Effect of chemical etching and aging in boiling water on the corrosion resistance of nitinol wires with black oxide resulting from manufacturing process

2003 ◽  
Vol 66B (1) ◽  
pp. 331-340 ◽  
Author(s):  
S. Shabalovskaya ◽  
G. Rondelli ◽  
J. Anderegg ◽  
B. Simpson ◽  
S. Budko
Keyword(s):  
Corrosion Resistance ◽  
Manufacturing Process ◽  
Chemical Etching ◽  
Boiling Water ◽  
Black Oxide

scholarly journals The Art of Tungsten Etching in Semiconductor Chips

1999 ◽  
Vol 7 (2) ◽  
pp. 24-25
Author(s):  
Lisa Litz-Montanaro
Keyword(s):  
Manufacturing Process ◽  
Chemical Etching ◽  
Layer By Layer ◽  
Ion Milling ◽  
Etching Technique ◽  
Semiconductor Structures ◽  
Wet Chemical ◽  
Wet Chemical Etching ◽  
Semiconductor Chips ◽  
Complex Semiconductor

In the course of both physical and failure analysis of semiconductor chips (i.e., verifying what you actually deposited as a layer, vs, what caused the circuit to fail), it is essential to have appropriate deprocessing tools at your disposal in order to evaluate complex semiconductor structures, Deprocessing techniques are developed for each product manufactured and involve multi-step procedures that reveal the layer-by-layer secrets of the chip, These techniques require constant tweaking in duration and procedure as the manufacturing process imposes changes and as the architecture of the semiconductor changes. While there are many tools that assist in these analytical pursuits, such as RIE (reactive ion etching - a dry etching technique), ion milling, and microcleaving, the wet chemical etching of tungsten is sometimes more reproducible than RIE techniques.

scholarly journals Fabrication of superhydrophobic surface with corrosion resistance via cyclic chemical etching process on aluminum substrate

2021 ◽  
Author(s):  
Shuwei Lv ◽  
Xinming Zhang ◽  
Xiaodong Yang ◽  
Xianli Liu ◽  
Zhuojuan Yang ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Superhydrophobic Surface ◽  
Chemical Etching ◽  
Aluminum Surface ◽  
Corrosion Properties ◽  
Water Contact ◽  
Simple Method ◽  
Corrosion Resistance Property ◽  
Self Cleaning ◽  
Ideal Method

Abstract Aluminum (Al) is a metal material commonly used in industry, but its surface is easily corroded. The superhydrophobic surface has great self-cleaning and anti-corrosion properties, and it is an ideal method to construct a functional aluminum surface. Here, a simple method based on cyclic chemical etching was proposed to achieve the superhydrophobic Al surface with honeycomb structures. The surface of the sample etched eight times comprised micro/nano-scale honeycomb cavities, while exhibiting a water contact angle (WCA) of 135°. After being treated with an octadecanethiol (C18H38S) methanol solution, this sample demonstrated a WCA of 153.1°. A self-cleaning test was performed on the superhydrophobic Al surface, showing the excellent self-cleaning property. Finally, the electrochemical anti-corrosion test demonstrated that the above-mentioned superhydrophobic Al surface had great corrosion resistance property. Overall, this work has enriched the theory and technology for fabricating aluminum to achieve superhydrophobic.

scholarly journals KARAKTERISASI BAKSO KERING KAYA PROTEIN DARI “MARINE BEEF” DENGAN SUBSTITUSI TEPUNG SUWEG

Heuristic ◽  
2016 ◽  
Vol 12 (02) ◽  
Author(s):  
Richardus Widodo ◽  
Tiurma Wiliana Susanti Panjaitan ◽  
Istantyo Yuwono
Keyword(s):  
Physical Properties ◽  
Water Content ◽  
Manufacturing Process ◽  
Major Part ◽  
Meat Product ◽  
Sensory Properties ◽  
Boiling Water ◽  
Beef Products ◽  
Protein Rich

Marine beef is a meat product that has been fat dissolved so that the protein is a major part of the product. Marine beef dry form solid and hydrophilic, has a different performance from the base ingredients, but still contains nutrients according to the characteristics of the original. Weakness marine beef products is shaped in the form of flour so it does not allow for direct consumption. Suweg addition of flour mixture and emulsifier in the manufacturing process can serve as a regulator of the water content, hardness and adhesion to produce a final product that is more compact and high taste. This study aims to determine how optimal levels suweg flour and Na-CMC can be added to marine beef in order to obtain dry products based marine beef with the physical properties, the speed of rehydration and sensory properties that aroma, flavor and texture is good and acceptable to consumers. Treatment of dry meatballs are rich in protein from marine beef with the addition of flour suweg 15% and 1% Na-CMC is the best treatment with the shortest rehidrated pace with time 130 seconds at a temperature of boiling water and the scent of the most preferred by the panelists organoleptic test.Key word: marine beef, protein rich meatballs, suweg, Na-CMC

Improvement in Corrosion and Adhesion Resistance of a Al2O3-CeO2 Nanocomposite Coating on the Aluminum Alloy AA6061 via Surface Pretreatment

2015 ◽  
Vol 1120-1121 ◽  
pp. 677-688
Author(s):  
Yu Mei Han ◽  
Masoud Farzaneh
Keyword(s):  
Corrosion Resistance ◽  
Electrochemical Impedance ◽  
Contact Angle Measurement ◽  
Nanocomposite Coating ◽  
Angle Measurement ◽  
Boiling Water ◽  
Water Contact ◽  
Surface Pretreatment ◽  
Pretreatment Method ◽  
Koh Etching

In the present study, a surface pretreatment method consisting of KOH etching followed by oxide thickening in boiling water was used to improve the corrosion and adhesion resistance of the coating. The coating morphology on non-pretreated and pretreated Al substrates was characterized by means of scanning electron microscopy (SEM), atomic force microscopy (AFM) and water contact angle measurement. FT-IR spectra was obtained by Fourier transform infrared spectrometer. The corrosion resistance of the coating in 3.5 wt.% NaCl solution was evaluated with potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) techniques. The adhesion resistance of the coating was tested using ISO-2409 standard. Results show that KOH etching followed by oxide thickening in boiling water can effectively improves the corrosion resistance and durability of the coating. Besides, this surface pretreatment method can also improve significantly the adhesion resistance of the coating.

Fabrication of bioinspired, self-cleaning, anti-icing, superliquiphilic/phobic titanium using different pathways

2018 ◽  
Vol 377 (2138) ◽  
pp. 20180273 ◽  
Author(s):  
Dev Gurera ◽  
Bharat Bhushan
Keyword(s):  
Tensile Strength ◽  
Corrosion Resistance ◽  
Chemical Etching ◽  
Density Ratio ◽  
High Tensile Strength ◽  
Theme Issue ◽  
High Corrosion Resistance ◽  
High Corrosion ◽  
The Common ◽  
Self Cleaning

Titanium is an important material having a high tensile strength-to-density ratio and high corrosion resistance. It has found applications in the aerospace, marine, automotive and biomedical industries. In some of the applications, it is important to have it as a highly liquid repellent, anti-icing and self-cleaning. There have been several attempts to make titanium superliquiphobic. The common pathways include chemical etching and anodizing. However, important characteristics such as self-cleaning, anti-icing and durability have not been investigated. If any durability data were reported, it was poor. In the current study, various superliquiphilic/phobic surfaces were fabricated using three pathways which include chemical etching, anodizing and nanoparticle-binder coating. Each surface was characterized for wettability, self-cleaning, anti-icing, self-cleaning properties and durability. This article is part of the theme issue ‘Bioinspired materials and surfaces for green science and technology’.

Effects of On-Time on Microstructure and Corrosion Resistance of Pulse-Micro-Arc Oxidation Coatings Formed on Titanium Alloy

2013 ◽  
Vol 845 ◽  
pp. 735-739
Author(s):  
Yen Shou Chen ◽  
Yao Yang Tsai
Keyword(s):  
Corrosion Resistance ◽  
Titanium Alloy ◽  
Titanium Dioxide ◽  
Manufacturing Process ◽  
Titanium Substrate ◽  
New Method ◽  
Manufacturing Processes ◽  
Micro Arc Oxidation ◽  
Superior Level

Titanium dioxide (TiO2) has widely been applied in various fields of industry and technology. To improve the corrosion resistance of TiO2, many manufacturing processes have been researched. MAO is a new method of the TiO2 manufacturing process, of which titanium dioxide is coated on titanium substrate. According to electrochemistry researches, there is a more superior level for Pulse-MAO than traditional MAO. Parameters of on-time were significant in the Pulse-MAO process. The results show that on-time affects reactant shape, morphologies, thickness of films, and corrosion resistance. When on-time increased, the size of reactants was bigger and the shape of reactants was changed from sphere to lump. Meanwhile, the corrosion resistance and thickness of the film increased.

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