Toward a Better Understanding of Dimensional Changes in Zircaloy-4: What is the Impact Induced by Hydrides and Oxide Layer?

2009 ◽  
pp. 594-594-18
Author(s):  
M. Blat-Yrieix ◽  
A. Ambard ◽  
F. Foct ◽  
A. Miquet ◽  
S. Beguin ◽  
...  
Keyword(s):  
Oxide Layer ◽  
Dimensional Changes ◽  
The Impact

Toward a Better Understanding of Dimensional Changes in Zircaloy-4: What is the Impact Induced by Hydrides and Oxide Layer?

2008 ◽  
Vol 5 (9) ◽  
pp. 101321 ◽  
Author(s):  
M. Blat-Yrieix ◽  
A. Ambard ◽  
F. Foct ◽  
A. Miquet ◽  
S. Beguin ◽  
...  
Keyword(s):  
Oxide Layer ◽  
Dimensional Changes ◽  
The Impact

scholarly journals Oxide inclusions in joints of aluminum alloys made by method of friction welding with mixing

2017 ◽  
Vol 2 (6) ◽  
pp. 3-13
Author(s):  
Виктор Овчинников ◽  
Viktor Ovchinnikov ◽  
Людмила Андреева ◽  
L Andreeva ◽  
Татьяна Любимова ◽  
...  
Keyword(s):  
Aluminum Alloys ◽  
Oxide Layer ◽  
Friction Welding ◽  
Strength Properties ◽  
Surface Oxide ◽  
Surface Oxide Layer ◽  
Test Results ◽  
Welding Arc ◽  
Metal Joint ◽  
The Impact

The paper reports the results of the impact of different edge surfaces preparation upon the structure of a metal joint and strength characteristics of welds made by a method a friction welding with mixing. As objects of investigations there were chosen plates made of aluminum alloys 1565, 1201, 1915, V-1341, 1420 and 1460 with 5 mm thick with different edge machining for welding: by stripping and degreasing; by machining, for surface oxide layer removal; by AC and DC welding arc for “growing” a surface oxide layer and the further analysis of its distribution in a metal joint after welding. In the paper there are shown the results of metal joint micro-structure investigation and also test results of welds for strength. Oxide distribution from the surface of edge surfaces inside joint metal and its influence upon strength properties of joints is analyzed.

The impact of oxide layer width variation on the performance parameters of FinFET

2021 ◽  
Author(s):  
Dhananjaya Tripathy ◽  
Prakash Kumar Rout ◽  
Debasish Nayak ◽  
Sudhansu Mohan Biswal ◽  
Nalini Singh
Keyword(s):  
Oxide Layer ◽  
Performance Parameters ◽  
Layer Width ◽  
The Impact

scholarly journals Mechanical properties of composite coatings of chromium and nanodiamonds on aluminum

2018 ◽  
Vol 145 ◽  
pp. 05012 ◽  
Author(s):  
Nelly Gidikova ◽  
Maciej Sulowski ◽  
Marcin Madej ◽  
Radoslav Valov ◽  
Vladimir Petkov
Keyword(s):  
Mechanical Properties ◽  
Oxide Layer ◽  
Composite Coatings ◽  
Aluminum Surface ◽  
Surface Oxide Layer ◽  
Weight Saving ◽  
Active Metal ◽  
Wear And Friction ◽  
Pre Treatment ◽  
The Impact

Aluminum offers engineers weight saving advantages in their product design. However, aluminum has poor wear and friction properties. In addition, the surface oxide layer of this chemically active metal, which gives it the corrosion resistance, makes it a very difficult metal to plate [1]. Specific pre-treatment must be applied to remove the oxide layer from the aluminum surface. The nanodiamond particles additionally facilitates the process of chromium deposition. The object of this study is to evaluate the impact of nanodiamonds on the mechanical properties of the chromium coating plated on

The Influence of Interface Silicon Oxide Layer on Photovoltaic Effect of Iron-Doped Amorphous Carbon Film/SiO2/Si Based Heterostructure

2012 ◽  
Vol 535-537 ◽  
pp. 2071-2074
Author(s):  
Rong Li ◽  
Xin Yu Tan ◽  
Yue Hua Huang ◽  
Yuan Liu ◽  
Qin Qin Liu
Keyword(s):  
Oxide Layer ◽  
Amorphous Carbon ◽  
Silicon Oxide ◽  
Photovoltaic Effect ◽  
Short Circuit ◽  
Carbon Film ◽  
Amorphous Carbon Film ◽  
Silicon Oxide Layer ◽  
Iron Doped ◽  
The Impact

This paper studied the impact of silicon oxide layer on photovoltaic characteristic of iron-doped amorphous carbon film/silicon heterojunction (a-C:Fe/Si). The results show that a native SiO2 layer on the silicon surface can provide a significant improvement of the a-C:Fe/Si devices’ photovoltaic performances, especially for the short circuit current and fill factor. This improvement partly may be attributed to the electron recombination process is suppressed and the interface is modified by the SiO2 film based on the open circuit voltage decay measurement.

scholarly journals Usage of Neural Network to Predict Aluminium Oxide Layer Thickness

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Peter Michal ◽  
Alena Vagaská ◽  
Miroslav Gombár ◽  
Ján Kmec ◽  
Emil Spišák ◽  
...  
Keyword(s):  
Oxalic Acid ◽  
Oxide Layer ◽  
Sulphuric Acid ◽  
Aluminium Oxide ◽  
Acid Amount ◽  
Marquardt Algorithm ◽  
Current Densities ◽  
Neural Unit ◽  
The Impact ◽  
Aluminium Oxide Layer

This paper shows an influence of chemical composition of used electrolyte, such as amount of sulphuric acid in electrolyte, amount of aluminium cations in electrolyte and amount of oxalic acid in electrolyte, and operating parameters of process of anodic oxidation of aluminium such as the temperature of electrolyte, anodizing time, and voltage applied during anodizing process. The paper shows the influence of those parameters on the resulting thickness of aluminium oxide layer. The impact of these variables is shown by using central composite design of experiment for six factors (amount of sulphuric acid, amount of oxalic acid, amount of aluminium cations, electrolyte temperature, anodizing time, and applied voltage) and by usage of the cubic neural unit with Levenberg-Marquardt algorithm during the results evaluation. The paper also deals with current densities of 1 A·dm−2and 3 A·dm−2for creating aluminium oxide layer.

A modelling approach on the impact of an oxide layer on the hydrogen permeation through iron membranes in the Devanathan-Stachurski cell

2018 ◽  
Vol 286 ◽  
pp. 139-147 ◽  
Author(s):  
L. Vecchi ◽  
D. Pecko ◽  
N. Van den Steen ◽  
M. Haile Mamme ◽  
B. Özdirik ◽  
...  
Keyword(s):  
Oxide Layer ◽  
Hydrogen Permeation ◽  
The Impact ◽  
Modelling Approach

scholarly journals Does Platelet-Rich Fibrin Decrease Dimensional Changes and Improve Postoperative Comfort in Post-Extraction Sockets? An Overview of Systematic Reviews

2020 ◽  
Vol 10 (17) ◽  
pp. 5750 ◽  
Author(s):  
Vittorio Moraschini ◽  
Carlos Fernando de Almeida Barros Mourão ◽  
Rafael Coutinho de Mello Machado ◽  
Jhonathan Raphaell Barros Nascimento ◽  
Kayvon Javid ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Bone Regeneration ◽  
Systematic Reviews ◽  
Selection Process ◽  
Soft Tissue Healing ◽  
Socket Preservation ◽  
Platelet Rich Fibrin ◽  
Dimensional Changes ◽  
Tissue Healing ◽  
The Impact

This overview aimed to evaluate the methods, quality, and outcomes of systematic reviews (SRs) conducted to investigate the effects of platelet-rich fibrin (PRF) in dental sockets on promoting bone regeneration and soft tissue healing and diminishing the incidence of pain, swelling, trismus, and alveolar osteitis after tooth extraction. An electronic search without date or language restriction was done in PubMed/MEDLINE, Cochrane, and Web of Science until March 2020. Eligibility criteria included SRs that assessed the effect of PRF for human alveolar socket preservation. The quality assessment of the included studies was performed using AMSTAR 2 guidelines. The protocol of this overview was recorded in PROSPERO under the number CRD42018089617. The search and selection process yielded 13 studies published between 2011 and 2018. The analysis of the studies showed inconclusive data for the effect of the PRF and the dimensional changes. There is no definitive evidence for the impact of using PRF alone on bone regeneration in post-extraction sockets. The use of PRF improves soft tissue healing and reduces pain, bleeding, and osteitis in post-extraction sockets.

Modelling descaling during hot rolling of steel

2004 ◽  
Vol 120 ◽  
pp. 209-215
Author(s):  
J. Ramírez-Cuellar ◽  
M. P. Guerrero-Mata ◽  
L. A. Leduc ◽  
R. Colás
Keyword(s):  
Growth Rate ◽  
High Pressure ◽  
Oxide Layer ◽  
Computer Model ◽  
Hot Rolling ◽  
Steel Surface ◽  
Temperature Dependent ◽  
Steel Slabs ◽  
Oxide Removal ◽  
The Impact

A computer model was developed to study the stresses that develop within the oxide formed on the surface of reheated steel slabs. The model considers that the crust grows during reheating following temperature dependent parabolic rates, and, as result of its thickness and growth rate, it will be stressed. Removal of this crust takes place by the impingement of water from high pressure jets installed in descaling units, which are located prior to deformation to avoid oxide imprint on the steel surface. Removal of the oxide layer depends on the velocity and amount of the water, as well as the force of the impact. A criterion based on these parameters can be established to determine the feasibility for oxide removal.

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