scholarly journals Polyamide Coating as a Potential Protective Layer Against Corrosion of Iron Artifacts

2021 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
Mohamed Megahed ◽  
Mohamed Abdel Bar ◽  
El said Abouelez ◽  
Ashraf El-Shamy
Keyword(s):  
Protective Layer ◽  
Iron Artifacts ◽  
Corrosion Of Iron

On the akaganéite crystal structure, phase transformations and possible role in post-excavational corrosion of iron artifacts

2003 ◽  
Vol 45 (11) ◽  
pp. 2563-2575 ◽  
Author(s):  
Kenny Ståhl ◽  
Kurt Nielsen ◽  
Jianzhong Jiang ◽  
Bente Lebech ◽  
Jonathan C. Hanson ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Phase Transformations ◽  
Structure Phase ◽  
Iron Artifacts ◽  
Corrosion Of Iron

Development of imaging plate for a TEM and its characteristics

1989 ◽  
Vol 47 ◽  
pp. 100-101
Author(s):  
N. Mori ◽  
T. Oikawa ◽  
Y. Harada ◽  
J. Miyahara ◽  
T. Matsuo
Keyword(s):  
Dynamic Range ◽  
Protective Layer ◽  
High Sensitivity ◽  
Imaging Plate ◽  
Phosphor Layer ◽  
Imaging Device ◽  
X Ray Imaging ◽  
New Type ◽  
Basic Characteristics ◽  
Reading System

The Imaging Plate (IP) is a new type imaging device, which was developed for diagnostic x ray imaging. We have reported that usage of the IP for a TEM has many merits; those are high sensitivity, wide dynamic range, and good linearity. However in the previous report the reading system was prototype drum-type-scanner, and IP was also experimentally made, which phosphor layer was 50μm thick with no protective layer. So special care was needed to handle them, and they were used only to make sure the basic characteristics. In this article we report the result of newly developed reading, printing system and high resolution IP for practical use. We mainly discuss the characteristics of the IP here. (Precise performance concerned with the reader and other system are reported in the other article.)Fig.1 shows the schematic cross section of the IP. The IP consists of three parts; protective layer, phosphor layer and support.

Study on preferred crystal orientations of Mg-Zr-O composite protective layer in AC-PDP

2006 ◽  
Vol 36 (2) ◽  
pp. 111-117 ◽  
Author(s):  
G. Bingang ◽  
L. Chunliang ◽  
S. Zhongxiao ◽  
L. Liu ◽  
F. Yufeng ◽  
...  
Keyword(s):  
Protective Layer ◽  
Crystal Orientations

Inhibition of the acid corrosion of iron with new pyrazole derivatives

1996 ◽  
Vol 93 ◽  
pp. 1262-1280 ◽  
Author(s):  
A Aouniti ◽  
B Hammouti ◽  
M Brighli ◽  
S Kertit ◽  
F Berhili ◽  
...  
Keyword(s):  
Acid Corrosion ◽  
Pyrazole Derivatives ◽  
Corrosion Of Iron

New atmospheric corrosion inhibitor of aluminum alloy D16

2020 ◽  
pp. 38-46
Author(s):  
A.M. Semiletov ◽  
◽  
Yu.B. Makarychev ◽  
A.A. Chirkunov ◽  
L.P. Kazansky ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Corrosion Inhibitor ◽  
Atmospheric Corrosion ◽  
Protective Layer ◽  
Humid Atmosphere ◽  
Water Condensation ◽  
Equimolar Composition ◽  
Aluminum Hydroxides ◽  
Daily Water ◽  
20 Nm

The application of mixed corrosion inhibitor (CI), which is an equimolar composition of oleoyl sarcosinate (SOS) and sodium flufenamate (SFF), for protection of D16 aluminum alloy from atmospheric corrosion has been studied. The polarization measurements used to assess the effectiveness of preliminary passivation of the alloy with solutions of SOS, SFF and their composition showed significant advantages of mixed CI. The XPS method was used to study features of CI adsorption on the surface of D16 alloy. It has been established that upon adsorption of SOS and SFF separately a monolayer is formed, firmly bonded to the alloy surface, thickness of which is not exceeding 2.6—3.2 nm. After the joint adsorption of these CI, the layer thickness reaches 12—20 nm. The composition of this layer includes a considerable amount of Al3+ ions (~20%) related to their compounds with SFF and SOS, as well as to aluminum hydroxides. A possible mechanism for the formation of such a protective layer is proposed. The results of corrosion tests in a humid atmosphere with daily water condensation on samples of D16 alloy confirmed the high protective ability of the mixed CI film.

Application of Automated FIB for TEM Sample Preparation in Semiconductor Failure Analysis

2014 ◽  
Author(s):  
Jie Zhu ◽  
Soo Sien Seah ◽  
Irene Tee ◽  
Bing Hai Liu ◽  
Eddie Er ◽  
...  
Keyword(s):  
Sample Preparation ◽  
Success Rate ◽  
Protective Layer ◽  
Factors Affecting ◽  
Dual Beam ◽  
Lamella Thickness ◽  
Surface Patterns ◽  
Working Parameters ◽  
Practical Factors ◽  
High Flexibility

Abstract In this paper, we describe automated FIB for TEM sample preparation using iFast software on a Helios 450HP dual-beam system. A robust iFast automation recipe needs to consider as many variables as possible in order to ensure consistent sample quality and high success rate. Variations mainly come from samples of different materials, structures, surface patterns, surface topography and surface charging. The recipe also needs to be user-friendly and provide high flexibility by allowing users to choose preferable working parameters for specific types of samples, such as: grounding, protective layer coating, milling steps, and final TEM lamella thickness/width. In addition to the iFast recipe, other practical factors affecting automation success rate are also discussed and highlighted.

Sign in / Sign up

Export Citation Format

Share Document