Publication detail

Anorthite Ceramics: Grog and Clay Selection for Lowering the Sintering Temperature

SOKOLÁŘ, R. NGUYEN, M.

Original Title

Anorthite Ceramics: Grog and Clay Selection for Lowering the Sintering Temperature

Type

journal article in Web of Science

Language

English

Original Abstract

A research investigation was conducted on two variables that are indicative of a plastic raw materials based on kaolin vs. interstratified illite-smectite clay and a non-plastic admixture including grog (quartz vs. alumina) during the sintering process of an anorthite porcelain body beginning at 950 °C, up to the sintering temperature. A correlation was found between the mineralogical composition and various parameters of the fired bodies. A purely anorthic sintered body can be produced using interstratified illite-smectite clay with quartz as a grog, which has the lowest coefficient of linear thermal expansion in the temperature range of 30 to 700 °C and highest bending strength - modulus of rupture of sintered body. When alumina is present in the raw material mixture, the coefficient of linear thermal expansion is lower due to the absence of the SiO2 phases. Quartz in combination with interstratified illite-smectite clay significantly reduces the sintering temperature through the formation of an amorphous melt up to the sintering temperature.

Keywords

anorthite ceramics; mineralogical composition; sintering temperature; coefficient of linear thermal expansion; bending strength

Authors

SOKOLÁŘ, R.; NGUYEN, M.

Released

21. 2. 2024

Publisher

Taylor & Francis Group

Location

United Kingdom

ISBN

2187-0764

Periodical

Journal of Asian Ceramic Societies

Year of study

12

Number

2

State

Japan

Pages from

129

Pages to

140

Pages count

12

URL

https://www.tandfonline.com/doi/full/10.1080/21870764.2024.2320448

Full text in the Digital Library

http://hdl.handle.net/11012/249161

BibTex

@article{BUT187969,
  author="Radomír {Sokolář} and Martin {Nguyen}",
  title="Anorthite Ceramics: Grog and Clay Selection for Lowering the Sintering Temperature",
  journal="Journal of Asian Ceramic Societies",
  year="2024",
  volume="12",
  number="2",
  pages="129--140",
  doi="10.1080/21870764.2024.2320448",
  issn="2187-0764",
  url="https://www.tandfonline.com/doi/full/10.1080/21870764.2024.2320448"
}