Isothermal corrosion testing of frit furnace refractories

Balıkoğlu, Fatih; Akkurt, Sedat

doi:10.1016/j.ceramint.2009.06.002

Cited by 3 publications

(3 citation statements)

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“…Corrosion of refractory materials could be mitigated through a wide variety of solutions, including via changes to the intrinsic microstructure, chemistry, and phases of the refractory, as well as changes designed to alter the specific reaction products between the refractory and the surrounding environment . In one study, refractory microstructures in crucibles were altered to enhance corrosion resistance by simply changing the conditions under which they were manufactured .…”

Section: Common Failure Modes Of Precast Monolithicsmentioning

confidence: 99%

Engineering resilience with precast monolithic refractory articles

Goski¹,

Lambert²

2019

Int J Ceramic Engine & Sci

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Precast refractory ceramic shapes have had well-known benefits over other refractory lining methods: consistent and controlled manufacturing processes with faster turnaround than traditional cast-in-place monolithic refractories, reduced labor cost over classic brick installations, and, if well designed, simple repair assemblies. By analyzing the common failure modes of precast monolithic shapes, a distinct method to enhance these advantages was theorized. Through modeling and in-field testing, the use of multicomponent and heterogeneous composite refractory systems incorporating high-temperature reinforcement structures increased reliability and provided more predictable modes of failure. K E Y W O R D Scastables, mechanical properties, refractories, stress, thermal shock/thermal shock resistance 170 | GOSKI and LaMBERT 2 | COMMON FAILURE MODES OF PRECAST MONOLITHICSThe same modes of failure would be found in precast monolithic shapes as most other refractory materials used in industrial applications. While failure modes vary widely, two of the most prevalent causes for end of service have been found to be corrosion and/or mechanical failure.How to cite this article: Goski D, Lambert M. Engineering resilience with precast monolithic refractory articles. Int J Ceramic Eng Sci. 2019;1: 169-177. https ://doi.

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Section: Common Failure Modes Of Precast Monolithicsmentioning

confidence: 99%

Engineering resilience with precast monolithic refractory articles

Goski¹,

Lambert²

2019

Int J Ceramic Engine & Sci

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“…Wear of refractories in contact with metallurgical slag (e.g. in steel making) and molten glasses (in frit production) was studied extensively [10][11][12]. Wear can be due to chemical corrosion, physical erosion, or in general by the effect of both of these phenomena [13].…”

Section: Introductionmentioning

confidence: 99%

Corrosion of Industrial Frit Furnace Refractories: A Postmortem Study

Özcan¹,

Akkurt²

2016

ANADOLU UNIVERSITY JOURNAL OF SCIENCE AND TECHNOLOGY a - Applied Sciences and Engineering

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Microstructural and phase analyses of corroded frit furnace refractories forming the side walls and the bottom of an industrial frit furnace is reported in this study. Reflected light optical microscopy, scanning electron microscopy, energy dispersive spectroscopy, and x-ray diffraction tools were used for the analyses. The microstructural analysis in combination with the saturation solubilities information in the phase diagrams was used to predict the corrosion behavior of the refractories. The frit and the refractory types were compared qualitatively for the dissolution potential and corrosion mechanisms. The dissolution of the refractory material was direct (congruent) for both the side wall refractories and bottom pavers. The first push exudation phenomenon was determined to be effective for the increase of porosity and pore dimensions which in turn caused accelerated wear rates when combined with corrosion. The corrosive potential of the transparent frit for corundum, mullite, and glassy phase in the refractories was determined to be excessive. The dissolution of these species in the molten transparent frit was predicted to start at temperatures between 1000-1340 o C while the operating temperature was 1470 o C. The decrease in the extent of corrosion by zirconia inclusion either in the refractories or in the molten glass compositions was qualitatively discussed.

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“…Diffusion of these elements across the interface produces a glassy layer which differs in composition with the ZAS glassy phase and slows down the migration of the diffusing elements. [5][6][7][8][9][10][11] Corrosive effect of the lead silicate glass on refractories has been the subject of many investigations. Pavlovskii et al, 12 for example, have studied the corrosion of corundum, mullite-corundum and mullite in different lead silicate melts.…”

Section: Introductionmentioning

confidence: 99%