Results 81 to 90 of about 1,439,160 (239)

Contact Angle Measurement [PDF]

open access: yes, 2015
The Contact angle, where a liquid/vapor interface meets a solid surface[wiki], has been widely used to measure the wettability of a surface in physics and chemistry.
Liffiton, Faculty Advisor, Mark   +1 more
core   +1 more source

Assessing Altered Coating Adhesion on Plasma‐Deoxidized Surfaces Under Oxygen‐Free Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates the effectiveness of atmospheric pressure plasma pretreatment in modifying silicon and stainless steel surfaces to improve adhesion. Argon‐hydrogen plasma increases surface roughness and improves adhesion strength, whereas pure argon results in smoother surfaces and structural changes.
Selina Raumel   +6 more
wiley   +1 more source

行星滚柱丝杠副轴向弹性变形的有限元分析

open access: yesJixie chuandong, 2012
By taking a planetary roller screw as the research object,the influence of contact angle and helix angle on axial elastic deformation are considered,and the axial elastic deformation of screw pair are calculated with finite element method.It is concluded
马尚君, 刘更, 佟瑞庭, 张晓彩
doaj  

Hydrophilicity and Hydrophobicity at the Nanoscale: A Theoretical Study on Two-Dimensional Cylindrical Droplets with Disjoining Pressure Effects

open access: yesLiquids
Hydrophobicity and hydrophilicity are incompatible in the sense that a single substrate cannot exhibit both characteristics simultaneously. On a hydrophobic substrate, for example, a macroscopic droplet always exhibits a morphology with a contact angle ...
Masao Iwamatsu
doaj   +1 more source

CONTACT AND ROTATION ANALYSIS OF SINGLE ROLLER ENVELOPING FACE WORM DRIVE

open access: yesJixie qiangdu, 2021
Based on the meshing theory of single roller enveloping end face worm drive,the distribution of contact line and the length of contact line on the cylindrical surface of the drive pair,and the self-rotation angle of the roller,and the self-rotation angle
LIAO HongHui   +3 more
doaj  

Investigation of Oxygen‐Free Wetting Behavior of Aluminum on Copper via Molecular Dynamics Simulations and Experiments

open access: yesAdvanced Engineering Materials, EarlyView.
The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu   +8 more
wiley   +1 more source

Noncommutative integrability and action-angle variables in contact geometry [PDF]

open access: yes, 2012
We introduce a notion of the noncommutative integrability within a framework of contact geometry.Comment: 22 pages,1 figure, Theorem 5 slightly ...
Jovanovic, Bozidar
core  

Three-gradient regular solution model for simple liquids wetting complex surface topologies

open access: yesBeilstein Journal of Nanotechnology, 2016
We use regular solution theory and implement a three-gradient model for a liquid/vapour system in contact with a complex surface topology to study the shape of a liquid drop in advancing and receding wetting scenarios.
Sabine Akerboom   +2 more
doaj   +1 more source

Dynamic Testing of Cold Gas Sprayed Bipolar Plates–Porous Transport Layer Coating System in Proton Exchange Membrane Water Electrolysis

open access: yesAdvanced Engineering Materials, EarlyView.
Through direct application of porous transport layer (PTL) on the bipolar plate (BPP) with thermal spraying, the interfacial contact resistance is improved. With the cold gas sprayed BPP–PTL coating system, a proton exchange membrane water electrolysis cell with a cell voltage of Ucell = 1.9 V can be operated up to i = 2.5 A/cm2 in a dynamic mode ...
Kirsten Bobzin   +5 more
wiley   +1 more source

Corrosion and Process Analysis of a Preoxidized MgO Recyclate‐Based Cermet Anode in Laboratory‐Scale Na‐Cryolite Molten Salt Electrolysis of Aluminum at 1000°C

open access: yesAdvanced Engineering Materials, EarlyView.
EDX elemental map of the pre‐oxidized MgO–steel cermet anode cross section after electrolysis. The development of inert anodes for aluminum electrolysis remains challenging due to the high corrosivity of cryolite‐based melts at 950°C–1000°C. This study investigates the corrosion and process behavior of a carbon‐free MgO–steel cermet anode derived from ...
Alexander Adamczyk   +7 more
wiley   +1 more source

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