Results 41 to 50 of about 71,943 (315)

On-site weld quality assessment and qualification for stainless steels tanks

Eclética Química, 2022
Stainless steel tanks are frequently degraded by localized corrosion in bioprocess industries. A case study of 2101 duplex stainless steel tank allowed to apply a portable electrochemical microcell system (PassivityScan) for on-site weld inspection and ...
Luis Henrique Guilherme, Cecilio Sadao Fugivara, Assis Vicente Benedetti   +2 more
doaj   +1 more source

Electrochemical Analysis of Passivation Film Formation on Steel Rebar in Concrete

International Journal of Electrochemical Science, 2016
In this article, the passivation film of rebar was formed using cyclic voltammetry (CV) on reinforced concrete. The detail composition of the passivation film was analyzed by X-ray photoelectron spectroscopy.
Xiaoyu, Youjia Zhang, Na Qu, Xiaocheng Tang   +3 more
doaj   +1 more source

Preconditioning of Bioactive Glasses before Introduction to Static Cell Culture: What Is Really Necessary?

Methods and Protocols, 2020
Due to their high bioreactivity, the in-vitro analysis of bioactive glasses (BGs) can be challenging when it comes to maintaining a physiological pH.
Frederike Hohenbild, Marcela Arango-Ospina, Arash Moghaddam, Aldo R. Boccaccini, Fabian Westhauser   +4 more
doaj   +1 more source

Investigations of Sidewall Passivation Using the Sol-Gel Method on the Optoelectronic Performance for Blue InGaN Micro-LEDs

Micromachines, 2023
The optoelectronic effects of sidewall passivation on micro-light-emitting diodes (Micro-LEDs) were investigated using sol-gel chemical synthesis. Blue InGaN/GaN multi-quantum well (MQW) Micro-LEDs, ranging in size from 20 × 20 μm to 100 × 100 μm and ...
Wenjun Huang, Xiangyu Miao, Zhaojun Liu
doaj   +1 more source

AlN/GaN-based MOS-HEMT technology: processing and device results [PDF]

, 2011
Process development of AlN/GaN MOS-HEMTs is presented, along with issues and problems concerning the fabrication processes. The developed technology uses thermally grown Al₂O₃ as a gate dielectric and surface
Wasige, E., S. Taking, E. Wasige, D. MacFarlane, MacFarlane, D., Taking, S.   +5 more
core   +1 more source

Passivation of Ni-Cr and Ni-Cr-Mo Alloys in Low and High pH Sulfate Solutions

, 2023
International audienceThe kinetics of passive oxide film formation, its thickening, and composition on Ni-22Cr and Ni-22Cr-6Mo wt.% alloys were investigated selected anodic potentials.
Sur, Debashish, Ha, Hung, M, Scully, John, R, Lutton, Katie, Romanovskaia, Elena, Han, Junsoo   +5 more
core   +1 more source

Comparative experimental study on edge machining of carbide end milling cutter with different tool passivation methods

Jin'gangshi yu moliao moju gongcheng
A tool passivation method called the rotating abrasive flow passivation method is proposed as a means to improve tool performance and processing quality.
Ben WANG, Zhikai LONG, Yingxiao ZHENG, Wanwan SONG, Xiuyun ZHANG   +4 more
doaj   +3 more sources

Scalable fabrication of ultrahigh-conductivity SWCNT films via aredispersion method for photovoltaic/thermoelectric coupling systems

Nano Research
Photovoltaic/thermoelectric (PV/TE) coupling systems simultaneously cool solarcells and recover waste heat. Single-wall carbon nanotubes (SWCNTs) films areexpected to simultaneously exhibit their electrical conductivity, thermalconductivity, and ...
Xiaoyang Yuan, Dehua Yang, Xiaofei Yang, Xuan Chang, Donghui Zhang, Aiai Wang, Yiming Xu, Xueliang Yang, Jingxin Chen, Xuejian Li, Shuai Ma, Qing Gao, Shufang Wang, Huaping Liu, Jianhui Chen   +14 more
doaj   +1 more source

Corrosion behavior of VCrFeCoNi medium-entropy alloy in chloride solution

Journal of Materials Research and Technology, 2023
The present work investigates the corrosion properties and passivation layer of VCrFeCoNi medium-entropy alloy (V-MEA). The V-MEA exhibits the corrosion current density of ∼0.101 μA and corrosion potential of ∼ -0.336 V with a broad passivation region of
Sujung Son, Jaeik Kwak, Farahnaz Haftlang, Hyeonseok Kwon, Yong-Tae Kim, Sunghak Lee, Hyoung Seop Kim   +6 more
doaj   +1 more source

On ϱ-passivity

IFAC-PapersOnLine, 2023
We discuss passivity beyond continuous-time systems by highlighting several inconsistencies of the definition currently in use, for instance when applied to discrete-time systems, and by motivating the need for a new and more consistent notion. Hence, we propose a new definition, ϱ-passivity, that addresses the raised issues and that, as a result, is ...
Moreschini, Alessio, Bin, Michelangelo, Astolfi, Alessandro, Parisini, Thomas   +3 more
openaire   +1 more source