Results 51 to 60 of about 194,846 (262)

Numerical exploration of diffusion-controlled solid-state reactions in cubic particles [PDF]

Materials Science and Engineering: B, 2003
Abstract The characteristics of diffusion-controlled solid-state reactions in cubic particles are explored in this study. In order to capture the three-dimensional reaction front, the diffusion equation, subject to an interfacial chemical reaction in cubic particles, is solved in a transient form using the finite volume method. How the unreacted core
Huang, Phillip Gwo-Yan, Lu, Chung-Hsin, Sheu, Tony Wen-Hann   +2 more
openaire   +1 more source

Computer Simulation of Bound Component Washing To Minimize Processing Costs [PDF]

Acta Montanistica Slovaca, 2011
In this paper we focused on the optimization of the washing processes because many technological processes are characterizedby large consumption of water, electrical energy and auxiliary chemicals mainly.
Dagmar Janáčová, Karel Kolomazník, Hana Charvátová, Vladimír Vašek, Pavol Mokrejš, Rudolf Drga   +5 more
doaj  

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Phase equilibria and diffusion coefficients in the Fe-Zn binary system

Materials & Design, 2020
Phase diagram and diffusion coefficients of the Fe-Zn binary system are required to predict and control the microstructure of galvanized zinc coatings and thus were systematically investigated in the temperature range from 700 to 1100 °C using nine novel
Lilong Zhu, Shreyas Honrao, Biswas Rijal, Richard G. Hennig, Michele V. Manuel   +4 more
doaj   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Establishment and Solution of a Finite Element Gas Exchange Model in Greenhouse-Grown Tomatoes for Two-Dimensional Porous Media with Light Quantity and Light Direction

Agriculture
An accurate gas utilization model is essential for precisely detecting plant photosynthetic capacity. Existing equipment for measuring the plant photosynthetic rate typically considers the key parameters of mesophyll cell conductance and a photosynthetic
Chengyao Jiang, Ke Xu, Jiahui Rao, Jiaming Liu, Yushan Li, Yu Song, Mengyao Li, Yangxia Zheng, Wei Lu   +8 more
doaj   +1 more source

Numerical Simulation on Dendrite Growth During Solidification of Al-4%Cu Alloy

Cailiao gongcheng, 2016
A new two-dimensional cellular automata and finite difference (CA-FD) model of dendritic growth was improved, which a perturbation function was introduced to control the growth of secondary and tertiary dendrite, the concentration of the solute was ...
ZHANG Min, XU Ai-yan, WANG Qiang, LI Lu-lu   +3 more
doaj   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Síntesis por sales fundidas y sus aplicaciones en la ciencia de los materiales [PDF]

Avances en Química, 2011
The molten salt synthesis currently represents a major opportunity for development of research focused on materials science, part of the importance it has acquired over the years was due to its flexibility and ease of processing.
Felipe de Jesús Proa Silva, Edgardo Hernández Chavero, Sagrario Martínez Montemayor   +2 more
doaj  

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