Results 1 to 10 of about 76,955 (167)
Silicon flower structures by maskless plasma etching
Silicon nano/microstructures are widely utilized in the semiconductor industry, and plasma etching is the most prominent method for fabricating silicon nano/microstructures.
Geng Zhao +6 more
doaj +1 more source
In this paper, AlGaN/GaN high-electron-mobility transistors (HEMTs) with ohmic etching patterns (OEPs) “fabricated to improve device radio frequency (RF) performance for Ka-band applications” are reported.
Ming-Wen Lee +4 more
doaj +1 more source
Quantitative Description of Duplex Stainless Steels Microstructure Using Selective Etching
The properties of duplex stainless steels (DSSs) depend on the ferrite–austenite ratio, on the content of secondary phases and on the contamination with non-metallic inclusions. To assess the quality of DSSs, it is necessary to use an integrated approach
Aleksandr Sergeevich Fedorov +4 more
doaj +1 more source
CHANGES IN VALUES MEASURED WITH A LASER FLUORESCENCE SYSTEM FOR ENAMEL AND DENTIN ETHCED FOR DIFFERNT TIME INTERVALS - pilot study. [PDF]
Purpose: The aim of the presented in vitro study was to evaluate the effectiveness of the laser fluorescent device DIAGNOdent in measuring changes in the level of mineralization of intact enamel surfaces etched for different time intervals and intact ...
Radostina Anastasova +2 more
doaj +1 more source
The objective of this study was to improve the corrosion resistance of an A535 alloy by removing intermetallics on the alloy surface by alkaline etching to improve the morphologies and properties of the anodic film that was sealed with different sealants.
Suwaree Chankitmunkong +4 more
doaj +1 more source
Surface Porosity of Natural Diamond Crystals after the Catalytic Hydrogenation
The study of diamond surfaces is traditionally undertaken in geology and materials science. As a sample material, two natural diamond crystals of type Ia were selected, and their luminescence and nitrogen state was characterized.
Aleksei Chepurov +6 more
doaj +1 more source
Rapid fabrication of superhydrophobic high-silicon aluminum alloy surfaces with corrosion resistance
High-silicon aluminum alloy (high-Si Al alloy) usually used as the electronic packaging materials on the radar on ships have a susceptibility to corrosion, reducing the life of radar on ships. How to improve the corrosion-resistance ability of high-Si Al
Yankui Sun +7 more
doaj +1 more source
Hard-Templated Porous Niobia Films for Optical Sensing Applications
Porous Nb2O5 films obtained by a modified hard-template method were studied and their optical and sensing properties were optimized in order to find applications in chemo-optical sensing. Porous films were prepared by following three steps: liquid mixing
Venelin Pavlov +4 more
doaj +1 more source
MXene: Evolutions in Chemical Synthesis and Recent Advances in Applications
Two-dimensional materials have secured a novel area of research in material science after the emergence of graphene. Now, a new family of 2D material-MXene is gradually growing and making itsmark in this field of study.
Sayani Biswas, Prashant S. Alegaonkar
doaj +1 more source
Art exhibition review of Walter Sickert. Peindre et transgresser, at the Petit Palais, 14th October 2022-29th January 2023.
Olivier Sauvage
doaj +1 more source

