Catalogue Search | MBRL
Are you sure you want to remove the book from the shelf?
{{itemTitle}}
7,220
result(s) for
"Glazes"
Sort by:
Ceramic technology. How to characterise ceramic glazes
Glazes add value to ceramic, improve its appearance (colour and shine) and make it waterproof. Through the choice of colours and designs, glazes made ceramics fashionable, even luxurious, and therefore, an object of trade. Each region and ruling dynasty developed its own style or trademark which makes them particularly suitable for dating purposes. Therefore, the study and analysis of glazes offers direct information about the acquisition of technical skills (technology), trade of specific materials (inter-regional links), migrations and the introduction/adoption of new trends. A ceramic glaze is a thin glassy layer fused to the surface of a ceramic body through firing. The interaction between the glaze and the ceramic body results in the interdiffusion of elements between both. A glaze consists mainly of an amorphous phase, but also includes bubbles, cracks and crystalline phases (undissolved compounds and crystals formed during the firing). Finally, the glazes were also decorated, and a large variety of materials and methods of applying the decorations were used. In this chapter, we present a summary of the technical characteristics of glazes (composition, microstructures and technical requirements), their discovery and use throughout history and decorative techniques. The methodology and analytical techniques to obtain the information are also discussed.
Journal Article
Correction: A Generative Model for Measuring Latent Timing Structure in Motor Sequences
Citation: Glaze CM, Troyer TW (2012) Correction: A Generative Model for Measuring Latent Timing Structure in Motor Sequences.
PLoS ONE 7(10): 10.1371/annotation/ae2a9c7b-37fd-4aae-a9df-edbf8e7d99b8. https://doi.org/10.1371/annotation/ae2a9c7b-37fd-4aae-a9df-edbf8e7d99b8
Journal Article
The Preparation and Properties of Semi-conductive Glaze for Electric Ceramics
With the continuous development of the types and properties of electric porcelain glazes, electric porcelain insulators have been widely used in the power grid industry. Electric porcelain semiconductive glaze is a type of glaze with conductive properties formed by adding semiconductor materials to ceramic glaze and processing it through special techniques. The purpose of this topic is to study and explore the preparation process and properties of electric ceramic semiconducting glaze, providing new ideas for the development of the ceramic glaze field. We used experimental methods to transform ZnO and SnO 2 powders into electrically conductive ceramic glaze by adding them to the glaze slurry. Conduct performance tests on the glaze and sintered glaze surface to study the changes in glaze properties under different raw materials, contents, and temperature treatments, in order to determine the optimal formula for the glaze. Through research, it has been found that with the increase of metal oxides, the various properties of the glaze are enhanced. Zinc oxide glaze has the best Vickers hardness at 1300 °C, while tin oxide glaze has the best hardness at 1250 °C, the Vickers hardness is 539HV.
Journal Article
Correction: Du et al. Integrating Fly Ash into High-Temperature Ceramic Glazes: Achieving Sustainability, Cost-Effectiveness, and Aesthetic Appeal. Sustainability 2025, 17, 8017
The authors would like to make the following corrections about the published paper [...]
Journal Article
Observation furnace for the monitoring of the melting process of glass-ceramic precursors
Glass-ceramic glazes achieve better mechanical and electrical properties compared to the traditional glazes. Nevertheless, they have not been employed for the surface treatment of high-voltage insulators so far. For the production of glass-ceramic glaze, it is necessary to melt the precursor mixture, and then quickly cool it to form the so-called frits. Afterwards, the glass-ceramic glaze is prepared from the as-prepared frits. Therefore, it is important, that the chemical composition of frits is consistent with the chemical composition of the future glass-ceramic glaze. Moreover, in order to minimize the energy needed for the preparation of the frits, the melting of the raw materials needs to be studied and adjusted. A melting temperature not exceeding 1400 °C is desirable, as the firing temperature of the ceramic insulators is ∼1350 °C. This paper presents and describes the equipment used for the observation of the melting progress of ceramic samples during the thermal treatment.
Journal Article
Effect of P2O5 addition on anorthite based glass-ceramic glazes
Anorthite-based glazes are highly valued in the ceramics industry for their ease of crystallization under fast-firing conditions and their ability to impart excellent mechanical and aesthetic properties. This study investigates the effects of P
2
O
5
on the thermal properties, microstructure, microhardness, and optical characteristics of anorthite-based glazes. The results indicate that the addition of P
2
O
5
led to a reduction in both the glass transition temperature and crystallization temperature of the glazes. Furthermore, the increased intensity of the exothermic peak associated with crystallization suggests a greater amount of crystal formation in the P
2
O
5
-added glazes. In all compositions, anorthite was identified as the dominant phase. Moreover, an increased P
2
O
5
content resulted in a higher number of anorthite crystals, while concurrently reducing their size. Glazes with P
2
O
5
addition exhibited higher hardness values compared to those without P
2
O
5
. This outcome is attributed to the enhanced crystallization of the anorthite phase, as confirmed by DTA, XRD, and SEM analyses.
Journal Article
Preparation and Application of Apatite–TiO2 Composite Opacifier: Preventing Titanium Glaze Yellowing through Pre-Combination
In order to enhance the degree of binding reaction of TiO2 in titanium-containing ceramic glazes and prevent the reaction of its transformation into rutile to eliminate the yellowing phenomenon of the glaze surface, an apatite–TiO2 composite opacifier (ATO) was prepared through the mechanical grinding of hydroxyapatite and anatase TiO2. The properties, opacification mechanism, and yellowing inhibition of the prepared ceramic glazes were studied. The results show that the ATO is characterized by a uniform coating of TiO2 on the surface of the apatite and the formation of close chemical bonding between the apatite and TiO2. The ceramic glaze surface when using an ATO has a white appearance and excellent opacification performance. When an ATO was used, the L*, a*, and b* values of the glaze were 89.99, −0.85, and 3.37, respectively, which were comparable to those of a ZrSiO4 glaze (L*, a*, and b* were 88.24, −0.02, and 2.29, respectively). The opacification of the glaze was slightly lower than that of the TiO2 glaze (L* value was 92.13), but the appearance changed from yellow to the white of the TiO2 glaze (b* value was 9.18). The ceramic glaze layer when using an ATO mainly consists of titanite, glass phase, and a small amount of quartz, and the opacification mechanism is the crystallization of the generated titanite. ATOs can play an active role in solving the critical problem that arises when TiO2 replaces ZrSiO4 as an opacifier.
Journal Article
Microscopic-Scale Examination of the Black and Orange–Yellow Colours of Architectural Glazes from Aššur, Khorsabad and Babylon in Ancient Mesopotamia
Three major corpora of architectural glazed bricks from Ancient Mesopotamia dating to the Neo-Assyrian (Aššur and Khorsabad sites) and the Neo-Babylonian (Babylon site) Periods have been submitted to an in-depth comparative study of the orange–yellow and black glazes. Distinct hues in the orange–yellow range were observed according to the archaeological site. They appear to have been well mastered by the glassmakers, consisting in the ex situ preparation of the antique lead antimonate pigment and its mixing with transparent soda-lime glass frit or with the glass-forming components. The intentional addition of hematite or of Cu2+ colouring ions in a controlled amount is suggested in two cases. SEM-EDX and Raman analysis of the lead antimonate pigments have pointed out different chemical substitutions in their pyrochlore structure, mainly Fe3+ in the Sb5+ site and Ca2+ in the Pb2+ site, the proportion of which being correlated to the pigment shade (from pale yellow to orange–red). Part of these substitutions arises from the chemical reaction of the pigment with the hematite and glass melt during firing. Regarding the black glazes, an unexpected colouring technique involving copper sulphide nanoparticles together with the chromophore Fe3+-S2− is highlighted for Khorsabad (8th century BC) and for Babylon (6th century BC). For Aššur blacks, the study reveals a change in their colouring technique between the 9th and 8th centuries BC, from a colouration with Mn oxides to an enigmatic one that could also have involved copper sulphide nanoparticles.
Journal Article
Effect of particle size distribution on the properties of celsian based glazes
The microstructure and surface properties of ceramic glaze are influenced by chemical composition, particle size distribution, glaze application conditions, and firing parameters. This study specifically focused on the influence of glaze particle size distribution on the thermal behavior, microstructure, and surface appearance of barium frit based ceramic glaze in the floor tile firing process. The investigation involved examining the impact of four distinct particle size dimensions (d50: 5.7 μm, 6.8 μm, 7.5 μm, 10.9 μm) on the glaze properties by using hot stage microscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), color and gloss measurements. The studies indicated that celsian is the dominant phase in the glaze structure. The sintering and softening temperatures of glazes decreased with the increase of milling time. A decrease in the particle size of the glaze slurry increased the whiteness index. As the average particle size (d50) of the glaze decreased, the number of crystals was also increased. The investigation results also suggested a relation between specular reflection and milling time. As the milling time extended, there was a corresponding increase in the magnitude of glossiness.
Journal Article