 2012.

Pathogenesis of Human Hair Defects

1974 ◽  
Vol 32 ◽  
pp. 12-13
Author(s):  
P.S. Porter ◽  
T. Aoyagi ◽  
R. Matta
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Human Hair ◽  
Standard Techniques ◽  
Scanning Electron

Using standard techniques of scanning electron microscopy (SEM), over 1000 human hair defects have been studied. In several of the defects, the pathogenesis of the abnormality has been clarified using these techniques. It is the purpose of this paper to present several distinct morphologic abnormalities of hair and to discuss their pathogenesis as elucidated through techniques of scanning electron microscopy.

Sign in / Sign up

Export Citation Format

Share Document