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Journal articles on the topic 'Magnesium oxide – Industrial applications'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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1

Yunita, Fariza Eka, Eko Sulistiyono, Nadia Chrisayu Natasha, Ahmad Rizky Rhamdani, Florentinus Firdiyono, Latifa Hanum Lalasari, Tri Arini, Enggar Setya Widyaningrum, and Erlina Yustanti. "Investigation of surfactant effect during synthesis of magnesium oxide nanoparticles from bittern using ultrasonic destruction process." Eastern-European Journal of Enterprise Technologies 3, no. 5 (111) (June 25, 2021): 6–12. http://dx.doi.org/10.15587/1729-4061.2021.229908.

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Magnesium oxide (MgO) nanoparticles have been widely used in a variety of applications because of their good surface reactivity. Magnesium oxide from bittern has a larger surface area compared to magnesium oxide from calcined magnesite and magnesium ions precipitation from bittern using sodium hydroxide has higher purity than using calcium hydroxide or ammonium hydroxide. In this research, sodium hydroxide was added to a bittern solution obtaining magnesium hydroxide precipitate, followed by the calcination process to produce magnesium oxide. Nano magnesium oxide was synthesized by the ultrasonic destruction process using ethanol and 2-propanol as media. In this study, sonication time and particle concentration effect on the ultrasonic destruction process were investigated. During the process, the sonication time was varied between 8, 16, 32, 64, and 128 minutes while the magnesium oxide concentration was varied between 1 %, 2 %, and 3 %. Increasing sonication time and particle concentration will decrease the particle size. The previous study shows that particles with very small sizes tend to have an agglomeration effect. The aim of this work is to optimize nano magnesium oxide production from bittern. Surfactant addition was also studied to prevent agglomeration between particles. Four types of surfactant namely anionic (sodium lauryl sulfate), cationic (cetyl tri-methyl-ammonium bromide), amphoteric (fatty acid amido alkyl betaine), and non-ionic (nonylphenol 10 ethoxylated) with a concentration of 1 % and a volume of 0.125 ml were added during the second ultrasonic destruction process. All types of surfactants have a positive effect to prevent agglomeration during the ultrasonic destruction process, with the amphoteric surfactant having the highest performance

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2

Zhang, Zhan Peng, Cheng Zhang, De Xing Huang, Dan Yu Jiang, Rong Juan Zhang, and Zhi Yun. "The Exploring Research of the Determination Method of Magnesium Oxide Hydration." Advanced Materials Research 177 (December 2010): 342–45. http://dx.doi.org/10.4028/www.scientific.net/amr.177.342.

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Magnesium oxide is one of the most important raw materials in the refractory industry due to its high melting point (2800oC), corrosion resistance in the basic environment, and low cost. Nevertheless, magnesium oxide reacts easily with water to produce magnesium hydrate, which is followed by a large volumetric expansion, limiting its application in refractory industry. As the hydration of MgO is very important either in theory or in industrial production of magnesium, in this paper, the influence of temperature, residence time, as well as the impact of the solid content on MgO hydration and the kinetics of hydration reaction was evaluated to optimize the determination method of magnesium oxide hydration in refractory industry.

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3

Emelyanenko, Kirill A., Alexander G. Domantovsky, Elizaveta V. Chulkova, Alexandre M. Emelyanenko, and Ludmila B. Boinovich. "Thermally Induced Gradient of Properties on a Superhydrophobic Magnesium Alloy Surface." Metals 11, no. 1 (December 27, 2020): 41. http://dx.doi.org/10.3390/met11010041.

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Fabrication of superhydrophobic coatings for magnesium alloys is in high demand for various industrial applications. Such coatings not only extend the service life of metal structures, but also impart additional useful functional properties to the coated surface. In this study, we show that nanosecond laser processing of long, thin stripes of magnesium alloys followed by the deposition of a hydrophobic agent onto the magnesium oxide layer is a simple, convenient, and easily reproducible method for obtaining superhydrophobic surfaces with property gradient along the sample. The mechanism of the gradient in wettability and electrochemical properties of the magnesium alloy surface is discussed based on the high-temperature growth of magnesium oxide and its following degradation. The latter is related to the development of internal stresses and the formation of cracks and pores within the oxide layer at prolonged exposure to high temperatures during the interaction of a laser beam with the substrate. The effect of heating during laser processing of magnesium materials with limited sizes on the protective properties of the forming coatings is elucidated.

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4

Nykyforchyn, H. M., V. S. Agarwala, M. D. Klapkiv, and V. M. Posuvailo. "Simultaneous Reduction of Wear and Corrosion of Titanium, Magnesium and Zirconium Alloys by Surface Plasma Electrolytic Oxidation Treatment." Advanced Materials Research 38 (March 2008): 27–35. http://dx.doi.org/10.4028/www.scientific.net/amr.38.27.

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Titanium, magnesium and zirconium alloys are widely used in industrial applications, which require high wear and corrosion resistance. However current methods of improving these properties often do not satisfy the requirements of service and functional properties. An alternative approach is the application of oxide-ceramic coatings using high temperature process. The coatings are applied by spark discharge plasma in the metal-electrolyte system at high voltages - PEO (plasma electrolytic oxidation) as an oxide synthesis method. This method has shown good results for aluminium alloys and with good prospects to be used for titanium, magnesium and zirconium alloys. Development of PEO technology to improve the wear and corrosion resistance of titanium, magnesium and zirconium alloys is discussed in this paper. It describes the methods for obtaining the required layer-thickness for a specified hardness, porosity, wear and corrosion resistance, sets up the optimal process parameters (voltage/current) by taking the relation of anodic to cathodic currents into account, and establishing the electrolyte content of different dopants.

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5

Tiwari, Sunil Kumar, Sarang Pande, Santosh M. Bobade, and Santosh Kumar. "Assessment of mechanical properties and flammability of magnesium oxide/PA12 composite material for SLS process." Rapid Prototyping Journal 25, no. 1 (January 7, 2019): 176–86. http://dx.doi.org/10.1108/rpj-07-2017-0145.

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Purpose The purpose of this paper is to propose and develop PA2200-based composite powder containing 0-15 Wt.% magnesium oxide before directly using it in selective laser sintering (SLS) machine to produce end-use products for low-volume production in the engineering applications with keen focus to meet the functional requirements which rely on material properties. Design/methodology/approach The methodology reported emphasises PA2200-based composite powder containing 0-15 Wt.% magnesium oxide development for SLS process which starts with preparation and characterisation of composite material, thermal and rheological study of composite material to decide optimum process parameters for SLS process machine to get optimal part properties. Further, to verify composite material properties, a conventional casting methodology is used. The composition of composite materials those possessing good properties are further selected for processing in SLS process under optimal processing parameters. Findings The process parameters of SLS machine are material-dependent. The effect of temperature in X-ray diffraction profile is negligible in the case of magnesium oxide reinforced PA2200 composite material. The cyclic heating of material increases melting point temperature, this grounds to modify part bed temperature of material every time before processing on SLS machine to uphold build part properties, as well as material. With the rise in temperature, the Melt flow index and rheological property of materials change. The magnesium oxide reinforced PA2200 composite material has high thermal stability than pure PA2200 material. By the addition of small quantity of magnesium oxide, most of the mechanical property and flammability property improves while elongation at break (percentage) decreases significantly. Practical implications The proposed PA2200-based composite powder containing 0-15 Wt.% magnesium oxide material development system and casting metrology to verify developed material properties will be very useful to develop new composite material for SLS process with use of less material. The developed methodology has proven, especially in the case where non-experts or student need to develop composite material for SLS process according to the property requirement of applications. Originality/value Unlike earlier composite material development methodology, the projected methodology of polymer-based composite material and confirmation of material properties instead of commencing SLS process provides straight forward means for SLS process composite materials development with less use of the material and period of time.

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6

Iluțiu-Varvara, Dana-Adriana, Marius Tintelecan, Claudiu Aciu, and Ioana-Monica Sas-Boca. "Reuse of the Steel Mill Scale for Sustainable Industrial Applications." Proceedings 63, no. 1 (December 11, 2020): 14. http://dx.doi.org/10.3390/proceedings2020063014.

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The purpose of our paper is to assess the reuse potential of the steel mill scale for sustainable industrial applications. We have presented the experimental procedures for chemical and mineralogical characterizations. According to the results of the elementary chemical analysis, the steel mill scale contains the following predominant chemical elements: iron, aluminum, silicon, and magnesium. Due to its high iron content, the steel mill scale can be reused as a source of raw material in the sustainable steelmaking industry. The mineralogical phases identified in the steel mill scale are: wüstite (FeO), hematite (Fe2O3), magnetite (Fe3O4), silica (quartz) (SiO2), magnesioferitte (MgFe2O4), and aluminum oxide (corundum) (Al2O3). Silica, alumina, and hematite are the main compounds of the cement and contribute to the formation of the: dicalcium silicate (2CaO·SiO2), tricalcium silicate (3CaO·SiO2), tricalcium aluminate (3CaO·Al2O3), and tetra—calcium aluminoferrite (4CaO·Al2O3·Fe2O3). The results of the paper are promising and encourage the future research for establishing the optimal percentage for the reuse of the steel mill scale in the composition of concrete.

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7

Hasbullah, N. I., Mat Zain Mazatulikhma, and N. Kamarulzaman. "Nanotoxicity of Magnesium Oxide on Human Neuroblastoma SH-SY5Y Cell Lines." Advanced Materials Research 667 (March 2013): 160–64. http://dx.doi.org/10.4028/www.scientific.net/amr.667.160.

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The use of magnesium oxide (MgO) nanoparticles in industrial applications has been raised over the last decade. However, there is limited toxicology information available regarding the effects of MgO nanoparticles. In this study, cytotoxicity and neurotoxicity of this nanoparticle on SH-SY5Y cell lines was investigated. In order to assess the cytotoxicity effect, SH-SY5Y cells were exposed to three different types of MgO nanoparticles (MgO 5, MgO 10 and MgO 24) for 24, 48 and 72 h. The concentration of nanoparticles ranges from 1nM to 1mM. Cell viability was determined by MTS assay. Neurotoxicity test was performed to determine the effects of MgO nanoparticles on human neural cells. Results indicated that MgO nanoparticles are not toxic to both undifferentiated and differentiated SH-SY5Y cells. With further exploration, the safety and health concern regarding exposure of MgO nanoparticles can be verified since the increasing of using this nanoparticle in industry over the time.

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8

Duarte, Glaucea Warmeling, Alexandre Martins Neto, Caroline Anzolin, Lucinao Luiz Silva, Josiane Maria Muneron de Mello, Cintia Soares, Márcio Antônio Fiori, and Humberto Gracher Riella. "Evaluation of the Influence of the Reaction Medium of the Microstructure of Magnesium Oxide Nanopartícles." Materials Science Forum 1012 (October 2020): 173–78. http://dx.doi.org/10.4028/www.scientific.net/msf.1012.173.

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The increase in researches related to nanomaterials has provided innovation and enhancement of the properties of innumerous materials. Among the materials frequently studied, magnesium oxide can be cited because of its many industrial applications, mainly in the chemical and electronics sectors. Magnesium oxide nanoparticles, as well as other nanomaterials, can be produced by several routes of synthesis, and the characteristics of the route chosen may change the microstructure and properties of the nanoparticles. However, despite the general consensus that the synthesis variables affect the characteristics and properties of the nanoparticles, much still needs to be studied. Among these variables, the reactive environment is one of the factors that influence considerably and about which there are still few studies. In this work, it was evaluated, using the sol-gel synthesis method, how the modification of the solvent, water or ethyl alcohol, affects the morphology and purity of the magnesium oxide nanoparticles, as well as the yield of the synthesis reactions. The nanoparticles were characterized by XRD, surface area analysis via BET, FEG-MEV and EDS. The results indicated that the nanoparticles obtained by route using ethyl alcohol as solvent have a larger crystallite and particle size, besides the synthesis reactions have a higher yield. In addition, by the analysis of surface area and pore volume, they present a lower surface area and lower pore volume, in relation to the route that uses water as solvent. Thus, it was possible to conclude that altering the solvent of the reaction, even if all other synthesis conditions are maintained, significant modifications are observed in the morphology of the magnesium oxide nanoparticles and also in the reaction yield.

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9

David, Elena, V. Stanciu, Doina Stefanescu, and A. C. Nicolae. "Microstructure and properties of the sintered composites from zeolite 4A and magnesium oxide." Journal of Materials Processing Technology 119, no. 1-3 (December 2001): 288–92. http://dx.doi.org/10.1016/s0924-0136(01)00949-9.

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10

Sun, Dehui, Xueliang Kang, Qian Yu, Kun Cui, Xiaoyong Qin, Xuxia Shi, Huaqiang Cai, Tadashi Ohachi, Yuanhua Sang, and Hong Liu. "Antisite defect elimination through Mg doping in stoichiometric lithium tantalate powder synthesizedviaa wet-chemical spray-drying method." Journal of Applied Crystallography 48, no. 2 (February 21, 2015): 377–85. http://dx.doi.org/10.1107/s1600576715002113.

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MgO-doped stoichiometric LiTaO3(MgO:SLT) is one of the most promising nonlinear materials. However, its industrial application is limited by the poor optical quality caused by the nonhomogeneous distribution of magnesium. Herein, an MgO:SLT polycrystalline powder was synthesized with a homogenous magnesium distribution by a wet-chemical spray-drying method. A comparative investigation of the coordination state of Ta ions in MgO:SLT powders synthesized by this method and by a conventional solid-state reaction method was performed by X-ray photoelectron spectroscopy. It is proved that the Ta–Li antisite was completely eliminated as a result of the homogeneous Mg doping in the SLT lattice using the wet-chemical spray-drying method. However, for MgO:LT powder produced by the solid-state reaction method, element analysis after acid treatment shows that some Mg ions did not enter the LT lattice after high-temperature calcination. Also, scanning electron microscopy and transmission electron microscopy energy dispersive spectroscopy verified that some MgO particles still exist in the as-synthesized MgO:LT powder. This synthesis method can be used for mass production of high-quality polycrystalline powders for doped crystal growth and some other doped oxide powder products with high melt point.

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11

Aravind Kumar, Jagadeesan, Duvuru Joshua Amarnath, S. Anuradha Jabasingh, Ponnusamy Senthil Kumar, Kabali Vijai Anand, Gopakumaran Narendrakumar, Selvaraj Karthick Raja Namasivayam, et al. "One pot Green Synthesis of Nano magnesium oxide-carbon composite: Preparation, characterization and application towards anthracene adsorption." Journal of Cleaner Production 237 (November 2019): 117691. http://dx.doi.org/10.1016/j.jclepro.2019.117691.

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12

Adeleke, Blessing, John Kinuthia, and Jonathan Oti. "Optimization of MgO-GGBS Cementitious Systems Using Thermo-Chemical Approaches." Sustainability 13, no. 16 (August 20, 2021): 9378. http://dx.doi.org/10.3390/su13169378.

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The current study investigated the development of a sustainable thermo-chemical approach to effectively optimize MgO-waste activated GGBS formulations, using four types of magnesium oxide (MgO) waste materials with ground granulated blast-furnace slag (GGBS) to develop binary cementitious systems (MgO-GGBS). This stems from the expected complexity of cementitious binder optimization outcomes into a simpler analytic form, enhancing the rapid delivery of optimization results and contributing to the global awareness of sustainable approaches and use of industrial wastes. Three levels of Portland cement by weight (90, 80, and 70 wt.%) was replaced with MgO wastes including an industrial by-product (GGBS) to develop an experimental regime. Investigation was carried out by employing an experiment-based optimisation technique (thermo-chemical approach), which involved the design of an experimental regime and application of experimental tests (pH measurements, thermogravimetric and derivative thermogravimetric analysis—TG/DTG and isothermal calorimetry), establishment of design variable/parameters, measurement of the design performance of the identified design parameters, and review of the relationship between the independent (control) and dependent variables (MgO wastes and their compositions). The experimental test results successfully optimised the binder compositions, established the best performing binder system (MG1), and provided an in-depth insight into the thermal stability and hydration kinetics of the investigated binder systems.

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13

Rađenović, Ankica, Jadranka Malina, and Tahir Sofilić. "Characterization of Ladle Furnace Slag from Carbon Steel Production as a Potential Adsorbent." Advances in Materials Science and Engineering 2013 (2013): 1–6. http://dx.doi.org/10.1155/2013/198240.

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A promising type of steel slag for applications is the ladle furnace (LF) slag, which is also known as the basic slag, the reducing slag, the white slag, and the secondary refining slag. The LF slag is a byproduct from further refining molten steel after coming out of a basic oxygen furnace (BOF) or an electric arc furnace (EAF). The use of the LF slag in further applications requires knowledge of its characteristics. The LF slag characterization in this paper has been performed using the following analytical methods: chemical analysis by energy dispersive spectrometry (EDS), mineralogical composition by X-ray diffraction (XRD), surface area properties by the Brunauer-Emmett-Teller (BET) and the Barrett-Joyner-Halenda (BJH) methods, surface chemistry by infrared absorption (FTIR) spectroscopy, and morphological analysis by scanning electron microscopy (SEM). The results showed that the main compounds are calcium, silicon, magnesium, and aluminium oxides, and calcium silicates under their various allotropic forms are the major compounds in the LF slag. Surface area properties have shown that the LF slag is a mesoporous material with relatively great BET surface area. The ladle furnace slag is a nonhazardous industrial waste because the ecotoxicity evaluation by its eluate has shown that the LF slag does not contain constituents which might in any way affect the environment harmfully.

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Efavi, Johnson Kwame, Abu Yaya, Elsie Bowen-Dodoo, Lois Afua Damptey, and Richard Yeboah Abrokwah. "Synthesis and Pore Structure Characterisation of Novel Mesoporous MgO-CeO₂/SBA-15 as a Potential Catalyst Support." Materials Science Forum 900 (July 2017): 40–45. http://dx.doi.org/10.4028/www.scientific.net/msf.900.40.

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The high interest in the synthesis of mesoporous catalyst demands that novel materials are developed with simple methods capable of improving process yields. In this work, a novel heterogeneous mesoporous catalyst support has been synthesized using mesoporous SBA-15 loaded with mixed bimetal oxides of CeO2 and MgO. Formation of the SBA-15 was actuated in air at room temperature (25°C) and in oven conditions at 100°C after which cerium nitrate and magnesium nitrate precursors were then impregnated into the SBA-15 framework and calcined at 550°C for each of the air and oven crystallization processes. XRD peak patterns confirmed SBA-15 formation and dispersion of nanocrystallites of CeO2 and MgO within the porous framework of SBA-15. Both the air and oven dried processes produced mesoporous MgO-CeO2/SBA-15 catalysts with isotherms that exhibit typical H1 type hysteresis confirming that they possess open-ended cylindrical mesopores. The structural data extracted gave average pore size, pore volume and surface area values in the ranges of 3-5.2 nm, 0.600-2.500 cc/g and 400-500 m2/g respectively which is ideal for several industrial applications.

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Nwaubani, Sunday O. "Waste Steel Slag and their Influence on the Properties of Cement Blends." MRS Advances 3, no. 34-35 (2018): 2027–40. http://dx.doi.org/10.1557/adv.2018.186.

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ABSTRACTThe use of waste is rapidly becoming a supra-disciplinary field in most parts of the world where the use of industrial wastes like fly ash, granulated steel slag, silica fume, and waste fibers in construction has become very popular since the last half of the 20th century. Other forms of industrial wastes are also re-used even for more sensitive applications on soils to upgrade soil texture. For example, waste from bauxite refining (red mud) is known to be extensively re-utilised. These concepts are yet to take tangible hold in Africa, despite the huge resources available. Electric-Arc Furnace Steel slag is a major waste product from the steel industry involving the melting of scrap to make steel in an electric arc furnace. Use of such waste materials in construction alleviates the huge environmental pollution problem which often exists in areas where they are produced and/or dumped. Currently, the material is mainly used in construction works as unbound aggregate for asphalt concrete pavements, or as road base in many countries. However, it consists predominantly of oxides and silicates of magnesium, calcium, aluminium, iron and thus can be used as substitute for cement. This paper compares the effect of utilising this type of Steel slag and Granulated Blast Furness Slag, as partial replacement for Portland cement. The influence of the physical and chemical characteristics of the two materials on the setting time, compressive strength, total porosity and pore-size distribution of cement pastes have been evaluated. For the experimental conditions studied, the result reveal adequate properties for high levels of replacement but suggests that superior qualities, compared with Portland cement concrete is possible only if replacement levels do not exceed about 10%.

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Huang, Zhiqiang, Erol Yilmaz, and Shuai Cao. "Analysis of Strength and Microstructural Characteristics of Mine Backfills Containing Fly Ash and Desulfurized Gypsum." Minerals 11, no. 4 (April 13, 2021): 409. http://dx.doi.org/10.3390/min11040409.

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The utilization of solid wastes (SWs) as a potential resource for backfilling is not only conducive to environmental protection but also reduces the surface storage of waste. Two types of SWs, including fly ash (FA) and desulfurized gypsum (DG), were used to prepare cementitious backfilling materials for underground mined-out areas. Ordinary Portland cement (OPC) was used as cement in mine backfill. To better investigate the feasibility of preparing backfill materials, some laboratory tests, such as uniaxial compressive strength (UCS), scanning electron microscopy (SEM), and energy dissipation theory, were conducted to explore both strength and microstructural properties of backfilling. Results have demonstrated that the main components of FA and DG in this study are oxides, with few toxic and heavy metal components. The ideal ratio of OPC:FA:DG is 1:6:2 and the corresponding UCS values are 2.5 and 4.2 MPa when the curing time are 7 days and 14 days, respectively. Moreover, the average UCS value of backfilling samples gradually decreased when the proportion of DG in the mixture increased. The main failure modes of various backfilling materials are tensile and shearing cracks. In addition, the corresponding relations among total input energy, dissipated energy and strain energy, and stress–strain curve were investigated. The spatial distribution of oxygen, aluminum, silicon, calcium, iron and magnesium elements, and hydration product are explored from the microstructure’s perspective. The findings of this study provide both invaluable information and industrial applications for the efficient management of solid waste, based on sustainable development and circular economy.

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17

Mazurok, Pavel, Tymur Turgunov, Volodymyr Tokarchuk, and Valentin Sviderskiy. "Effect of calcium and magnesium oxides on the properties of expanding cements and plugging mortars." Eastern-European Journal of Enterprise Technologies 4, no. 6 (88) (August 22, 2017): 47–52. http://dx.doi.org/10.15587/1729-4061.2017.108377.

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18

van der Merwe, E. M., Christiena Strydom, and A. Botha. "Hydration of medium reactive industrial magnesium oxide with magnesium acetate." Journal of Thermal Analysis and Calorimetry 77, no. 1 (2004): 49–56. http://dx.doi.org/10.1023/b:jtan.0000033187.61971.1d.

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19

Yeh, Si Jung, J. M. Lo, and C. L. Tseng. "Radiochemical separation by magnesium oxide adsorption and applications." Journal of Radioanalytical and Nuclear Chemistry Articles 124, no. 1 (September 1988): 157–70. http://dx.doi.org/10.1007/bf02035514.

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20

Elangovan, S. V., N. Sivakumar, and V. Chandramohan. "Magnesium doped zinc oxide nanocrystals for photo-catalytic applications." Journal of Materials Science: Materials in Electronics 26, no. 11 (August 4, 2015): 8753–59. http://dx.doi.org/10.1007/s10854-015-3553-7.

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21

Fernandes, Manuel. "Recent Applications Of Magnesium Oxide (MgO) Nanoparticles In Various Domains." Advanced Materials Letters 11, no. 8 (August 1, 2020): 20081543. http://dx.doi.org/10.5185/amlett.2020.081543.

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Oliver, J. B., C. Smith, J. Spaulding, A. L. Rigatti, B. Charles, S. Papernov, B. Taylor, et al. "Glancing-angle–deposited magnesium oxide films for high-fluence applications." Optical Materials Express 6, no. 7 (June 15, 2016): 2291. http://dx.doi.org/10.1364/ome.6.002291.

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23

Chintareddy, Venkat Reddy, and M. Lakshmi Kantam. "Recent Developments on Catalytic Applications of Nano-Crystalline Magnesium Oxide." Catalysis Surveys from Asia 15, no. 2 (February 19, 2011): 89–110. http://dx.doi.org/10.1007/s10563-011-9113-0.

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24

Hamidi, Roya, Davood Kahforoushan, and Esmaeil Fatehifar. "The simultaneous removal of calcium, magnesium and chloride ions from industrial wastewater using magnesium–aluminum oxide." Journal of Environmental Science and Health, Part A 48, no. 10 (August 24, 2013): 1225–30. http://dx.doi.org/10.1080/10934529.2013.776855.

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Abdullah-Hamead, Alaa Aladdin. "Advanced Structured of MgO Thin Film for Bio Applications." Materials Science Forum 1002 (July 2020): 319–30. http://dx.doi.org/10.4028/www.scientific.net/msf.1002.319.

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Extensive efforts to further promoting the Anti-Bacteria and structural properties of thin films to reach reliability and possibility of commercialization, the chemical Tri-metal oxide component was verification as Anti-Bacteria factor in this paper. Pure and mixed thin films of magnesium oxide MgO was prepared by evaporation assisted laser Nedmyum - YAG pulse Nd: YAG laser system, MgO enhanced by adding Ti and Se, at (0.5, 1, 1.5 and 2%) by weight percentage. After that, calcination is done at 400 °C for 30 min. Structural and anti-bacterial growth inspections were performed. Experimental results showed that structural properties have improved significantly with the development of a MgO thin films with tri-metal oxide; Magnesium titanium oxide Mg2TiO4 and Magnesium selenate MgSeO4 phases. Moreover, there has been an enhancement in anti-bacteria properties, which makes these thin films more reliable for protection against bacteria.

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Sirota, V., V. Selemenev, M. Kovaleva, I. Pavlenko, K. Mamunin, V. Dokalov, and M. Prozorova. "Synthesis of Magnesium Oxide Nanopowder by Thermal Plasma Using Magnesium Nitrate Hexahydrate." Physics Research International 2016 (February 17, 2016): 1–4. http://dx.doi.org/10.1155/2016/6853405.

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Magnesium oxide (MgO) nanopowder was synthesized by thermal plasma in a novel thermal DC plasma torch using magnesium nitrate hexahydrate. Magnesium nitrate hexahydrate (Mg(NO3)2·6H2O) was obtained from serpentinite (Mg3Si2O5(OH)4; lizardite) (Halilovskiy array, Orenburg region, Russia). The synthesized samples were characterized by analytical techniques including X-ray diffraction (XRD) and transmission electron microscopy (TEM). XRD and TEM characterization studies confirmed that MgO nanopowder obtained has periclase structure with high purity, and the particle sizes vary within the range of 100 nm to 150 nm. We believe that the present work will promote further experimental studies on the physical properties and the applications of MgO nanopowders in the fields such as high-densed ceramics, additives in bactericide, and refractory products.

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Kujur, Milli Suchita, Ameya Deshpande, Ashis Mallick, and Manoj Gupta. "Development of rare-earth oxide reinforced magnesium nanocomposites targeting biomedical applications." Materials Today: Proceedings 33 (2020): 5414–18. http://dx.doi.org/10.1016/j.matpr.2020.03.135.

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Swaroop, Chetan, and Mukul Shukla. "Nano-magnesium oxide reinforced polylactic acid biofilms for food packaging applications." International Journal of Biological Macromolecules 113 (July 2018): 729–36. http://dx.doi.org/10.1016/j.ijbiomac.2018.02.156.

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Abinaya, S., Helen P. Kavitha, M. Prakash, and A. Muthukrishnaraj. "Green synthesis of magnesium oxide nanoparticles and its applications: A review." Sustainable Chemistry and Pharmacy 19 (April 2021): 100368. http://dx.doi.org/10.1016/j.scp.2020.100368.

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30

Julkapli, Nurhidayatullaili Muhd, and Samira Bagheri. "Magnesium oxide as a heterogeneous catalyst support." Reviews in Inorganic Chemistry 36, no. 1 (January 1, 2016): 1–41. http://dx.doi.org/10.1515/revic-2015-0010.

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AbstractResearchers normally consider MgO as a promising high-surface-area heterogeneous catalyst support, additive, and promoter for many kinds of chemical reactions due to its certain properties, including stoichiometry and composition, cation valence, redox properties, acid-base character, and crystal and electronic structure. The presence of MgO as a support catalyst also modifies the electronic state of the overall catalytic performance by electron transfer between the native catalyst and MgO as support. The influence is clarified by alteration of acid-base properties of the catalyst-supported MgO. Meanwhile, the method, chemical composition, and condition in the preparation of MgO are the important factors affecting its surface and catalytic properties. Therefore, MgO with a high surface area and nanocrystalline structure has encouraging applications for some reactions, including as dry reforming, dehydrohalogenation, oxidative dehydrogenation of butane, nonoxidative dehydrogenation of ethylbenzene, decomposition of CCl

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31

Matabola, Kgabo P., Elizabet M. van der Merwe, Christien A. Strydom, and Frederick J. W. Labuschagne. "The influence of hydrating agents on the hydration of industrial magnesium oxide." Journal of Chemical Technology & Biotechnology 85, no. 12 (November 9, 2010): 1569–74. http://dx.doi.org/10.1002/jctb.2467.

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Petric, Nedjeljka, Vanja Martinac, Miroslav Labor, and Meri Mirosševic-Anzulovic. "Activated Sintering of Magnesium Oxide from Sea Water." Chemical Engineering & Technology 22, no. 5 (May 1999): 451–56. http://dx.doi.org/10.1002/(sici)1521-4125(199905)22:5<451::aid-ceat451>3.0.co;2-p.

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Zhao, Wei Min, Zhong Fang Shi, Zhi Feng Wang, Yong Yan Li, Jian Ding, Bo Young Hur, and Rui Zhao. "Effect of Rare-Earth Elements on the Ignition-Proof Behavior of Industrial Pure Magnesium." Materials Science Forum 654-656 (June 2010): 1464–67. http://dx.doi.org/10.4028/www.scientific.net/msf.654-656.1464.

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The purpose of this research is to investigate effect of rare-earth elements (Y and Dy) on industrial pure Mg through the ignition point test and oxide film analysis. The results show that the 0.5%Y can make the ignition point of pure magnesium about 30°C higher. However, the ignition point of pure magnesium can be multiplied about 50°C by the mixed additions of 0.5wt%Y and 5wt%Dy. The SEM analysis indicates the oxide film of Mg-0.5Y-5Dy is more compact and tenacious than that of Mg-0.5Y. The XRD analysis indicates that the oxide film of Mg-0.5Y-5Dy consists of MgO, Y2O3 and Dy2O3. The most of all the three oxides are Dy2O3, which can prevent magnesium from further oxidizing.

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Li, Siqi, Yecheng Feng, and Jinbo Yang. "Expansion Mechanism and Properties of Magnesium Oxide Expansive Hydraulic Cement for Engineering Applications." Advances in Materials Science and Engineering 2021 (May 5, 2021): 1–9. http://dx.doi.org/10.1155/2021/5542072.

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The expansion mechanism of magnesium oxide expansive hydraulic cement as a novel expansive hydraulic cement was reviewed. Anisotropic crystallization results in crystal growth pressure, causing volume expansion while also increasing the porosity of the whole system. The theoretical relationship between porosity and expansion was analyzed. A basic method is given for predicting the expansion rate considering the expansive agent content in MgO expansive hydraulic cement. A concise equation is proposed for calculating the ultimate expansion. A theoretical relationship between porosity and expansion is presented. The compressive strength and durability of magnesium oxide expansive hydraulic cement were analyzed considering porosity changes and compared with hydraulic cement. If the expansion rate exceeds 0.8%, the mechanical properties and durability changes caused by porosity should be considered. If magnesium oxide expansive concrete is used with restraining in real structure, extra compressive stress is generated and the porosity decreases, compared with that during free expansion. In particular, for strain-hardening cementitious composites, expansion confined with the fibers present in the composite is beneficial for refining cracks and improving the self-healing ability of these materials whenever exposed to humid environments. This paper describes the expansion mechanism and properties of magnesium oxide expansive hydraulic cement for engineering applications.

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Bach, Friedrich Wilhelm, M. Rodman, and A. Rossberg. "High Quality Magnesium Sheets for Automotive Applications." Advanced Materials Research 6-8 (May 2005): 665–72. http://dx.doi.org/10.4028/www.scientific.net/amr.6-8.665.

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In order to make magnesium sheets a competitive material alternative for highly sophisticated light-weight constructions the complete process chain for their production has to be investigated. In laboratory scale new alloys, casting techniques and optimized rolling and heat treatment schedules have been developed. At the Institute for Metal Forming and Metal Forming Machine Tools (IFUM) the forming capacity of magnesium sheets has been investigated. Derived from the strict quality requirements of e.g. the automotive industry, testing methods concerning mechanical properties, corrosion resistance and surface quality have been developed. It has been shown that the controlled development of a suited microstructure is the key factor for ensuring the requested product properties. Together with research and manufacturing partners the results were transferred to industrial practice and a closed loop process chain for the production of high quality magnesium sheets has been established.

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Choi, Young-Wook, and Jee-Hyun Kim. "Sputtering Technique of Magnesium Oxide Thin Film for Plasma Display Panel Applications." Journal of Electrical Engineering and Technology 1, no. 1 (March 1, 2006): 110–13. http://dx.doi.org/10.5370/jeet.2006.1.1.110.

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Sonawane, B. K., M. P. Bhole, and D. S. Patil. "Effect of magnesium incorporation in zinc oxide films for optical waveguide applications." Physica B: Condensed Matter 405, no. 6 (March 2010): 1603–7. http://dx.doi.org/10.1016/j.physb.2009.12.050.

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Ide-Ektessabi, Ari, Hiroshi Nomura, Nobuto Yasui, and Yuji Tsukuda. "Ion beam-assisted deposition of magnesium oxide thin film for PDP applications." Surface and Coatings Technology 163-164 (January 2003): 728–33. http://dx.doi.org/10.1016/s0257-8972(02)00695-3.

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Bhattacharya, Proma, Sarpras Swain, Lopamudra Giri, and Sudarsan Neogi. "Fabrication of magnesium oxide nanoparticles by solvent alteration and their bactericidal applications." Journal of Materials Chemistry B 7, no. 26 (2019): 4141–52. http://dx.doi.org/10.1039/c9tb00782b.

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MgO nanoparticles are synthesized using water, ethanol and aqueous CTAB solution. The nanoparticles synthesized in ethanol exhibited smallest size, maximum reactive oxygen species generation and maximum antibacterial ability, and low haemolysis.

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Choi, Young Wook, and Jeehyun Kim. "Reactive sputtering of magnesium oxide thin film for plasma display panel applications." Thin Solid Films 460, no. 1-2 (July 2004): 295–99. http://dx.doi.org/10.1016/j.tsf.2004.01.066.

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Dubey, Amit, Braj Gopal Mishra, and Divya Sachdev. "RETRACTED: Catalytic applications of ordered mesoporous magnesium oxide synthesized by mesoporous carbon." Applied Catalysis A: General 338, no. 1-2 (April 2008): 20–26. http://dx.doi.org/10.1016/j.apcata.2007.12.015.

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Lock, Jaclyn Y., James Tu, and Hui Nan Liu. "Degradation of Magnesium Alloys in Artificial Urine Solution for Urological Device Applications." Materials Science Forum 783-786 (May 2014): 413–18. http://dx.doi.org/10.4028/www.scientific.net/msf.783-786.413.

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Magnesium-based alloys are promising for various biomedical applications due to their advantageous mechanical and biological properties. In this study, we investigated the potential use of magnesium-based alloys for urological device applications, e.g. a biodegradable and antibacterial ureteral stent. Previous studies showed that magnesium-based samples significantly inhibited bacterial growth and colony formation in artificial urine (AU) solution as compared with the polyurethane-based stent. This current study focuses on long-term magnesium-based sample degradation in AU solution and deionized water. We studied the effects of alloy composition (magnesium alloyed with yttrium or aluminum and zinc) and surface condition (oxide versus metallic surface) on the rate of degradation. Sample degradation was measured by the change in sample mass, pH of immersion solution, and magnesium ion concentration in the solution. Results showed that both alloy composition and surface condition affected the rate of degradation in the AU solution. For instance, magnesium-yttrium alloy degraded the fastest and the presence of the oxide layer increased its degradation rate in the AU solution. The overall degradation rate in the AU solution was in this order (fastest to slowest degrading): MgY_O > MgY > Mg_O > AZ31. Further investigation is necessary to determine the efficacy and safety of magnesium-based biodegradable stents for urological applications.

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Jebur, Qayssar M., Ahmed Hashim, and Majeed A. Habeeb. "Structural, Electrical and Optical Properties for (Polyvinyl Alcohol–Polyethylene Oxide–Magnesium Oxide) Nanocomposites for Optoelectronics Applications." Transactions on Electrical and Electronic Materials 20, no. 4 (July 5, 2019): 334–43. http://dx.doi.org/10.1007/s42341-019-00121-x.

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Zhang, Pu Liang, Bin Liu, Dong Zhang, Yong Wei Tao, Sheng Rong Yang, and Jin Qing Wang. "Ceramic Coatings of Magnesium Alloy for Biomaterial Applications." Key Engineering Materials 434-435 (March 2010): 634–37. http://dx.doi.org/10.4028/www.scientific.net/kem.434-435.634.

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Ceramic coatings were produced on magnesium (Mg) alloy of AZ91D for biomaterial applications by micro-arc oxidation (MAO) and electrodeposition methods. The morphology, microstructure, phase composition and corrosion properties of the prepared coatings were investigated by scanning electron microscopy (SEM), X-ray diffraction (XRD) and potentiodynamic polarization tester, etc. The results indicated that a porous oxide layer was grown on the Mg alloy sheets after MAO process and the compositions of oxides were mainly Mg2SiO4 and MgO. After further electrodeposition and alkaline treatment, a flake-like structure diverging from centre to periphery was grown on the MAO coating and the coating was mainly made up of hydroxyapatite (HA). Moreover, the corrosion resistance of the Mg alloy after being treated with MAO and electrodeposition technique increases obviously, which was evaluated in stimulated body fluid (SBF).

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45

Lischinsky, Joseph, Mario A. Vigliani, and David J. Allard. "Radioactivity in Zirconium Oxide Powders Used in Industrial Applications." Health Physics 60, no. 6 (June 1991): 859–62. http://dx.doi.org/10.1097/00004032-199106000-00009.

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46

Paucar Álvarez, Carlos, Jeniffer S. Caballero Sarmiento, Sidónio C. Freitas, and Claudia García. "Solvothermal Synthesis of Magnesium Oxide-Substituted Hydroxyapatite Nanoparticles as Antibacterial Nanomaterial for Biomedical Applications." Defect and Diffusion Forum 381 (November 2017): 8–14. http://dx.doi.org/10.4028/www.scientific.net/ddf.381.8.

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In order to generate bactericidal effects in the oral cavity, several alternatives have been studied, including the use of silver nanoparticles but presents problems such as toxicity and low biocompatibility. From human-inspired systems, the antibacterial efficiency of the hydroxyapatite nanoparticles depends strongly on the type of composites and nanoparticles size. Several types of hydroxyapatite nanoparticles and their derivatives have received much attention for their antibacterial potential effect, including magnesium oxide nanoparticles. The purpose of this research was to produce a biocompatible antimicrobial compound of nanoparticles of hydroxyapatite doped with magnesium oxide to generate antibacterial effects in the oral cavity. The solvothermal method was used to produce hydroxyapatite nanoparticles doped with magnesium oxide. Antibacterial activity of as synthesized nanopowders against cariogenicStreptococcus mutanswas tested by the CLSI disk-diffusion method. As result of this research, hydroxyapatite doped with magnesium nanoparticles (nHAMg) were successfully synthetized by the solvothermal method where in structural characterization indicates magnesium substitution and FTIR analysis gives a broader spectrum of the nHAMg when compared to pure nHA and crystallite size of nHA decreased. Furthermore, results of antibacterial assays showed that nHAMg allow to inhibit the grown ofS. mutansby showing a halo of inhibition around the discs. Moreover, this antibacterial activity is enhanced by the addition of silver ion in an amount below to known toxic concentration, showing a synergetic effect that can further potentiate even more these HA nanoparticles. This work demonstrates that solvothermal method is a promising synthesis way for producing antibacterial hydroxyapatites nanoparticles for biomedical applications such as oral tissue regeneration.

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Yazhenskikh, Elena, Tatjana Jantzen, Klaus Hack, and Michael Müller. "Critical thermodynamic evaluation of oxide systems relevant to fuel ashes and slags: Potassium oxide–magnesium oxide–silica." Calphad 47 (December 2014): 35–49. http://dx.doi.org/10.1016/j.calphad.2014.05.006.

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Gangwar, Jitendra, Bipin Kumar Gupta, and Avanish Kumar Srivastava. "Prospects of Emerging Engineered oxide nanomaterials and their Applications." Defence Science Journal 66, no. 4 (June 28, 2016): 323. http://dx.doi.org/10.14429/dsj.66.10206.

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<p>This review article mainly focused on the recent progress on the synthesis and characterization of emerging artificially engineered nanostructures of oxide materials as well as their potential applications. A fundamental understanding about the state-of-the-art of the synthesis for different size, shape and morphology, which can be tuned to the desired properties of oxide nanomaterials have discussed in details in this review. The present review covers the a wide range of artificially engineered oxide nanomaterials such as cadmium-, cupric-, nickel-, magnesium-, zinc-, titanium-, tin-, aluminium-, and vanadium-oxides and their useful applications in sensors, optical displays, nanofluids and defence.</p>

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Petric, Nedjeljka, Bartul Petric, and Vanja Martinac. "Influence of boron oxide (B2O3) on isothermal sintering of magnesium oxide obtained from seawater." Industrial & Engineering Chemistry Research 31, no. 7 (July 1992): 1819–22. http://dx.doi.org/10.1021/ie00007a031.

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50

Papenberg, Nikolaus P., Stefan Gneiger, Irmgard Weißensteiner, Peter J. Uggowitzer, and Stefan Pogatscher. "Mg-Alloys for Forging Applications—A Review." Materials 13, no. 4 (February 22, 2020): 985. http://dx.doi.org/10.3390/ma13040985.

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Interest in magnesium alloys and their applications has risen in recent years. This trend is mainly evident in casting applications, but wrought alloys are also increasingly coming into focus. Among the most common forming processes, forging is a promising candidate for the industrial production of magnesium wrought products. This review is intended to give a general introduction into the forging of magnesium alloys and to help in the practical realization of forged products. The basics of magnesium forging practice are described and possible problems as well as material properties are discussed. Several alloy systems containing aluminum, zinc or rare earth elements as well as biodegradable alloys are evaluated. Overall, the focus of the review is on the process control and processing parameters, from stock material to finished parts. A discussion of the mechanical properties is included. These data have been comprehensively reviewed and are listed for a variety of magnesium forging alloys.

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