Results 101 to 110 of about 103,218 (331)

Five-dimensional imaging of freezing emulsions with solute effects

, 2018
The interaction of objects with a moving solidification front is a common feature of many industrial and natural processes such as metal processing, the growth of single-crystals, the cryopreservation of cells, or the formation of sea ice. Solidification
Dedovets, Dmytro, Deville, Sylvain, Monteux, Cécile   +2 more
core   +3 more sources

Interfacial-Redox-Induced Tuning of Superconductivity in YBa2Cu3O7-δ. [PDF]

, 2019
Solid-state ionic approaches for modifying ion distributions in getter/oxide heterostructures offer exciting potentials to control material properties.
Arenholz, Elke, Borchers, Julie A, Brubaker, Zachary E, Chopdekar, Rajesh V, Gilbert, Dustin A, Grutter, Alexander J, Hernández-Maldonado, David, Jeffries, Jason R, Kirby, Brian J, Liu, Kai, Liyanage, WLNC, Murray, Peyton D, Takamura, Yayoi, Taufour, Valentin, Varela, Maria, Zieve, Rena J   +15 more
core   +2 more sources

Influence of an Oxygen‐Free Atmosphere on Diamond‐Single‐Grain Scratching of Ti–6Al–4V

Advanced Engineering Materials, EarlyView.
Single‐grain scratching of Ti–6Al–4V is investigated under controlled, oxygen‐free, and ambient atmospheres using a novel experimental setup with in situ high‐speed imaging. The approach enables direct observation of chip formation and adhesion under suppressed oxidation.
Berend Denkena, Benjamin Bergmann, Michael Zenger   +2 more
wiley   +1 more source

Diode Laser Welding/Brazing of Aluminum Alloy to Steel Using a Nickel Coating

Applied Sciences, 2018
Joining Al alloy to steel is of great interest for application in the automotive industry. Although a vast number of studies have been conducted to join Al to steel, the joining of Al to steel is still challenging due to the formation of brittle Fe–
Jin Yang, Jieshi Chen, Wanqin Zhao, Peilei Zhang, Zhishui Yu, Yulong Li, Zhi Zeng, Norman Zhou   +7 more
doaj   +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

Effects of thickness ratios on microstructure and mechanical characteristics of AA6063/AA7072 composite plates by differential temperature rolling

Results in Engineering
In the present work, AA6063/AA7072 composite plates were fabricated by the differential temperature rolling (DTR) with different thickness ratios (HAA6063:HAA7072).
Yiyu Shao, Wenfei Peng, Moliar Oleksandr, Huangxiang Ma, Bangjie Fu   +4 more
doaj   +1 more source

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source

Microstructure evolution and formation mechanism of interfaces in parallel gap resistance welding of stranded Ag-plated Cu conductor to Ag interconnector

Materials & Design
In space flexible solar arrays, stranded Ag-plated Cu conductors and Ag interconnectors are preferred materials for energy transmission. Parallel gap resistance welding is a solderless micro-joining process that favors the reliability of joints between ...
Nannan Chen, Zhichao Wang, Guanzhi Wu, Xuebin Zhuo, Yuhan Ding, Yi Wei, Jusha Ma, Min Wang, Chen Shen, Bin Qian, Xueming Hua   +10 more
doaj   +1 more source

Effect of internal curing on behavior of high performance concrete: An overview

Case Studies in Construction Materials, 2019
This study reviews research experiences on developing an internal curing approach for high-performance concrete (HPC). Common materials have been used to produce the internal curing required to reduce self-desiccation in cement paste and will ...
Doha M. Al Saffar, Aymen J.K. Al Saad, Bassam A. Tayeh   +2 more
doaj   +1 more source

Resistance Rapid Heating of Aluminum Coatings in an Extreme High Vacuum–Adequate Atmosphere for Hot Stamping

Advanced Engineering Materials, EarlyView.
The subject of this work is the development of a corrosion‐protective coating on steel sheets for form hardening. Rapid heating in an extreme high vacuum (XHV)‐adequate atmosphere is a useful method to prevent oxidation during alloying of 22MnB5 and aluminum to obtain a metallurgical bonding.
Lorenz Albracht, Alexander Schnettger, Ulrich Holländer, Sven Hübner, Bernd‐Arno Behrens, Hans Jürgen Maier   +5 more
wiley   +1 more source