Results 11 to 20 of about 190,952 (277)
Surfactant-Assisted in situ Chemical Etching for the General Synthesis of ZnO Nanotubes Array [PDF]
Nanoscale Research Letters, 2010 In this paper, a general low-cost and substrate-independent chemical etching strategy is demonstrated for the synthesis of ZnO nanotubes array. During the chemical etching, the nanotubes array inherits many features from the preformed nanorods array ...
Wang Hongqiang +6 more
doaj +3 more sources
Structuring of sapphire by laser-assisted methods, ion-beam implantation, and chemical wet etching [PDF]
, 2002 Sapphire is an attractive material for micro- and opto-electronic systems applications because of its excellent mechanical and chemical properties. However, because of its hardness, sapphire is difficult to machine.
Buchal, C. +3 more
core +18 more sources
Results in Physics, 2019 A simple and low-cost method using the combination of metal-assisted chemical etching (MacEtch) and anisotropic wet etching was performed to fabricate anti-reflection inverted pyramidal cavities on dendrite-like textured silicon substrates.
Yu-Keng Lin +2 more
doaj +1 more source
Basic elements for photodeposited high Tc thin film devices [PDF]
, 1992 Flat films, high quality insulating layers and adequately superconducting via contacts are basic elements for high Tc device fabrication. We studied the influence of the process parameters of laser deposition on the occurrence of droplets and outgrowths ...
Flokstra, J. +2 more
core +3 more sources
Decreasing Frequency Splits of Hemispherical Resonators by Chemical Etching
Sensors, 2018 The hemispherical resonator gyroscope (HRG) has attracted the interest of the world inertial navigation community because of its exceptional performance, ultra-high reliability and its potential to be miniaturized.
Yuting Wang +5 more
doaj +1 more source
Improvement of photocatalytic activity of brookite titanium dioxide nanorods by surface modification using chemical etching [PDF]
, 2012 Surface morphology of brookite titanium dioxide (TiO2) nanorods was modified by chemical etching with aqueous hydrogen (H2O2)–ammonia (NH3) or sulfuric acid (H2SO4) solution.
Menendez-Floresa Victor M. +3 more
core +2 more sources
Metals, 2019 In order to enhance the surface friction performance of the aluminum-silicon (Al-Si) alloy cylinder liner, chemical etching and laser finishing techniques are applied to improve the friction performance.
Fengming Du +6 more
doaj +1 more source
Journal of Materials Research and Technology, 2020 Liquation cracks are generally regarded as thermal defects in various materials, e.g. in steels and nickel-based alloys. However, direct observation of microstructure with crack-like morphology that may be revealed by chemical etching or electrochemical ...
Kai Ding +6 more
doaj +1 more source
Enhancement of Porous Silicon Formation by Using Ultrasonic Vibrations [PDF]
Engineering and Technology Journal, 2012 Anodic electrochemical etching enhanced by ultrasonically is developed to fabricate luminescent porous silicon (PS) material. The samples prepared by the new etching method exhibit superior characteristics to those prepared by conventional direct current
Ali H. Al-Hamdani
doaj +1 more source
Wet chemical thinning of molybdenum disulfide down to its monolayer
APL Materials, 2014 We report on the preparation of mono- and bi-layer molybdenum disulfide (MoS2) from a bulk crystal by facile wet chemical etching. We show that concentrated nitric acid (HNO3) effectively etches thin MoS2 crystals from their edges via formation of MoO3 ...
Kiran Kumar Amara +4 more
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