Results 51 to 60 of about 51,152 (304)

Photo-electrochemical analysis of the passive film on zircaloy-4

open access: yes, 2001
The structure and composition of passive film formed on Zircaloy-4 in pH 8.5 buffer solution was examined qualitatively through the photo-electrochemical analysis of the film.
Lee, Sung-Joon   +7 more
core   +1 more source

Active Corrosion Protection of Sintered AA7075 Aluminum Alloy via Mn Powder Addition

open access: yesAdvanced Engineering Materials, EarlyView.
AA7075 containing Mn‐rich particles is fabricated via spark plasma sintering using AA7075 and Mn powders. Corrosion resistance is evaluated through dip‐and‐dry tests using 0.1 M NaCl (pH 6.0), and mass loss decreases with increasing Mn addition. Mn‐rich particles function as a source of Mn ions, and formation of Mn‐accumulation films on Cu‐containing ...
Ko Ebina, Masashi Nishimoto, Izumi Muto
wiley   +1 more source

Biocompatibility of titanium from the viewpoint of its surface

open access: yesScience and Technology of Advanced Materials, 2022
Among metals, Ti and majority of its alloys exhibit excellent biocompatibility or tissue compatibility. Although their high corrosion resistance is a factor in the biocompatibility of Ti and Ti alloys, it is clear that other factors exist. In this review,
Takao Hanawa
doaj   +1 more source

Stability Analysis of a Turbocharger Rotor System Supported on Floating Ring Bearings

open access: yes, 2012
The stability of a turbocharger rotor is governed by the coupling of rotor dynamics and fluid dynamics because the high speed rotor system is supported on a pair of hydrodynamic floating ring bearings which comprise of inner and outer fluid films in ...
Gu, Fengshou   +9 more
core   +1 more source

Printed Integrated Logic Circuits Based on Chitosan‐Gated Organic Transistors for Future Edible Systems

open access: yesAdvanced Functional Materials, EarlyView.
Edible electronics needs integrated logic circuits for computation and control. This work presents a potentially edible printed chitosan‐gated transistor with a design optimized for integration in circuits. Its implementation in integrated logic gates and circuits operating at low voltage (0.7 V) is demonstrated, as well as the compatibility with an ...
Giulia Coco   +8 more
wiley   +1 more source

Dynamic analysis of chloride-induced passive film breakdown mechanisms in carbon steel within simulated concrete pore solution

open access: yesCase Studies in Construction Materials
The erosion of chloride ions is a significant factor that causes the fracture of the passive film of steel bars in reinforced concrete. To investigate the time-dependent growth and fracture mechanism of the passive film on steel bars under the influence ...
Ye Tian   +12 more
doaj   +1 more source

Semiconducting behavior of the anodically passive films formed on AZ31B alloy

open access: yesJournal of Magnesium and Alloys, 2014
This work includes determination of the semiconductor character and estimation of the dopant levels in the passive film formed on AZ31B alloy in 0.01 M NaOH, as well as the estimation of the passive film thickness as a function of the film formation ...
A. Fattah-alhosseini, M. Sabaghi Joni
doaj   +1 more source

Study on Electrochemical Corrosion Behavior of 13Cr Steel (0Cr13Ni2P) in Saturated CO2 Solution

open access: yesInternational Journal of Electrochemical Science, 2021
A type of 13Cr Steel (0Cr13Ni2P) was selected in this paper as a research object. The corrosion behavior of this 13Cr steel in the CO2 environment were studied by means of electrochemical testing technology, and the effects of Cl-, temperature and other ...
Qiu Li Zhang   +4 more
doaj   +1 more source

Thin Film Decoupling Circuits, Making Use of a Three-dimensional Integration of Thin Film Passive Components

open access: yes, 1999
In electronic circuits besides active devices a major part of the components are discrete passive components such as capacitors, resistors and inductors. Especially in the telecommunication circuits, miniaturisation is a major issue.
P. van Oppen   +5 more
core   +1 more source

Properties of the Passive Film on Alloy 22 in Chloride Solutions Obtained by Electrochemical Impedance [PDF]

open access: yes, 2011
Impedance measurements were performed for alloy 22 in the passive and transpassive range, in 1 M NaCl at 90°C. A RΩ-(R//CPE) circuit model was applied in the full passive range, where R was the film resistance. This model also applied for a wide range of
Ricardo M. Carranza   +3 more
core   +1 more source

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