Results 101 to 110 of about 47,981 (307)

Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
This study investigates laser ablation of aluminum under oxygen‐free conditions. The goal is to produce oxide‐free substrates that enable improved adhesive bonding with epoxy. Optimized laser parameters (90% overlap, 300 µJ) combined with oxide‐free substrates result in the highest tensile strength of the adhesive bond.
Sandra Gerland, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Ludger Overmeyer, Annika Raatz   +5 more
wiley   +1 more source

Research on a new fiber-optic axial pressure sensor of transformer winding based on fiber Bragg grating

Photonic Sensors, 2017
Based on the principle of the fiber Bragg grating, a new type of fiber-optic pressure sensor for axial force measurement of transformer winding is designed, which is designed with the structure of bending plate beam, the optimization of the packaging ...
Yuan Liu, Lianqing Li, Lin Zhao, Jiqiang Wang, Tongyu Liu   +4 more
doaj   +1 more source

All-optical differential current detection technique for unit protection applications

, 2013
In this paper we demonstrate a novel, all-optical differential current protection scheme. By monitoring the optical power reflected from two matched hybrid fiber Bragg grating current sensors and using a simple optoelectronic threshold detector, an ...
Philip Orr, Pawel Niewczas, Niewczas, Pawel, Fusiek, Grzegorz, Hao Wang, Grzegorz Fusiek, Orr, Philip, Wang, Hao   +7 more
core   +1 more source

A dielectric sensor for measuring flow in resin transfer moulding. [PDF]

, 2000
The development, analysis and experimental validation of a novel flow and cure sensor for use in the resin transfer moulding of composites are presented.
Karkanas, Panagiotis I., Skordos, Alexandros A., Partridge, Ivana K.   +2 more
core   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

A Highly Sensitive Fiber Optic Sensor Based on Two-Core Fiber for Refractive Index Measurement [PDF]

, 2013
A simple and compact fiber optic sensor based on a two-core fiber is demonstrated for high-performance measurements of refractive indices (RI) of liquids.
José Javier Sánchez Mondragón
core  

Quadratic behavior of fiber Bragg grating temperature coefficients [PDF]

, 2004
We describe the characterization of the temperature and strain responses of fiber Bragg grating sensors by use of an interferometric interrogation technique to provide an absolute measurement of the grating wavelength. The fiber Bragg grating temperature
Bennion, Ian, Read, I, Foote, P D, Jones, J. D C, MacPherson, W N, Maier, Robert R.J., MacPherson, William N., Flockhart, G. M H, Flockhart, G M H, Read, Ian, Jones, Julian D.C., Flockhart, Gordon M.H., Barton, J S, Barton, James S., Maier, R. R J; id_orcid, MacPherson, William N.; id_orcid, Foote, Peter D., Maier, R R J, Chisholm, K E, Bennion, I, Zhang, Lin, Jones, J D C, Chisholm, Karen E., Zhang, L, Read, Ian J.   +24 more
core   +1 more source

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

Advanced 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, Lara Kuhr, Khemais Barienti, Sebastian Herbst, Florian Nürnberger, Hans Jürgen Maier, Marc C. Wurz   +6 more
wiley   +1 more source

Dual Temperature and Strain Measurement with the Combined Fluorescence Lifetime and Bragg Wavelength Shift Approach in Doped Optical Fiber

We have constructed fiber-optic sensors to measure temperature and strain by combining the properties of fiber Bragg gratings with the fluorescent lifetimes of various doped fibers.
Wade, Scott A., Forsyth, David I., Sun, Tong, Chen, Xiaomei, Grattan, Kenneth T. V.   +4 more
core   +1 more source

Dielectric Barrier Discharge Plasma Deoxidation of Natively Oxide Layer of Copper Powders in a Fluidized Bed

Advanced Engineering Materials, EarlyView.
This paper presents a novel approach to reducing oxide layers on metal powders using low‐temperature hydrogen dielectric barrier discharge plasmas at atmospheric pressure. Unlike conventional hydrogen‐plasma reductions, the powders do not contact the plasma directly.
Shukang Zhang, Annett Wollmann, Thomas Gimpel, Alfred P. Weber   +3 more
wiley   +1 more source