نتایج جستجو برای: passive film

تعداد نتایج: 160425  

2004
Anders Mellberg Mikael Malmkvist Jan Grahn Herbert Zirath

The basic active and passive elements for a 50 nm InGaAs-InAlAs-InP HEMT process with pseudomorphic InGaAs channel have been realized. The design and fabrication of 50 nm gate length InP HEMTs, MIM capacitors and thin film resistors have been studied. The integration of the components in a microstrip-based MMIC process has been proven by the successful demonstration of a wideband amplifier.

2011
B. Andrén Börje Andrén Kun Wang Kjell Brunnström Stephen Fuller

The two latest 3DTV types were tested; active shutter eye-glass type and passive eye-glass type with screen having film pattern retarder. Differences in vertical resolution, cross-talk and luminance were found. This difference in vertical resolution is visible for some types of objects. How this affects the image quality is unclear.

Journal: :Corrosion Science 2021

• With a spectroelectrochemical flow cell the communication of crevice enables studying solution chemistry in confinement. Degradation is compared to freely-exposed conditions by dissolution profiles and surface composition. Mo forms stable passive Mo(VI) layers under open corrosion, while it remains soluble conditions. Passive film properties nickel base alloys (NBAs) have been studied extensi...

2009
Jenifer S. Warner Richard P. Gangloff

Age-hardenable aluminum alloys used in aerospace structures are susceptible to environment assisted fatigue crack propagation (EFCP), limiting component durability and safety. The objective is to quantitatively understand EFCP and its inhibition for important aerospace alloys: 7075-T651 (Al-Zn-Cu-Mg), C433-T3 (Al-Cu-Mg), and C47A-T86 (AlCu-Li). EFCP is understood through the hydrogen embrittlem...

Journal: :Environmental science & technology 2016
Wenjian Lao Youwei Hong David Tsukada Keith A Maruya Jay Gan

Passive samplers for moderately hydrophobic organic compounds (MHOCs) (i.e., log Kow ranging from 2 to 5) are under-developed compared to those that target polar or strongly hydrophobic compounds. The goal of this study was to identify a suitable polymer and develop a robust and sensitive film-based passive sampler for MHOCs in aquatic systems. Poly(methyl methacrylate) (PMMA) exhibited the hig...

Journal: :Metals 2022

Tribocorrosion behaviours of nickel (Ni) and niobium (Nb) in sodium sulfate (Na2SO4) solution under potentiodynamic potentiostatic conditions were studied. Under the condition, passivation was early broken, accompanied by a sharp increase frictional coefficient on Nb. The current more fluctuant, larger material loss appeared at higher potential condition. However, these phenomena did not occur ...

Journal: :Journal of the Japan Society of Powder and Powder Metallurgy 1990

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