Results 151 to 160 of about 432,284 (250)

Combined Process‐ and Phase‐Field‐Simulation to Predict the Microstructure of Single‐Crystal Ni‐Based Superalloys

Advanced Engineering Materials, EarlyView.
A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm, André B. Baldissera, Rainer Völkl, Uwe Glatzel   +3 more
wiley   +1 more source

Fundamental Limits of an Irreversible Heat Engine. [PDF]

Entropy (Basel)
Fu R.
europepmc   +1 more source

Characterization of a Recyclate‐Based MgO‐Steel Composite As‐Sintered Inert Anode Candidate After Exposure to Cryolite Electrolysis

Advanced Engineering Materials, EarlyView.
Carbon‐free inert anodes are essential for decarbonizing aluminum electrolysis. This study investigates a recyclate‐based MgO‐316L steel composite anode tested under galvanostatic Hall–Héroult conditions in cryolite at 1000°C. Microstructural analysis reveals selective MgO fluorination, spinel and oxide layer formation, electrolyte infiltration, and ...
Serhii Yaroshevskyi, Alexander Adamczyk, Nora Brachhold, Gert Schmidt, Jana Hubálková, R. Gumeniuk, Alexandros Charitos, Christos G. Aneziris   +7 more
wiley   +1 more source

Control and synchronization of rapid nanoscale DNA heat engine by local heating. [PDF]

Sci Adv
Wang K, Hardikar A, Chen W, Huang Q, Guo B, Guo B, Zhu G, Ni H, Sha R, Seeman NC, Chaikin PM.   +10 more
europepmc   +1 more source

Performance of Universal Reciprocating Heat-Engine Cycle with Variable Specific Heats Ratio of Working Fluid. [PDF]

Entropy (Basel), 2020
Chen L, Ge Y, Liu C, Feng H, Lorenzini G.   +4 more
europepmc   +1 more source

On‐Demand Activation of Thin Alginate Shell Encapsulated Volatile Liquid for Untethered Pneumatic Soft Actuation

Advanced Engineering Materials, EarlyView.
Phase‐changing liquids enable untethered pneumatic actuation in soft robotics but suffer from volatility and storage challenges. This work reports a simple method to encapsulate Novec 7000 within micron‐thin alginate shells via in situ injection and ionic crosslinking.
Rayan A. M. Basodan, Jack Keddie, Byoungyoul Park, Hyun‐Joong Chung   +3 more
wiley   +1 more source

Maximum-Power Stirling-like Heat Engine with a Harmonically Confined Brownian Particle. [PDF]

Entropy (Basel)
Prieto-Rodríguez I, Prados A, Plata CA.
europepmc   +1 more source

Optimal Power and Efficiency of Multi-Stage Endoreversible Quantum Carnot Heat Engine with Harmonic Oscillators at the Classical Limit. [PDF]

Entropy (Basel), 2020
Meng Z, Chen L, Wu F.
europepmc   +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

Enhancing thermoelectric output in a molecular heat engine utilizing Yu-Shiba-Rusinov bound states. [PDF]

Nat Commun
Volosheniuk S, Bouwmeester D, Vogel D, Wegeberg C, Hsu C, Mayor M, van der Zant HSJ, Gehring P.   +7 more
europepmc   +1 more source