Open Access

Downloads

Download data is not yet available.

Abstract

Inorganic additives are often added to adjust the rheological properties of the ceramic glaze suspensions. However, additives will change the chemical compositions of the ceramic glazes and thus their temperature characteristics, including melting temperatures. The most common glaze suspensions are a mixture of frits and kaolin. The kaolin is used as an anti-thixotropy agent to regulate the rheology of the glaze suspensions. However, the kaolin contains aluminum oxide (Al2O3) and silica oxides (SiO2), which will change the properties of the ceramic glazes, especially their melting temperature. Studying the influence of kaolin on the melting temperature range of ceramic glazes is always a task that ceramic factories often have to perform. In the methods of studying glaze melting temperature, using heating microscopy (HM) to study the continuous change of glaze with firing temperature by analyzing image data gives quick information quickly and brings high economic efficiency. In this study, based on data analysis obtained from HM, the authors proposed an empirical equation to determine the melting point of glaze depending on the chemical composition of added kaolin with a different concentration in the range of 6 - 12% (6, 8, 10, 12% by mass composition). An empirical estimation is also given that each percent (%) by weight of kaolin will increase the melting temperature of ceramic glaze by 2°C. The research results are a premise for the application of HM to investigate thermal properties such as flocculation temperature, softening temperature, spherical temperature, hemisphere temperature, and melting temperature of glaze and bone ceramic.



Author's Affiliation
  • Do Quang Minh

    Google Scholar Pubmed

  • Huynh Ngoc Minh

    Google Scholar Pubmed

  • Nguyen Vu Uyen Nhi

    Google Scholar Pubmed

  • Kien Do Trung Kieu

    Email I'd for correspondance: kieudotrungkien@hcmut.edu.vn
    Google Scholar Pubmed

Article Details

 Copyright Info

Creative Commons License

Copyright: The Authors. This is an open access article distributed under the terms of the Creative Commons Attribution License CC-BY 4.0., which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 How to Cite
Minh, D. Q., Minh, H. N., Nhi, N. V. U., & Kieu, K. (2023). Influence of kaolin to temperature characteristics of ceramic glaze. VNUHCM Journal of Engineering and Technology, 5(SI1), 128-134. https://doi.org/https://doi.org/10.32508/stdjet.v5iSI1.979

 Cited by



Article level Metrics by Paperbuzz/Impactstory
Article level Metrics by Altmetrics

 Article Statistics
HTML = 192 times
PDF   = 44 times
Total   = 44 times