Results 131 to 140 of about 55,925 (298)

Influence of stoichiometry of aluminum nitride films composition on the dielectric response

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов
The effect of non-stoichiometry of thin single-crystal layers of aluminum nitride (AlN) on their structure and dielectric properties was investigated. Thin AlN layers were grown by chloride-hydride epitaxy on a silicon substrate with a nanoscale buffer ...
A.V. Solnyshkin, I.T. Zezyanov, O.N. Sergeeva, S.A. Kukushkin, M.V. Staritsyn, S.S. Sharofidinov, N.V. Sharenkova, S.V. Senkevich, I.P. Pronin   +8 more
doaj   +1 more source

Aluminum Nitride Out-of-Plane Piezoelectric MEMS Actuators. [PDF]

Micromachines (Basel), 2023
Rabih AAS, Kazemi M, Ménard M, Nabki F.
europepmc   +1 more source

Thin film thermocouples for high temperature measurement on ceramic materials [PDF]

Thin film thermocouples have been developed for use on metal parts in jet engines to 1000 C. However, advanced propulsion systems are being developed that will use ceramic materials and reach higher temperatures.
Holanda, Raymond
core   +1 more source

Impedance‐Matched High‐Overtone Thickness‐Shear Bulk Acoustic Resonators With Scalable Mode Volume

Advanced Science, EarlyView.
A bottom‐electrode‐free high‐overtone bulk acoustic resonator is achieved by lateral excitation of antisymmetric thickness‐shear modes on a lithium‐niobate‐on‐silicon platform. Planar electrode geometry eliminates conventional loading along the resonance path and confines acoustic energy within the electrode gap.
Zi‐Dong Zhang, Zhen‐Hui Qin, Yi‐Han He, Yun‐Fei Cheng, Hao Yan, Si‐Yuan Yu, Ming‐Hui Lu, Yan‐Feng Chen   +7 more
wiley   +1 more source

Fabrication of Densely Packed AlN Nanowires by a Chemical Conversion of Al₂O₃Nanowires Based on Porous Anodic Alumina Film

Nanoscale Research Letters, 2009
Porous alumina film on aluminum with gel-like pore wall was prepared by a two-step anodization of aluminum, and the corresponding gel-like porous film was etched in diluted NaOH solution to produce alumina nanowires in the form of densely packed ...
Wang Da-Jian, Yuan Zhi-Hao, Sun Shao-Qing, Duan Yue-Qin   +3 more
doaj   +1 more source

Improving impact resistance of ceramic materials by energy absorbing surface layers [PDF]

Energy absorbing surface layers were used to improve the impact resistance of silicon nitride and silicon carbide ceramics. Low elastic modulus materials were used.
Kirchner, H. P., Seretsky, J.
core   +1 more source

A Universal Approach to Enhancing Silicon Hot‐Carrier Photodetectors for CMOS‐Compatible SWIR Imaging

Advanced Science, EarlyView.
Silicon hot‐carrier photodetectors offer a CMOS‐compatible pathway for SWIR detection but suffer from intrinsically low quantum efficiency. Here, we introduce a quasi‐generalized antireflection coating (QARC) that universally enhances optical absorption and quantum efficiency, enabling the first CMOS‐compatible SWIR imaging with silicon hot‐carrier ...
Eui‐Hyoun Ryu, Hyun Woo Ko, Sunghyun Hwang, Nayeon Kim, Ji‐Hwan Son, Sunghyun Han, Paul Hongsuck Seo, Jisoo Hong, Sang‐Jun Kim, Seon Kyu Yoon, Min‐Chul Park, In‐Ho Lee   +11 more
wiley   +1 more source

Predicting and Rationalizing Piezoelectricity in Racemic Bioorganic Molecular Crystals

Angewandte Chemie, EarlyView.
Racemic molecular crystals, composed of equal mixtures of chiral enantiomeric components, are predicted to exhibit significant piezoelectric responses and favourable mechanical flexibility. This study identifies organic and bioorganic racemates as promising candidates for sustainable, lead‐free materials, enabling next‐generation applications in energy
Shubham Vishnoi, Sarah Guerin
wiley   +2 more sources

Development of mechanical wear ability on aluminum LM grade metal matrix composite reinforced with silicon carbide, magnesium nitride and gallium nitride particles

Materials Research Express
The superior mechanical and physical properties of aluminum metal matrix composites over the underlying Al alloy make them popular in a wide range of applications.
Velmurugan Govindan, Kathiresan Marimuthu, Sanjay Muralidharan, Karthik Shanmugam   +3 more
doaj   +1 more source

Monitoring of the Initial Stages of Diamond Growth on Aluminum Nitride Using In Situ Spectroscopic Ellipsometry. [PDF]

ACS Omega, 2023
Leigh W, Mandal S, Cuenca JA, Wallis D, Hinz AM, Oliver RA, Thomas ELH, Williams O.   +7 more
europepmc   +1 more source