Effect of the colloidal zirconia on corrosion resistance of low-cemented alumina mixes against steel slag

Ebadi, Mehdi; Majidian, Hudsa; Salahi, E.; Faeghinia, A.

doi:10.1080/21870764.2020.1847423

Cited by 3 publications

(2 citation statements)

References 13 publications

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“…studied the preformed spinel castable with distribution coefficient q = .24 and found that adding nano‐alumina particles in the preformed spinel castable increases the flowability value but decreases the working time. Effect of addition of colloidal zirconia at 1, 2, and 4 wt.% on the corrosion resistance for alumina–magnesia castable with distribution coefficient, q = .23, showed 80 that 2‐wt.% colloidal zirconia resulted in best corrosion resistance.…”

Section: Effect Of Additives On Alumina‐spinel Castablementioning

confidence: 99%

Alumina‐spinel castable for steel ladles: An overview

Kumar

Sarkar

2022

Int J Applied Ceramic Tech

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Alumina‐spinel castable has excellent refractory properties, including high volume and thermal stability, good hot strength, and excellent resistance against corrosion, erosion, and thermal spalling. Excellent refractory properties have made it a preferred lining for steel ladles, reducing the erosion and corrosion of molten metal and slag and improving the ladle life and efficiency for decades. These castables are also significant for the replacement of chrome‐bearing refractories that cause several health hazards. The current review paper covers preformed and in situ spinel containing alumina castables. It focuses on the importance of these castables in the sidewall and bottom portion of the steel ladle in detail, the effect of spinel and MgO content, and the factors affecting castable properties. The review also covers the final properties of castable and the application areas of alumina‐spinel castable in steel ladle, purging plugs, and RH‐degasser.

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Section: Effect Of Additives On Alumina‐spinel Castablementioning

confidence: 99%

Alumina‐spinel castable for steel ladles: An overview

Kumar

Sarkar

2022

Int J Applied Ceramic Tech

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“…At present, researchers have carried out a lot of studies on selection of alkali metals of silicate, and properties modification of film forming material. The chemical formula of alkali metals silicate can be expressed as M 2 O•nSiO 2 (M = Li, Na and K), where n is the modulus of alkali metal silicate, that represents the ratio of moles number of silicon dioxide to alkali metal oxide and is a dimensionless parameter [26]. Study shows that different modules of alkali silicate have a great influence on the coatings performance [27,28].…”

Section: Introductionmentioning

confidence: 99%

Molecular Dynamics Simulation of Interface Properties between Water-Based Inorganic Zinc Silicate Coating Modified by Organosilicone and Iron Substrate

Gao¹,

Xiong²,

Zhang³

et al. 2023

Journal of Renewable Materials

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The interface properties of Fe(101)/zinc silicate modified by organo-siloxane (KH-570) was studied by using the method of molecular dynamics simulation. By calculating the temperature and energy fluctuation of equilibrium state, equilibrium concentration distribution, MSD of layer and different groups, and interaction energy of two interface models, the influencing mechanism on the interface properties of adding organosiloxane into coating system was studied at the atomic scale. It shows that the temperature and energy of interface oscillated in a small range and it was exited in a state of dynamic equilibrium within the initial simulation stage (t < 20 ps). It can be seen from the multiple peak states of concentration distribution that the iron substrate, organo-siloxane and zinc silicate are distributed in the form of a concentration gradient in the real environment. The rapid diffusion of free zinc powder in zinc silicate coating was the essential reason that affected the comprehensive properties of coating. The interface thickness decreased from 7.45 to 6.82 Å, the MSD of free zinc powder was effectively reduced, and the interfacial energy was increased from 104.667 to 347.158 kcal/mol after being modified by organo-siloxane.

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