CaZrTi2O7 zirconolite synthesis: From ceramic to glass‐ceramic. Issue 4 (1st March 2019)

• Record Type: Journal Article
• Authors: Kong, Linggen; Karatchevtseva, Inna; Chironi, Ilkay; Wei, Tao; Zhang, Yingjie
• Is Part Of: International journal of applied ceramic technology. Volume 16:Issue 4(2019)
• Page Start: 1460
• Page End: 1470
• Publication Date: 2019-03-01
• Subjects: CaZrTi2O7 -- combustion synthesis -- glass‐ceramic -- zirconolite; Ceramics -- Periodicals; Ceramics -- Technological innovations -- Periodicals; 620.1405
• DOI: 10.1111/ijac.13203
• Languages: English
• ISSNs: 1546-542X

Abstract

Abstract: The formation of CaZrTi2 O7 zirconolite and its crystallization in sodium alumino‐borosilicate glass has been investigated via sintering in air. The ceramic precursor is prepared using a soft chemistry route to ensure ultimate mixing of the reactants at the molecular level. A nearly phase pure CaZrTi2 O7 zirconolite is formed after sintering the ceramic precursor at 1400°C for 12 hours. In order to form zirconolite glass‐ceramics, various processing conditions are investigated including sintering temperatures, different glass composition precursors, and ceramic to glass weight ratios. Zirconolite crystallization on the surface and inside of glass‐ceramic‐pelletized samples is investigated. Higher ceramic to glass weight ratio leads to the formation of zirconolite as crystalline phase, which is quite dominant in glass. Abstract : The processing conditions are investigated for the formation of the CaZrTi2 O7 zirconolite in glass. Zirconolite is the dominant ceramic phase formed in glass at high ceramic to glass weight ratios.