Results 51 to 60 of about 63,571 (265)

Thermal Cycle–Microstructure–Property Relationships in Rail Steel Heat‐Affected Zone Simulated by Gleeble

Advanced Engineering Materials, EarlyView.
Microstructural evolution of premium rail steel during flash butt welding (FBW), comparing physically simulated heat‐affected zones with actual weld regions. Thermal cycles induce phase transformations and microstructural heterogeneity that influence weld quality and mechanical performance. These findings provide insights into optimizing FBW parameters
Emmanoelle Cintra da Cunha Araújo, João Marcos da Silva Nunes, Marcelly Cristiny Nunes de Carvalho, Alex Rojas, Cristie Luis Kugelmeier, Cristhian Ricardo Loayza Loayza, João Carlos Ferreira, Maria Veronica Goncalves Rodrigues, Rute Sayuri Kano, Isaac Araújo Furtado, Jacyara Dalylla da Silva Nunes, Jhonatan Peres de Sousa, Marcos Natan da Silva Lima, Eden Santos Silva, Gedeon Silva Reis, Samuel Filgueiras Rodrigues   +15 more
wiley   +1 more source

A kinetic expression for the pyrolytic decomposition of polytetrafluoroethylene

Journal of Fluorine Chemistry, 2008
Abstract Despite the fact that the thermal decomposition of polytetrafluoroethylene has been extensively studied over the past six decades, some inconsistencies regarding the kinetic parameters, e.g. the order of the reaction, remain. Representative kinetic data are essential for practical purposes such as reactor design and scaling. In general the
Van der Walt, Izak J., Neomagus, Hein W.J.P., Bruinsma, O.S.L., Nel, Johann T., Crouse, Philippus L.   +4 more
openaire   +2 more sources

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

Advanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng, Qian Yao, Yanan Sun, Hongyu Lv, Zhongchao Bai, Guoliang Zhang, Nana Wang, Jian Yang   +7 more
wiley   +1 more source

Thermal decomposition characteristics of foundry sand for cast iron in nitrogen atmosphere [PDF]

Royal Society Open Science, 2018
Sand casting, currently the most popular approach to the casting production, has wide adaptability and low cost. The thermal decomposition characteristics of foundry sand for cast iron were determined for the first time in this study.
Qingwei Xu, Kaili Xu, Xiwen Yao, Jishuo Li, Li Li   +4 more
doaj   +1 more source

Decomposition kinetics for HONO and HNO ₂ [PDF]

Reaction Chemistry & Engineering, 2019
This work presents a detailed investigation into the isomerization and decomposition of HONO and HNO 2 .
Xi Chen, Mark E. Fuller, C. Franklin Goldsmith   +2 more
openaire   +2 more sources

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

Advanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian, Jingkai Lin, Zhihao Tian, Selusiwe Ncube, Huayang Zhang, Emiliano Cortés, Hongqi Sun, Shaobin Wang   +7 more
wiley   +1 more source

From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics

Advanced Functional Materials, EarlyView.
We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou, Bokeon Kwak, Dario Floreano, Esther Amstad   +3 more
wiley   +1 more source

The Modulatory Effect of Inhibitors on the Thermal Decomposition Performance of Graded Al@AP Composites

Aerospace
In this paper, a series of graded Al-based composites, including Al@AP, Al@AP/BM−52, and Al@AP/BPE−1735, have been prepared by spray drying technology. The thermal decomposition characteristics, kinetic parameters of the decomposition reaction, and Pyro ...
Kan Xie, Jing Wang, Zhi-Yu Zhang, Bin Tian, Su-Lan Yang, Jingyu Lei, Ming-Hui Yu   +6 more
doaj   +1 more source

Modeling of Methane Hydrate Decomposition by Using Chemical Affinity [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2010
In this work, experimental kinetics data of methane hydrate decomposition at temperatures ranging from 272.15 to 276.15 K and at pressures ranging from 10 to 30 bars were modeled by using chemical affinity.
Farshad Varaminian, Zohreh Abbasi nia
doaj  

Ozone Decomposition Kinetics [PDF]

, 2013
In this exercise students will review some applications of an important industrial chemical. From this review it will become obvious why understanding basic physical and chemical parameters of chemical species are important. Students will also use existing experimental data, involving the decomposition of ozone to form oxygen, to determine reaction ...
openaire   +1 more source