Results 81 to 90 of about 6,584 (284)

Simple thermodynamic model of the extension of solid solution of Cu–Mo alloys processed by mechanical alloying

Materials Chemistry and Physics, 2011
Abstract The objective of this work is proposing a simple thermodynamic model to explain the increase in the solubility limit of the powders of the Cu–Mo systems or other binary systems processed by mechanical alloying. In the regular solution model, the effects of crystalline defects, such as; dislocations and grain boundary produced during milling ...
Aguilar, C., Guzman, D., Rojas, P. A., Ordonez, Stella, Rios, R.   +4 more
openaire   +3 more sources

Deformation Behavior and Mechanical Analysis of Vertically Aligned Carbon Nanotube (VACNT) Bundles [PDF]

, 2011
Vertically aligned carbon nanotubes (VACNTs) serve as integral components in a variety of applications including MEMS devices, energy absorbing materials, dry adhesives, light absorbing coatings, and electron emitters, all of which require structural ...
Hutchens, Shelby Brooke
core   +1 more source

Precipitation Simulations of the O‐Phase in Ti2AlNb Alloys Processed by Laser Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Simulated and experimental evolution of the O‐phase volume fraction during postprocessing of a Ti‐21Al‐25Nb (at.%) alloy processed by laser powder bed fusion. With results of sensitivity to input parameters from a thorough and quantified analysis, the interfacial energy matrix/precipitate is the most relevant input parameter for the simulation of the O‐
Silvana Tumminello, Joachim Gussone, Suzana G. Fries, Marcus Rackel, Andreas Stark, Norbert Schell, Jan Haubrich, Guillermo Requena   +7 more
wiley   +1 more source

What Can the Concept of a Perfect Chemoelastic Solid Tell us about the Mechanical and Thermodynamic Behaviour of a Solid ?

Le Journal de Physique IV, 1996
The elastic energy stored in a solid is typically small compared to the energy involved in a phase change. As a consequence, it is relatively easy to generate elastic stresses by a modification of the composition andor a phase transformation. Conversely, the influence of stresses on phase changes is only of importance in special situations.
openaire   +3 more sources

Influence of Si Content and Milling Duration on the Microstructure and Mechanical–Tribological Properties of AlCoCrFeNiSi High‐Entropy Alloys

Advanced Engineering Materials, EarlyView.
Si‐doped AlCoCrFeNi high‐entropy alloys are synthesized by mechanical alloying to reveal the effect of Si content and milling time on phase evolution, microstructural refinement, and tribological behavior. A transition from FCC to BCC structure, significant grain refinement, and enhanced hardness and wear resistance are achieved, with the 4 at% Si ...
Mustafa Okumuş, Mehmet Emin Demir, Sercan Özpınar   +2 more
wiley   +1 more source

Fluid-dynamical parameters control for atomized slip pneumatic conveying

, 2010
Paper presented at the 7th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Turkey, 19-21 July, 2010.One of the most important problems in ceramic industrial processes is the atomized slip conveying.
SACCANI, CESARE, Bianchini, A., BIANCHINI, AUGUSTO, Saccani, C.   +3 more
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Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

Advanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal, Cevher Kursat Macit, Merve Ayık, Hakan Tutumlu   +3 more
wiley   +1 more source

Thermodynamic explanation of solid-state reactions in synthesis process of CoSb3 via mechanical alloying

Acta Physica Sinica, 2006
CoSb3 powders were synthesized by mechanical alloying (MA) with Co and Sb powders as starting materials. The influence of milling speed and duration on the solid reaction were systematically studied. The XRD results indicated that the CoSb3 phase increased with prolonged MA-time, but extensive MA resulted in the appearance of CoSb2 and the ...
null Liu Wei-Shu, null Zhang Bo-Ping, null Li Jing-Feng, null Liu Jing   +3 more
openaire   +1 more source

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

An unconstrained melting analysis of a solid PCM in a spherical capsule

, 2010
Paper presented at the 7th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Turkey, 19-21 July, 2010.A melting model of a solid phase change material (PCM) in a spherical capsule using the stream function in which a solid ...
Jin, Yingzi, Matsuda, K., Koizumi, H.
core