Glass-Ceramics from Trachyte Rock- Limestone or Magnesite

Autor: Zeinab A. Abd El-Shakour, Nahla I. Abd El Ghaffar, Gehan T. El-Bassyouni, Esmat M. A. Hamzawy
Rok vydání: 2022
Předmět:
Zdroj: Silicon. 15:133-141
ISSN: 1876-9918
1876-990X
DOI: 10.1007/s12633-022-01990-3
Popis: Inexpensive sintered glass-ceramic glaze was prepared from a mixture of Egyptian trachyte with either limestone or magnesite. A represented trachyte rock was pulverized to powder (3 in case of the trachyte-limestone and 2.36 and 2.64 g/cm3 in case of the trachyte-magnesite. The coefficient of thermal expansion (CTE) and the hardness of the sintered glass-ceramic were in the range of 6.2-8.5 × 10−6 °C−1 and 440-563 GPa respectively. However, the CTE values decreased in case of trachyte-limestone whereas the hardness values were high in case of trachyte-magnesite. The present glass-ceramic samples had porcelain nature and could be used in cladding of wall and floor.
Databáze: OpenAIRE
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