Results 11 to 20 of about 55,413 (296)

High-Q-factor Al [subscript 2]O[subscript 3] micro-trench cavities integrated with silicon nitride waveguides on silicon [PDF]

open access: yes, 2020
We report on the design and performance of high-Q integrated optical micro-trench cavities on silicon. The microcavities are co-integrated with silicon nitride bus waveguides and fabricated using wafer-scale silicon-photonics-compatible processing steps.
Adam, Thomas N.   +8 more
core   +1 more source

INFLUENCE OF THERMAL ANNEALING ON THE STRUCTURE AND OPTICAL PROPERTIES OF THIN ALUMINUM NITRIDE FILMS ON SAPPHIRE

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2020
The results of an experimental study of the effect of thermal annealing on the structure, surface morphology and optical properties of thin films of aluminum nitride on sapphire are presented.
O.V. Devitsky   +3 more
doaj   +1 more source

Improvement of piezoresistance properties of silicon carbide ceramics through co-doping of aluminum nitride and nitrogen [PDF]

open access: yes, 2008
The piezoresistance coefficient was measured on co-doped silicon carbide ceramics. Evaluation samples of alpha-silicon carbide ceramics were first fabricated by glass capsule HIP method using powder mixture of silicon carbide and aluminum nitride with ...
Hayashi, Hidetaka   +2 more
core   +1 more source

Piezoelectric aluminum nitride resonator for oscillator [PDF]

open access: yesIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2009
This work investigates properties of the thin film elongation acoustic resonator (TFEAR) operating at megahertz frequencies in air. This resonator is composed of a piezoelectric layer of AlN sandwiched between 2 Al electrodes. TFEAR works in the extensional mode excited via AlN d31 piezoelectric coefficient. A 3D finite element method (3D-FEM) analysis
Mareschal, Olivier   +8 more
openaire   +4 more sources

Aluminum nitride–filled elastic silicone rubber composites for drag reduction

open access: yesAdvances in Mechanical Engineering, 2017
This study presents aluminum nitride/silicone rubber composite as a drag reduction material, inspired by the boundary heating drag reduction mechanism of dolphin skin. Aluminum nitride was added as a thermal conductive filler at weight fractions of 16.67,
Limei Tian   +5 more
doaj   +1 more source

Processes of salt slag recycling in aluminum production to obtain powder material with a high content of aluminum oxide phases

open access: yesЛитьë и металлургия, 2023
The processing of salt slags in aluminum production in order to obtain a powder material with a high content of aluminum oxide phases and the results of thermodynamic assessment of the hydrolysis reactions of aluminum carbide and nitride during the ...
B. M. Nemenenok   +4 more
doaj   +1 more source

Sustainable Improvements in Mechanical and Tribological Properties of AA2017-Aluminum Nitride Composites: A Comprehensive Investigation and Numerical Analysis [PDF]

open access: yesE3S Web of Conferences
An AA2017-aluminum nitride composite was created through stir casting, and its tribological properties, like hardness and wear rate were examined by varying the aluminum nitride content from 5% to 15%.
R Senthil, Vinayagam M.
doaj   +1 more source

Isoelectronic aluminum-doped gallium nitride alpha-voltaic cell with efficiency exceeding 4.5%

open access: yesCommunications Materials, 2023
Although alpha-voltaic cells have shown great potential in unattended miniaturized systems for compact, long-lifetime and independence of external energy input, the power conversion efficiency of state-of the-art alpha-voltaic cells is still much lower ...
Runlong Gao   +11 more
doaj   +1 more source

Ceramic Substrates for High-temperature Electronic Integration [PDF]

open access: yes, 2009
One of the most attractive ways to increase power handling capacity in power modules is to increase the operating temperature using wide-band-gap semiconductors.
A.V. Virkar   +15 more
core   +2 more sources

The Resource-Saving Technology of Aluminum Nitride Obtaining During Combustion of Aluminum Nanopowder in Air

open access: yesMATEC Web of Conferences, 2016
The resource-saving technology of aluminum nitride obtaining during the combustion of aluminum nanopowder in air has been analyzed in the article. The investigation of the crystal phases of aluminum nanopowder combustion products obtained under the ...
Ilyin Alexander   +2 more
doaj   +1 more source

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