Results 101 to 110 of about 295,302 (310)

Diffusion bonding of titanium to simulate S-1C fuel tankage components [PDF]

Developing fabrication methods for diffusion bonding of titanium alloys to meet SIC fuel tank design ...
Irvine, C. N.
core   +1 more source

Removing Oxide Layers and Retaining Oxide‐Free Steel Surfaces by Polishing in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this study, the efficacy of wet mechanical polishing under an oxygen‐free atmosphere for deoxidation and the retention of an oxide‐free steel surface are elucidated using X‐ray photoelectron spectroscopy. The methodology proved successful; however, the results were highly dependent on the preparation of the solvents used to clean the samples after ...
Friedrich Bürger, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +2 more
wiley   +1 more source

First principles study of adsorbed Cu_n (n=1-4) microclusters on MgO(100): structural and electronic properties

, 1998
We present a density functional study of the structural and electronic properties of small Cu_n (n=1,4) aggregates on defect-free MgO(100). The calculations employ a slab geometry with periodic boundary conditions, supercells with up to 76 atoms, and ...
A. Selloni, R. Car, Tosi M. P., V. Musolino   +3 more
core   +1 more source

Population of Nonmetallic Inclusions in Liquid High‐Silicon Electrical Steel in Contact With MgO–C Refractories Based on Recyclates and Environmentally Friendly Binders

Advanced Engineering Materials, EarlyView.
The formation of nonmetallic inclusions (NMIs) was investigated in this study, carrying out immersion tests for 30 min at a temperature of 1600°C with liquid high‐silicon electrical steel (Si ≈ 3 mass‐%) and different MgO–C refractories. Conventional MgO–C refractories were considered, as well as MgO–C refractories containing MgO–C recyclate and ...
Lukas Neubert, Matheus Roberto Bellé, Florian Kerber, Dinesh Kumar Gunasekar, Hans‐Jörn Weddige, Christos G. Aneziris, Olena Volkova   +6 more
wiley   +1 more source

Hot-pressing sintering diffusion bonding of a high-toughness titanium alloy and an ultra-high-strength steel with Ta/Ni dual-interlayer

Journal of Materials Research and Technology
The powder metallurgy forming of ultra-high-strength steel (UHSS) G33 and its combination with high toughness titanium alloy Ti–7Al–1Mo-0.5V-0.1C were achieved through the application of Ta/Ni dual-interlayer in a hot-press sintering diffusion bonding ...
Chengwei Li, Qunbo Fan, Lin Yang, Luyue Qiu, Shun Xu, Ni Xiong, Haichao Gong, Junjie Zhang   +7 more
doaj   +1 more source

The Stokes-Einstein Relation in Supercooled Aqueous Solutions of Glycerol

, 2006
The diffusion of glycerol molecules decreases with decreasing temperature as its viscosity increases in a manner simply described by the Stokes-Einstein(SE) relation. Approaching the glass transition, this relation breaks down as it does with a number of
A. Einstein, Bo Chen, C. Gao, D. J. Tomlinson, E. E. Sigmund, E. Jenckel, G. Tamman, G. S. Fulcher, H. Vogel, W. P. Halperin   +9 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

Effect of the Diffusion Bonding Conditions on Joints Strength

Journal of Engineering and Sustainable Development, 2009
In this research the effect of different parameters on the strength of joints which bonded by using diffusion bonding process has been studied. The specimens of copper and nickel were annealed in a vacuum furnace at (800 ºC). Specimens of Cu and Ni were
Zeyad D. Kadhim, Ali I. Al- Azzawi, Sabah J. Al-Janabi   +2 more
doaj  

Joining and fabrication of metal-matrix composite materials [PDF]

Manufacturing technology associated with developing fabrication processes to incorporate metal-matrix composites into flight hardware is studied. The joining of composite to itself and to titanium by innovative brazing, diffusion bonding, and adhesive ...
Bales, T. T., Royster, D. M., Wiant, H. R.   +2 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