Development of waterproof engobe layer for ceramic wall tiles

Tarhan, Müge; Tarhan, Baran

doi:10.1007/s10973-019-08893-3

Cited by 6 publications

(4 citation statements)

References 17 publications

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“…Engobe for ceramic tiles was investigated in [10], using frits based on diopside, zircon, and titanium. The introduction of these components helps increase the opacity of coatings and their permeability to form a high-quality intermediate layer between the ceramic base and glaze.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Designing engobe coatings for ceramic bricks

Khomenko

Tsyhanenko

et al. 2023

EEJET

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This paper reports research into the development of compositions of engobe coatings for ceramic bricks and investigating the influence of technological production factors on their physical and mechanical properties. The results of this work make it possible to solve the task of expanding the range and improving the operational properties of building ceramics. The data obtained have made it possible to establish physicochemical processes occurring during the formation of the phase composition and structure of engobe coatings. This has revealed the possibilities for designing engobe for various types of ceramic bricks, which differ in technological parameters of production and operational properties. The charge compositions were designed in a three-component system "refractory clay – quartz sand – cullet", taking into account the possibility of their practical implementation in large-tonnage production. It has been established that the most important condition for obtaining high-quality products is the correlation of shrinkage and temperature coefficients of linear expansion of the ceramic shard and engobe coating. To prevent various defects, these indicators should vary by no more than 10 %. The crystal-phase composition of engobe is represented by b-quartz and a small amount of devitrite, which are evenly distributed in a vitreous dense layer of coating on the surface of the ceramic shard. Distinctive features of the results relate to the fact that a solution to the problem of designing engobe coatings for ceramic bricks has been proposed and the physicochemical bases of production have been highlighted. This paper also suggests ways to achieve coordination of finely dispersed coatings with coarse-grained ceramic masses by shrinkage and thermal processes. The results reported here could be applied in typical production of face, clinker, and in some cases – ordinary brick or ceramic stone with firing temperatures of 950–1150 °C

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

Designing engobe coatings for ceramic bricks

Khomenko

Tsyhanenko

et al. 2023

EEJET

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“…Bünye renginin kapatılmasında önemli bir görev üstlenir [2]. Isıl genleĢme katsayısının ayarlanmasında kullanılarak, sır ile bünye arasında genleĢmeden dolayı oluĢacak deformasyonların önlenmesini sağlar [4,5,6].…”

Section: Giriş *unclassified

Yer Karosu Uygulamaları İçin Konya Bölgesinden (Türkiye) Temin Edilen Kil Minerallerinin Zenginleştirilmesi ve Karakterizasyonuna Genel Bir Bakış

AKDOĞAN,

BÜYÜKTEPE,

ERCİOĞLU AKDOĞAN

2023

Kocaeli Üniversitesi Fen Bilimleri Dergisi

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Doğada bulunan kil minerallerinin, fizikokimyasal özelliklerinin tespit edilmesinden sonra saflaştırılarak ve işlenerek kullanım alanları geliştirilebilmektedir. Kil minerallerinin türü, kimyasal bileşimi ve oranı bir kilin kalitesini belirlemektedir. Bu sebeple, killerin yapılarında bulunan safsızlıklardan dolayı bir zenginleştirme işlemi ile temizlenmesi gerekmektedir. Buradan yola çıkarak bu çalışmada, ülkemizde farklı kalitelerde bulunan bu doğal kaynakların daha iyi değerlendirilmesi ve ülke ekonomisine daha çok katkısı olacak şekilde kullanılması amaçlanmıştır. Temin edilen kil numunelerine uygun saflaştırma prosesleri uygulanmıştır. Zenginleştirilen killerin harmanlama işlemi sonrasında seramik üretimde kullanılan angop reçetesinde alternatif hammadde olarak kullanımının uygunluğu araştırılmıştır. Saflaştırılan kil numunelerinin X-Işını Kırınım yöntemi ile hammadde içeriğindeki elementlerin kantitatif analizi yapılarak kimyasal içerikleri tespit edilmiştir. Bunun yanı sıra, pişirim sonrası angop içerisinde oluşan fazların tespiti için X-Işınları Difraktometresi kullanılarak malzemelerin kristallografik özellikleri incelenmiştir. Optik dilatometre cihazı ile killerin termal davranışları incelenmiştir. Zenginleştirilmiş killerin kullanıldığı angop reçetelerinin ısıl genleşme analizi ile boyutsal değişimlerinin sıcaklığın fonksiyonu olarak ölçümü gerçekleştirilmiştir. Seramik endüstrisinde, angop reçetesi içerisinde alternatif hammadde olarak kullanımı uygun bulunmuştur.

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“…After tiling, the wall tile absorbs water. This absorbed water might appear as traces of water on the tile surface called watermark if the engobe layer is permeable and this is one of the biggest problems for tile manufacturers [10,11].…”

Section: Introductionmentioning

confidence: 99%

“…By increasing the thickness of the engobe layer, the amount of porosity is reduced, leading to the elimination of watermarks on the tile surface. Furthermore, this increase in engobe thickness enhances opacity, improving the overall appearance of the tile [3][4][5][6][7][8][9][10][11][12][13][14][15]. The engobe layer acts as a barrier to water transfer from the wall tile body and color change in the finished product [16].…”

Section: Introductionmentioning

confidence: 99%

Effect of SiO2/Al2O3 ratio on the whiteness of ceramic tile engobes with low zircon content

Varışli,

Taşkıran,

Öztürk

et al. 2023

Cerâmica

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Micronized zircon (ZrSiO 4 ) is used as an opacifier in the production of engobes, opaque glazes, and floor tile bodies. Elevated price levels incentivize researchers to develop alternative engobe formulations with reduced zircon ratios. In this study, new engobes with low zircon content were developed with varying SiO 2 -Al 2 O 3 mixtures. The effect of the SiO 2 /Al 2 O 3 ratio on the performance and opacity of the wall and floor tile engobes was investigated. It has been observed that the amount of zircon in the sample compositions could be reduced up to 40% by optimizing the refractoriness-water absorption balance of the engobe with the SiO 2 /Al 2 O 3 ratio while keeping the opacity in the preferred levels. The color difference (∆E) value relative to the standard surface was below 1, which is acceptable for visual perception for all the samples. Other measurements such as water absorption and firing shrinkage of the floor tile samples were found to be compatible with the standard composition. Keywords: ceramic, engobe, opacifier, SiO 2 /Al 2 O 3 ratio, tile, zircon.

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Development of waterproof engobe layer for ceramic wall tiles

Cited by 6 publications

References 17 publications

Designing engobe coatings for ceramic bricks

Designing engobe coatings for ceramic bricks

Yer Karosu Uygulamaları İçin Konya Bölgesinden (Türkiye) Temin Edilen Kil Minerallerinin Zenginleştirilmesi ve Karakterizasyonuna Genel Bir Bakış

Effect of SiO2/Al2O3 ratio on the whiteness of ceramic tile engobes with low zircon content

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