Preparation and properties of glass-ceramics from wastes (Kira) of silica sand and kaolin clay refining

Tomohiro Toya, Yoshikazu Kameshima, Atsuo Yasumori, Kiyoshi Okada

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

Glass-ceramics were prepared from wastes generated from refining of silica sand and kaolin clay, called Kira. Several kinds of Kira were melted at 1300-1550 °C with additions of CaCO3 and quenched in air or water to obtain glasses. The quenched glasses were ground to -6/°C (30-380 °C). The four-point bending strengths of the as-fired glass-ceramics ranged from 76 to 86 MPa. Vickers microhardness was found to be 6.6-7.5 GPa. Since the chemical durability for acid and alkali was excellent in these glass-ceramics, they are considered to be candidates for applications such as building materials, ceramic tiles, etc.

Original languageEnglish
Pages (from-to)2367-2372
Number of pages6
JournalJournal of the European Ceramic Society
Volume24
Issue number8
DOIs
Publication statusPublished - Jul 2004
Externally publishedYes

Fingerprint

Kaolin
Silica sand
Glass ceramics
Refining
Clay
Glass
Alkalies
Tile
Bending strength
Microhardness
Durability
Acids
Water
Air
clay

Keywords

  • Glass-ceramics
  • Kaolin clay waste
  • Mechanical properties
  • Silica sand waste
  • Waste materials

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Preparation and properties of glass-ceramics from wastes (Kira) of silica sand and kaolin clay refining. / Toya, Tomohiro; Kameshima, Yoshikazu; Yasumori, Atsuo; Okada, Kiyoshi.

In: Journal of the European Ceramic Society, Vol. 24, No. 8, 07.2004, p. 2367-2372.

Research output: Contribution to journalArticle

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