Alumina–zircon refractory materials for lining of the basin of glass furnaces: Effect of processing technique and TiO2 addition

Khattab, R.M.; Hanna, Samir B.; Zawrah, M.F.; Girgis, L. G.

doi:10.1016/j.ceramint.2014.09.100

Cited by 16 publications

(3 citation statements)

References 12 publications

(10 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…at high temperatures (>1000 °C), which require the employment of expensive electro-melted Al 2 O 3 refractories [10]. In order to decrease the wear of the materials involved with a lower cost, different solutions have been proposed [5][6][11][12][13][14]. Among these, thermally sprayed coatings could be an alternative solution to protect the cheap pressed & sintered refractories against tribological failures produced at high temperature.…”

Section: Introductionmentioning

confidence: 99%

Tribological performance at high temperatures of alumina coatings applied by plasma spraying process onto a refractory material

Franco

Ageorges

López

et al. 2019

Surface and Coatings Technology

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Tribological performance at high temperatures of alumina coatings applied by plasma spraying process onto a refractory material

Franco

Ageorges

López

et al. 2019

Surface and Coatings Technology

View full text Add to dashboard Cite

“…In-depth literature studies have been conducted on zircon sand characterization and its uses [8,[13][14][15][16][17][18][19][20][21]. Nonetheless, there is little information in these data about the precise methods for evaluating zircon sand characterization in Nigeria aiming to reveal the uses, effectiveness of the characterization, and quality of the local product and render a parallel comparative evaluation between the local product and the globally accepted zircon sand.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Nigerian Zircon Sand and Its Suitability for Different Industrial Applications

Okoli,

Agboola,

Onwualu

et al. 2023

Minerals

View full text Add to dashboard Cite

This paper describes the potential industrial use of zircon from Nigeria (Plateau, Nasarawa, Kano, Kaduna, Bauchi, and Adamawa states). Different techniques, equipment, and indices such as scanning electron microscope, energy dispersive X-ray fluorescence, X-ray diffraction, Fourier transform infrared spectroscopy, specific gravity, refractive index, pH, and hardness were used to examine the samples. The X-ray diffraction showed predominantly quartz, zirconium oxide, and other heavy minerals. All twelve samples showed the presence of Zr-O, SiO42−, Zr-OH, and OH, with pH values ranging from 7.3 to 7.8. Six of the zircon samples had a refractive index between 1.4 and 12.5. The hardness values ranged from 0.0021 to 0.0703 GPa, while the elastic moduli were between 0.00558 and 0.9593 GPa. Four of the twelve untreated zircon samples with specific gravities above 4.2 g/cm3, which is the United States Geological Survey minimum recommended standard for zircon sand, needed to be upgraded to increase the ZrO2 weight percentages and purity toward improving their suitability for zircon-reinforced composites applications in aerospace and also for ceramic, foundry, building and construction, and refractory industries. The study’s findings can be incorporated by the industries into their businesses for the development of novel industrial materials as well as the processing methods and procedures for beneficiation of the mineral for value-addition.

show abstract

“…The fabrication of AMZ composites with homogenous dispersion of mullite and zirconia have always been a challenge. The major processing routes for producing AMZ composites have been reported as conventional reaction sintering of related oxides, 7 direct sintering of the mixture of alumina, zirconia, and silica, 8 sol‐gel method using various sources, 1 slip casting of alumina and zircon, 6 and gel casting 9 . Reaction sintering of alumina and zircon has proved to be an inexpensive and simple route for preparing AMZs which can be easily scaled‐up.…”

Section: Introductionmentioning

confidence: 99%

Development of AMZ composites via mutual attraction of particles in wet processing

Khorsand

Majidian

Farvizi

2020

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

In this paper, three approaches were investigated for preparing alumina‐mullite‐zirconia (AMZ) composites. The weight ratio of alumina to zircon was selected to be 85/15. In the first approach, common well‐known reaction sintering or solid‐state mixing of alumina and zircon were used. In the second approach, suspensions of the raw materials were prepared to examine the effect of wet processing method. The third approach was based on the use of aluminum alkoxide coated zircon and alumina. The sintering of samples was carried out at the temperature of 1630°C for 3 hours. Phase composition and Rietveld refinement method, microstructural observation, EDS analysis, as well as physical and mechanical properties were used and determined to characterize the sintered samples. The results showed that aluminum alkoxide coating can develop the mentioned reaction sintering and mullite formation. However, the desired mechanical properties were not obtained. Wet processing approach resulted in more interesting data about the formation of mullite and could improve the microstructure homogeneity of final composites. Higher amount of tetragonal zirconia, good densification, high hardness, and fine microstructure were obtained by the wet approach. These interesting results were attributed to the fine discrete particles provided by mutual attraction in the wet preparation method.

show abstract

Alumina–zircon refractory materials for lining of the basin of glass furnaces: Effect of processing technique and TiO2 addition

Cited by 16 publications

References 12 publications

Tribological performance at high temperatures of alumina coatings applied by plasma spraying process onto a refractory material

Tribological performance at high temperatures of alumina coatings applied by plasma spraying process onto a refractory material

Characterization of Nigerian Zircon Sand and Its Suitability for Different Industrial Applications

Development of AMZ composites via mutual attraction of particles in wet processing

Contact Info

Product

Resources

About