Results 41 to 50 of about 3,947,983 (315)

An attempt to estimate liquid film thickness adhered on wall surface using ultrasonic method

Nihon Kikai Gakkai ronbunshu
In order to estimate the thickness of adhered thin liquid film on lubricating surface using ultrasonic method, a synthetic wave of reflected waves at the solid-liquid interface and multiple reflected waves in the thin liquid film was calculated and the ...
Sosho INAGAKI, Yudai HARA, Akitoshi TAKEUCHI   +2 more
doaj   +1 more source

Effect of Thickness on the Structural Properties of Tellurium Film Prepared by Thermal Evaporation [PDF]

Journal of Nanostructures, 2013
In this research, tellurium (Te) film with thicknesses of 100-250 nm were deposited on ceramic substrates by thermal evaporation at 373 K. The thickness of the film was determined by Rutherford backscattering spectroscopy.
M. Manouchehrian, M. M. Larijani, M. A. Moghri Moazzen   +2 more
doaj   +1 more source

Study on Tribological Characteristics of Textured Surface under Convergent Oil Film Gap

Lubricants, 2022
Under the condition of convergence, a textured non-parallel 2D slider bearing model was established, and the tribological properties of textured surface under the convergence gap were numerically studied with the load-carrying capacity as an indicator ...
Guangyao Bei, Chenbo Ma, Xilong Wang, Jianjun Sun, Xingya Ni   +4 more
doaj   +1 more source

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

Advanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti, Finn‐Lennard Janthur, Selina Raumel, Sascha Jan Zimmermann, Sarah Seffer, René Gustus, Sebastian Herbst, Marc C. Wurz, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Florian Nürnberger   +11 more
wiley   +1 more source

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

Advanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin, Lienhard Wegewitz, René Gustus, Henning Wiche, Wolfgang Maus‐Friedrichs   +4 more
wiley   +1 more source

Piezoresistive Monitoring of Carbon Nanomaterial‐Reinforced Epoxy Composites Under Cyclic and Fatigue Loading: A Review

Advanced Engineering Materials, EarlyView.
Carbon nanomaterial‐reinforced epoxy composites exhibit pronounced piezoresistive behavior, enabling intrinsic damage sensing under cyclic and fatigue loading. This review critically compares carbon nanotube and graphene systems, correlating filler content, percolation threshold, and gauge factor with sensing stability and damage evolution.
J. M. Parente, J. Nunes‐Pereira, A. P. Silva, P. N. B. Reis   +3 more
wiley   +1 more source

Grease Film Behavior in Ball Bearings

Lubricants
To the film thicknesses of grease-lubricated ball bearings, the viscosity of the base oil is considered in the Elastohydrodynamic Lubrication (EHL) equations. For very low speeds, the grease film thickness is much larger than the calculated base oil film
Denis Cojocaru, Gelu Ianuș, Vlad Cârlescu, Bogdan Chiriac, Dumitru Olaru   +4 more
doaj   +1 more source

Thickness Dependence of Ferroelectric and Optical Properties in Pb(Zr_0.53Ti_0.47)O₃ Thin Films

Sensors, 2019
As a promising functional material, ferroelectric Pb(ZrxTi1−x)O3 (PZT) are widely used in many optical and electronic devices. Remarkably, as the film thickness decreases, the materials’ properties deviate gradually from those of solid ...
Jian He, Fen Li, Xi Chen, Shuo Qian, Wenping Geng, Kaixi Bi, Jiliang Mu, Xiaojuan Hou, Xiujian Chou   +8 more
doaj   +1 more source

Nanoindentation Criteria for Combinatorial Thin Film Libraries

Advanced Engineering Materials, EarlyView.
Thin‐film material libraries are compositional spreads used for screening composition‐structure‐property relationships. Nanoindentation is often used to characterize mechanical behavior across these systems, however variations in methodology are widespread.
Andre Bohn, Adie Alwen, Andrea M. Hodge
wiley   +1 more source

3D‐Printed Giant Magnetoresistive (GMR) Sensors Based on Self Compliant Springs

Advanced Engineering Materials, EarlyView.
This work explores 3D‐printed GMR sensors utilizing self‐compliant spring structures and conductive PLA composites. By optimizing arm width, we achieved high piezoresistive (0.34%/mm) and magnetoresistive (0.77%/mT) sensitivities. Demonstrated through Bluetooth‐integrated pressure and magnetic position sensing, these full printed low‐cost, customizable
Josu Fernández Maestu, Nelson Pereira, Javier Vicente, Carmen Rial Tubio, Senentxu Lanceros‐Méndez   +4 more
wiley   +1 more source