Results 101 to 110 of about 221,530 (305)
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 +5 more
wiley +1 more source
Nano-Micro LettersHighlights Developing a universal bulk heterojunction strategy to create oxygen vacancies by embedding laser-manufactured metal nanocrystals into the TiO2 matrix.
Zelin Ma +15 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm +6 more
wiley +1 more source
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 +9 more
wiley +1 more source
Materials & Design, 2019 The purpose of this study is to quantify the detrimental effects of atomic oxygen and ultraviolet (UV) C radiation on the mechanical properties, electrical conductivity, and piezoresistive effect of acid-spun carbon nanotube (CNT) yarns.
Ryan A. Kemnitz +3 more
doaj +1 more source
On the Role of Exchange Interaction in Magnetic Ordering and Conductivity of Manganites
, 2001 A model of chemical bonding between ions in manganites involving covalent one-electron $\sigma$ bonding is suggested. The covalent one-electron $\sigma$ bonding gives rise to a strongly correlated state of electrons resulting from the exchange ...
Krasinkova, M. V.
core +1 more source
Advanced 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
Small StructuresThe improved electronic conductivity and ion diffusion efficiency of TiO2‐based anode materials have been extensively studied by introducing oxygen vacancies or creating amorphous structure. There has been little exploration of the synergistic effects by
Zhongkai Hao +7 more
doaj +1 more source
Modeling electrolyte composition effects on anion-exchange membrane water electrolyzer performance [PDF]
, 2019 Anion-exchange membrane (AEM) water electrolysis could allow inexpensive and greener hydrogen production than other alternatives, such as steam methane reforming.
Gerhardt, MR, Stanislaw, LN, Weber, AZ
core
Sintering of oxygen ion conductive ceramics and their electrical properties
Lithuanian Journal of Physics, 2012 Oxygen ion conducting ceramics (Sc 2 O 3 ) 0.1 (ZrO 2 ) 0.9 , (Sc 2 O 3 ) 0.1 (CeO 2 ) 0.01 (ZrO 2 ) 0.89 and Ce 0.9 Gd 0.1 O 1.95 were sintered from powders with different specific surface areas. The produced ceramics were studied by scanning electron microscopy and impedance spectroscopy methods.
Saulius Kazlauskas +3 more
openaire +2 more sources