From December 17-19, the 2023 Annual Academic Conference of the Ceramics Branch of the Chinese Ceramic Society was held in Dehua, Fujian, the international ceramics capital. Vice President Huang Jianfeng led a delegation of 11 faculty members from the School of Materials Science to attend. Representatives from our school presented reports including “Research on the…
In recent years, China’s ceramics industry has produced an iron-red glaze product that has been well received both at home and abroad. When fired in an oxidizing atmosphere, this glaze presents a deep, so-called “sea-cucumber brown” color, dotted with broad-bean-sized orange-red patches, giving the whole piece a rare, luxurious, and dignified appearance. Under a reducing…
This study focuses on a type of iron crystalline glaze known as iron-red gold-ring glaze. Building on the development of iron-red gold-ring glaze, it explores the process factors that influence its formation. Potassium feldspar, talc, quartz, kaolin, tricalcium phosphate, barium carbonate, and ferric oxide were used as raw materials to prepare the iron-red gold-ring glaze.
This paper, through repeated experimentation, selects an optimized base formula for iron-red crystalline glaze, and analyzes the effects of Fe2O3 content, bone-powder content, talc content, the firing regime, glaze-layer thickness, and the addition of coloring metal oxides on the glaze surface and the red-flower crystallization. Practice has shown that the mechanism by which red flowers…
An orthogonal experimental method was used to examine how the silicon-aluminum ratio, iron oxide content, and bone-ash content affect the crystal-flower pattern on the glaze surface. The experimental results show that when the silicon-aluminum ratio is 7.5, the bone-ash content is 14%, and the iron oxide content is 13%, the glaze surface displays an artistically…
Through the development of firing iron-red glaze in a roller kiln, this study provides a formulation basis for applying iron-red glaze to porcelain glazed-tile systems in new product development. The experiment analyzes, from a formulation perspective, the precipitation amount of the main crystalline phase “alpha-Fe2O3” in iron-red glaze, offering reference value for the production of…
Xu Lihua A phase-separated iron-red glaze was prepared using potassium feldspar, quartz, Suzhou clay, talc, cattle bone ash, and iron oxide as raw materials. The effects of the glaze formula and glaze-layer thickness on the phase-separated iron-red glaze were studied, and the microstructure of the iron-red glaze was characterized using X-ray diffraction (XRD), scanning electron…
Abstract: A phase-separated iron-red glaze was prepared using potassium feldspar, bone ash, ferric oxide, calcined talc, quartz, and kaolin as raw materials. The changes in glaze surface characteristics caused by the SiO2/Al2O3 molar ratio and the Fe2O3-P2O5 composition were investigated. Combined with XRD, scanning electron microscopy (SEM), and energy-dispersive spectroscopy, qualitative and quantitative analysis of…
Iridescent iron-red crystalline glaze is a precious crystalline art glaze. Successfully firing a round, three-dimensional, lustrous, and pure-colored iridescent iron-red crystalline glaze requires not only a reasonable formula and strict process control, but also demanding firing conditions. Firing iron-red crystalline glaze in an electric kiln offers advantages such as simple operation, accurate temperature, high yield,…
Introduction Iridescent iron-red crystalline glaze is also known as iron-red glaze or cinnabar-spot glaze. In the Chaoshan region it is sometimes called “iridescent tenmoku.” It is a prized crystalline art glaze, characterized by shimmering, circular crystal blooms ranging from orange-red to golden yellow scattered across a brown or tawny-brown glaze surface. Under light, these crystals…