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Relevant bibliographies by topics / Activating iron particles

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Academic literature on the topic 'Activating iron particles'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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Journal articles on the topic "Activating iron particles"

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Dorofeyev, V. Yu, D. N. Sviridova, and Kh S. Kochkarova. "On the question of the applicability of G.V. Samsonov’s activated sintering concept in studying the processes of powder material deformation." Izvestiya Vuzov. Poroshkovaya Metallurgiya i Funktsional’nye Pokrytiya (Universitiesʹ Proceedings. Powder Metallurgy аnd Functional Coatings), no. 4 (December 15, 2018): 6–14. http://dx.doi.org/10.17073/1997-308x-2018-4-6-14.

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Some Yu.G. Dorofeev’s memoirs about joint work and meetings with outstanding materials science expert G.V. Samsonov are given. Meetings in Yugoslavia were of particular importance where G.V. Samsonov and M.M. Ristićtogether with other worldfamous scientists created the International Institute for the Science of Sintering. In the last years of his life, G.V. Samsonov proposed the concept of sintering activation by additives that act as electron acceptors and additionally contribute to the ionic bond in the matrix material. The paper considers the possibility of using this concept in the develop

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Liu, Yunxin, Peng Zhou, Xiaowei Huo, Yang Liu, Xin Cheng, and Yongli Zhang. "Pre-magnetization for enhancing the iron-catalyzed activation of peroxymonosulfate via accelerating the corrosion of Fe0." Water Science and Technology 79, no. 7 (2019): 1287–96. http://dx.doi.org/10.2166/wst.2019.122.

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Abstract Our findings proved that micron-scale zero-valent iron (mZVI) particles with pre-magnetization combined with peroxymonosulfate (PMS) can markedly enhance the removal of acid orange 7 (AO7). Investigation into the mechanism showed that PMS accelerated the corrosion of ZVI to release Fe2+ under acidic conditions, and the in-situ generated Fe2+ further activated PMS to produce SO4•− and •OH, resulting in AO7 removal. Further, the Lorentz force strengthened the convection in the solution and the field gradient force tended to move Fe2+ from a higher to a lower field gradient at the pre-ma

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Wang, Yuanbo, Chaoqun Nie, Bo Li, and Yonggang Wei. "Migration and Aggregation Behavior of Nickel and Iron in Low Grade Laterite Ore with New Additives." Metals 11, no. 12 (2021): 2033. http://dx.doi.org/10.3390/met11122033.

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This study focused on the preparation of high-grade ferronickel concentrate, the behavior of efficient migration and the polymerization of ferronickel particles during reduction roasting, by adding calcium fluoride and a ferronickel concentrate to low-grade laterite ore from Yunnan. The effects of temperature, holding time, reductant content, ferronickel concentrate content and magnetic field intensity on the preparation of the ferronickel concentrate were studied and the optimum conditions were determined as follows: 30% ferronickel concentrate (metal Ni-4.68%, metal Fe-45.0%), 8% coal, 7% ca

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Dyachkova, L. N. "Features of the formation of the structure and properties of powder steels with additives that activate diffusion processes during sintering." Proceedings of the National Academy of Sciences of Belarus, Physical-Technical Series 65, no. 1 (2020): 43–53. http://dx.doi.org/10.29235/1561-8358-2020-65-1-43-53.

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Effect of activating the sintering process of powder steel alloyed with nickel or chromium by grinding the initial powders and introducing alkali metal compounds was investigated. The kinetics of grinding the initial iron powders, Cr30, and a mixture of iron powders with 4 % nickel was studied. It is shown that, depending on the hardness of the powder, it is grinded in three or two stages. When grinding more hard powders, there is no stage of intensive deformation of particles and an increase in their size. Crystalline lattice defects resulting from grinding of powders accelerate diffusion pro

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Joshi, Sahira, Manobin Sharma, Anshu Kumari, Surendra Shrestha, and Bhanu Shrestha. "Arsenic Removal from Water by Adsorption onto Iron Oxide/Nano-Porous Carbon Magnetic Composite." Applied Sciences 9, no. 18 (2019): 3732. http://dx.doi.org/10.3390/app9183732.

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This study aimed to develop magnetic Fe3O4/sugarcane bagasse activated carbon composite for the adsorption of arsenic (III) from aqueous solutions. Activated carbon (AC) was prepared from sugarcane bagasse by chemical activation using H3PO4 as an activating agent at 400 °C. To enhance adsorption capacity for arsenic, the resultant AC was composited with Fe3O4 particles by facile one-pot hydrothermal treatment. This method involves mixing the AC with aqueous solution of iron (II) chloride tetrahydrate, polyvinyl pyrrolidone (PVP), and ethanol. Batch adsorption experiments were conducted for the

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Artashyan, O. S., Yu S. Khramtsova, A. A. Vlasova, N. V. Tyumentseva, and B. G. Yushkov. "Mast cells as indicators of foreign particle biocompatibility." Medical Immunology (Russia) 26, no. 5 (2024): 967–74. http://dx.doi.org/10.15789/1563-0625-mca-16745.

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The key problem of introducing nanoparticles into clinical practice for diagnostic and therapeutic purposes is their safety. Connective tissue, an important component of which are mast cells, reacts actively in response to foreign particles. The reaction of mast cells can be an indicator of the biocompatibility of foreign particles. The study was conducted on male Wistar rats. Iron-carbon nanoparticles in the FeC modification stabilized in an aqueous medium using an auxiliary substance were used. Tissue examination (liver, lungs, heart, thymus, kidneys) was performed 1, 7 and 30 days after inj

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Huo, Xiaowei, Peng Zhou, Yunxin Liu, et al. "Removal of contaminants by activating peroxymonosulfate (PMS) using zero valent iron (ZVI)-based bimetallic particles (ZVI/Cu, ZVI/Co, ZVI/Ni, and ZVI/Ag)." RSC Advances 10, no. 47 (2020): 28232–42. http://dx.doi.org/10.1039/d0ra03924a.

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In this study, four different ZVI/M-PMS systems (e.g., ZVI/Cu, ZVI/Co, ZVI/Ni and ZVI/Ag) were fabricated to investigate the removal of contaminants (Rhodamine B, 2,4-dichlorophenol, bisphenol A, bisphenol F, levofloxacin, and chloramphenicol).

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Martinez Bulnes, Ana I., Poornima Shaji, Nirnoy Dan, et al. "Abstract 1038: Novel therapy targeting mutant-KRASG12D and galectin-1 in pancreatic cancer." Cancer Research 82, no. 12_Supplement (2022): 1038. http://dx.doi.org/10.1158/1538-7445.am2022-1038.

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Abstract Introduction: In pancreatic ductal adenocarcinoma (PDAC), low patient survival rate remains a problem. The activating point mutation of KRAS on codon-12 is present in 70-95% of PDAC cases and so far, no success has been achieved to inhibit KRAS. KRASG12D regulates cell proliferation, differentiation, apoptosis; recent preliminary and published studies show high Galectin-1 (Gal-1) levels in both PDAC and stromal cells, which modulate tumor microenvironment and metastasis. Therefore, we have developed a novel combination therapy for PDAC by targeting mutated KRASG12D and Gal-1 to target

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Moreno-Bárcenas, Alejandra, Jesús Alejandro Arizpe-Zapata, Julio Alejandro Rivera Haro, Pamela Sepúlveda, and Alejandra Garcia-Garcia. "Jute Fibers Synergy with nZVI/GO: Superficial Properties Enhancement for Arsenic Removal in Water with Possible Application in Dynamic Flow Filtration Systems." Nanomaterials 12, no. 22 (2022): 3974. http://dx.doi.org/10.3390/nano12223974.

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Groundwater is one of the primary sources of water for both drinking and industrial use in northeastern Mexican territory, around 46% of the total, due to the lack of precipitation during the year and solar radiation index. The presence of arsenic in brackish soil and groundwater is a severe health issue, specifically in semi-arid and arid regions in the north of Mexico. Additionally, it represents the only source of drinking water in communities far from big cities, mainly due to the absence of hydric infrastructure. This work presents a new approach to treating polluted water with arsenic. T

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Nuhu, Steven Kuba, and Francis Asokogene Oluwadayo. "The Synthesis of Activated Carbon from Coconut Shell for an Adsorbent Using Iron Chloride." CONTINENTAL J. APPLIED SCIENCES 12, no. 1 (2017): 62–74. https://doi.org/10.5281/zenodo.546470.

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<em>Coconut shell obtained from Chorbe in Jos, Plateau state, Nigeria was carbonized and char formed at a temperature of 655ºC. The char was ground and sieved into different sizes of 7, 14, 25 and -25mm. These sizes were activated using iron chloride solution and then treated with hydrochloric acid, sodium hydroxide and ammonia solution and dried in a furnace to a temperature of 750ºC to increase the pores in each of the sizes. The bulk densities of 7, 14, 25 and -25mm particle sizes were calculated and found to be 0.399, 0.587, 0.619 and 0.383g/cm<sup>3</sup> in that order. While the correspo

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Dissertations / Theses on the topic "Activating iron particles"

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Zhou, Ya-Mei. "Pulmonary oxidative stress and NF-[kappa]B activation in response to inhaled iron and soot particles in rats /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2002. http://uclibs.org/PID/11984.

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Conference papers on the topic "Activating iron particles"

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Evrensel, Cahit A., Lisbeth A. Welniak, Alan Fuchs, Jigar Patel, William J. Murphy, and Faramarz Gordaninejad. "Utilization of Biocompatible Ferrous Particles for a New Cancer Therapy." In ASME 2009 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2009. http://dx.doi.org/10.1115/sbc2009-206803.

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Magneto-rheologiacal Fluid (MRF), suspensions of polarizable micron size particles, is synthesized from suspensions of iron particles (micron and nano size) in phosphate buffered saline (PBS). The iron particles have been surface coated using atom transfer radical polymerization (ATRP) with various polymers, such as poly(N-isopropylacrylamide) (poly(NIPAAm)), and poly(acrylamide) (poly(AAm)). The surface grafted polymer has been characterized using differential scanning calorimetry (DSC), and properties of resulting fluid have been measured using a rheometer. A mathematical model is developed

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Oliinyk, Nonna, Halyna Ilnytska, and Galyna Bazaliy. "Research on the formation of strength characteristics of synthetic diamond powders." In IXth INTERNATIONAL SAMSONOV CONFERENCE “MATERIALS SCIENCE OF REFRACTORY COMPOUNDS”. Frantsevich Ukrainian Materials Research Society, 2024. http://dx.doi.org/10.62564/m4-no1017.

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The physical and mechanical properties of the diamond powders, in particular the strength and uniformity of the strength of the powder, primarily affect the efficiency of the abrasive tool. The purpose of the work is to study the formation of powder strength characteristics under the influence of powder flotation separation with preliminary surface activation by iron ions in an ultrasonic field in a liquid. To study the formation of the strength characteristics of powders obtained by flotation separation, powder brand AC 20 with a grain size of 100/80 of the Ni-Mn-C system was chosen. The samp

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Jaiswal, Shivendra Kumar, and Jitendra Kumar. "Sol-Gel Synthesis and Magnetic, Optical and Impedance Behaviour of Strontium Ferrite Powder." In ASME 2011 International Manufacturing Science and Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/msec2011-50067.

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An attempt has been made to synthesize SrFeO3-δ powder by sol-gel process involving oxalate formation, its digestion for 4h, drying at 150°C for 24h, and decomposition at 800°C for 10h. The resulting powder is shown to a) exhibit a single phase with a perovskite-type cubic structure and lattice parameter a = 3.862±0.002A˚, b) contain irregular shape particles, and c) display optical absorption peaks corresponding to charge transfer from oxygen to iron (3.73 and 3.41eV), t2g to eg transition of Fe3+ (1.57eV), and crystal field (3d-3d) charge transfer of Fe3+ (1.25eV). Impedance over a wide freq

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Marcos, Mari´a J., Teresa Herna´ndez, Miguel Sa´nchez, Alberto J. Quejido, and Manuel Romero. "Preparation of Mixed Iron Oxides for Solar Hydrogen Production by Means of the Pechini Technique." In ASME 2007 Energy Sustainability Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/es2007-36068.

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A process of synthesis of mixed iron oxides for their application to solar hydrogen production is reported. To analyze the suitability of the selected technique, different compositions in the compound MnxNi1−xFe2O4−5 were prepared by varying the Ni/Mn ratio between 0 and 3. The main objective was to identify the optimal amount of dopants for hydrogen production in such a magnetite. The powders were obtained from a solution of Ni, Mn and Fe nitrates by a polymeric method based on the Pechini process and were characterized by XRD and SEM. The characterization results indicated that the magnetite

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Amini, Ahmadreza, Ko-ichiro Ohno, Takayuki Maeda, Kazuya Kunitomo, and Keiichiro Kashimura. "H2-reduction Behavior of FeS-CaO Mixture during Microwave Heating." In Ampere 2019. Universitat Politècnica de València, 2019. http://dx.doi.org/10.4995/ampere2019.2019.9755.

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Microwave irradiation is an energy-efficient and a rapid-heating method to decrease the activation energy of chemical reactions via both thermal and non-thermal effects of microwave photons 1). Recently, hydrogen-reduction during microwave heating has been proposed for magnetite reduction to combine the advantages of microwave irradiation and using H2 as a reducing agent during iron production 2). In the present study, as a novel idea, the traditional microwave heating system was equipped with thermobalance to investigate the kinetics of H2-reduction of FeS-CaO mixture (FeS(s) + CaO(s) + H2(g)

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Bachrata, A., F. Fichot, G. Repetto, M. Quintard, and J. Fleurot. "Code Simulation of Quenching of a High Temperature Debris Bed: Model Improvement and Validation With Experimental Results." In 2012 20th International Conference on Nuclear Engineering and the ASME 2012 Power Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/icone20-power2012-54221.

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The loss of coolant accidents with core degradation e.g. TMI-2 and Fukushima demonstrated that the nuclear safety analysis has to cover accident sequences involving a late reflood activation in order to develop appropriate and reliable mitigation strategies for both, existing and advanced reactors. The reflood (injection of water) is possible if one or several water sources become available during the accident. In a late phase of accident, no well-defined coolant paths would exist and a large part of the core would resemble to a debris bed e.g. particles with characteristic length-scale: 1 to

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Jianhua, Liao, Li Wenyong, O. Alvarado, A. Hussein, R. Zaki, and R. Arellano. "First Core Analysis-Based Acid Fracturing Strategy Unlocked the Full Potential of the Abu Ghirab Oilfield Asmari Complex Carbonate Reservoir." In GOTECH. SPE, 2025. https://doi.org/10.2118/224536-ms.

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Abstract Objectives / Scope The Abu Ghirab oilfield is located in the Missan province, southeast Iraq, near the borders with Iran. The Asmari Group A reservoir mainly consists of Tertiary carbonate formations with low to medium interconnected porosity; natural fractures and vugular storage capacity are both present at different intensity among its sub-layers defining its reservoir quality heterogeneity. Primary target zones contain interbedded dolomite and argillaceous dolomite layers that promotes an inherent rock fabric and properties anisotropy. This paper presents the first ever horizontal

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