Results 11 to 20 of about 38,954 (267)

AlGaN Nanowires for Ultraviolet Light-Emitting: Recent Progress, Challenges, and Prospects

open access: yesMicromachines, 2020
In this paper, we discuss the recent progress made in aluminum gallium nitride (AlGaN) nanowire ultraviolet (UV) light-emitting diodes (LEDs). The AlGaN nanowires used for such LED devices are mainly grown by molecular beam epitaxy (MBE) and metalorganic
Songrui Zhao   +3 more
doaj   +1 more source

3D FEM Analysis of High-Frequency AlN-Based PMUT Arrays on Cavity SOI

open access: yesSensors, 2019
This paper presents three-dimensional (3D) models of high-frequency piezoelectric micromachined ultrasonic transducers (PMUTs) based on the finite element method (FEM).
Wenjuan Liu   +11 more
doaj   +1 more source

PULSED LASER DEPOSITION OF ALUMINUM NITRIDE THIN FILMS ONTO SAPPHIRE SUBSTRATES [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2020
Subject of Research.The paper presents experimental study results of surface morphology and structural and optical properties of sapphire AlN films obtained by pulsed laser spraying. Method.
Oleg V. Devitsky   +2 more
doaj   +1 more source

Fatigue reliability evaluation of aluminium alloy coated with Diamond-Like Carbon/AlN hybrid coatings by UBMS

open access: yesNihon Kikai Gakkai ronbunshu, 2016
In our previous study, it was found that the wear life of the DLC/AlN hybrid film compared with a DLC film deposited directly onto Al-alloy could be improved by controlling the hardness of the AlN intermediate layer film.
Masashi NAKAMURA, Yuki TAKAMORI
doaj   +1 more source

Improvement of friction and wear characteristics of aluminium alloy by Diamond-Like Carbon/AlCrN/AlN hybrid coatings deposited by UBMS

open access: yesNihon Kikai Gakkai ronbunshu, 2019
In our previous study, it was found that the wear life of the DLC/AlN multilayer hybrid coating could be improved by approximately 80 times of that of a DLC film deposited directly onto an aluminum (Al)-alloy.
Masashi NAKAMURA, Tsutomu ISHII
doaj   +1 more source

Structural Evolution of AlN Nanoclusters and the Elemental Chemisorption Characteristics: Atomistic Insight

open access: yesNanomaterials, 2019
A theoretical insight into the structural evolution of AlN atomic clusters and the chemisorption of several common alloying elements on a large cluster has been performed in the framework of state-of-the-art density functional theory calculations.
Xi Nie   +6 more
doaj   +1 more source

INVESTIGATION OF THE CHANNEL-FORM EFFECT ON THE FORMATION PROCESSES OF AND NANOCLUSTERS IN PLASMA WHEN ALUMINUM TARGET IS SUBJECTED TO SERIES OF DOUBLE LASER PULSES IN AIR

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2019
The microchannel-form effect on the formation of AlO and AlN in the laser plasma has been studied when the surface of a target of D16 Т aluminum alloy was subjected to series of sequential focused double laser pulses in air.
K. Bazzal   +3 more
doaj   +1 more source

SPECTRAL STUDIES OF THE Al2O3 AND AlN NANOPOWDER FORMATION EXPOSED ALUMINUM BY A SERIES OF TWIN LASER PULSES IN THE AIR ATMOSPHERE

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2020
A study of the Al2O3 and AlN nanopowder formation under the influence of twin laser pulses with an energy of 52 mJ and between the pulse interval of 10 microseconds on an aluminum target placed in a closed glass rectangular box, depending on the number ...
Kh. Bazzal   +5 more
doaj   +1 more source

Témoignage de guerre : Démocratie, discipline révolutionnaire et grève des 8 jours.

open access: yesRevue d'Histoire Méditerranéenne, 2023
Quelques jours avant l’ouverture du débat à l’O.N.U. sur la question algérienne, le CCE décide de lancer une grève de 8 jours sur le territoire algérien. Cette action vient au moment où la Révolution traverse « une phase de grande exaltation ».
ZERARI Rabah dit commandant AZZEDINE
doaj  

Simple and Efficient AlN-Based Piezoelectric Energy Harvesters

open access: yesMicromachines, 2020
In this work, we demonstrate the simple fabrication process of AlN-based piezoelectric energy harvesters (PEH), which are made of cantilevers consisting of a multilayer ion beam-assisted deposition.
Imrich Gablech   +8 more
doaj   +1 more source

Home - About - Disclaimer - Privacy