Results 61 to 70 of about 308 (200)

Polycarbonate Vitrimers and Dynamic Co‐Networks From Epoxide/Carbon Dioxide Copolymerization

Macromolecular Rapid Communications, EarlyView.
This work demonstrates how CO2‐derived poly(propylene carbonate) and poly(cyclohexene carbonate) backbones influence vitrimer thermo‐mechanical behavior. By tuning backbone composition, epoxide crosslinker chemistry and blend ratios, the crosslinked materials span a wide property window, from highly extensible to stiff, glassy networks, establishing an
Satej S. Joshi, Sophia Aracri, Mark D. Foster, James M. Eagan   +3 more
wiley   +1 more source

Influence of Strain Rate on the Strain Hardening Behavior of a Lean Duplex Stainless Steel

MetalMat, EarlyView.
The aim of this study was to examine how strain rate influences the compressive strain‐hardening behavior of a lean duplex stainless steel LDX 2101. Microstructural analysis using electron backscatter diffraction (EBSD) revealed a strain‐induced austenite‐to‐martensite transformation.
Akilakpa Sawyerr, Eric Kotei T. Addison, Martin Owusu‐Mensah, Abdul Jaleel Mohammed, Daolun Chen   +4 more
wiley   +1 more source

Multi-head attention network for prediction of irradiation embrittlement in reactor pressure vessel steels

npj Materials Degradation
The accurate prediction of irradiation embrittlement in reactor pressure vessel (RPV) steel remains challenging. Here, we develop a multi-head attention network (MHANet) and target the service-relevant shift in ductile-brittle transition temperature ...
Chong Tian, Jie Gao, Dongyue Chen, Zhengcao Li, Shasha Lv   +4 more
doaj   +1 more source

Characterization of Reactor Pressure Vessel Steel by ABI Testing

Procedia Materials Science, 2016
AbstractMicrostructure of the base metal, the multilayer welding seam and the two-layer cladding was characterized through the thickness of the WWER 440 reactor pressure vessel wall. Mechanical properties were determined by performing a series of instrumented indentations across the weld at room temperature.
Haušild, Petr, Siegl, Jan, Materna, Aleš, Kytka, Miloš, Kopřiva, Radim   +4 more
openaire   +1 more source

Combined CFD and Monte Carlo Simulation for Modeling the Impact of Mixing on the High‐Pressure Polymerization of Ethylene

Macromolecular Reaction Engineering, EarlyView.
This article addresses the impact of mixing on polymer properties during high‐pressure polymerization of ethylene. Mixing is analyzed using CFD simulations, including polymerization kinetics. Detailed polymer properties are obtained through Monte Carlo simulations. Both modeling steps are linked via a compartmentalization approach.
Lena Gockel, Emil Schwarz, Markus Busch
wiley   +1 more source

Research and Application of Steels for Reactor Pressure Vessel of Nuclear Power Station

Teshugang, 2010
Developed status of steels for nuclear reactor pressure vessel at home and abroad is presented including re- querulent for analysis and properties, metallurgical process, heat treatment, and present situation of manufacture and application. The developed
doaj  

Vibrational Exfoliation of 2D Materials

Small, EarlyView.
Vibrational energy folds, fractures and exfoliates atomically and molecularly thin materials. Combining experimentation and computational methods, this unique vibrational synthesis pathway is revealed. This process overcomes barriers of existing approaches by processing 1000 g/L dispersions without loss in yield.
Aadam Rabani, Faysal A. Khaleel, Fahad S. Al‐Gburi, Irwing Ramirez, Tomislav Friščić, Jason Stafford   +5 more
wiley   +1 more source

Improved Charge Transport and Device Performance in p‐i‐n Carbon Electrode Perovskite Solar Cells Using SiC‐APTES Additive

Small, EarlyView.
Modification of carbon electrode by mixing silicon carbide nanoparticles functionalized with 3‐aminopropyltriethoxysilane improves the charge transport and device performance of p‐i‐n perovskite solar cells over 18% along with the decreased hysteresis and extended stability.
Mikhail Pylnev, Ryosuke Nishikubo, Tomoya Nakamura, Ryoji Shimomura, Atsushi Wakamiya, Akinori Saeki   +5 more
wiley   +1 more source

Investigating the Iron‐Steam Process for Coupling With SOEC and SOFC: A Step Toward Integrated Hydrogen and Electricity Storage

steel research international, EarlyView.
Fixed‐bed reactor experiments (10 L) validate the iron–steam redox process, bridging material‐scale research and industrial power‐to‐power applications. Coupled with SOEC/SOFC systems, this framework defines critical interfaces for heat and gas management. Results confirm reproducible hydrogen storage and release, demonstrating technical feasibility at
Julien Göthel, Radek Vostal, Olena Volkova   +2 more
wiley   +1 more source

Effective Equilibrium Reaction Zone Modeling of Hydrogen Plasma Smelting Reduction: A Scenario Analysis

steel research international, EarlyView.
The study presents a dynamic zonal model for hydrogen plasma smelting reduction (HPSR) in direct current arc furnaces, predicting time‐dependent behavior of metal, slag, and off‐gas. The study considers various industrial scenarios to quantify energy demand, hydrogen utilization, degree of reduction, and other operational sensitivities.
Tristan K. Wickham, Stephanus P. Du Preez, Dmitri G. Bessarabov, Stephan C. Louw, Ernst L. J. Kleynhans   +4 more
wiley   +1 more source