Synthesis of ZrSiO4 powders by a sol-gel method with varied calcination temperatures

G. Elsandika, A. D.C. Putri, M. Musyarofah, S. Pratapa*

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)

Abstract

The effect of calcination temperature on phase formation of the powders prepared with starting materials ZrCL4 and TEOS (tetraethylorthosilicate) was studied. Stoichiometric Zr/Si (1:1 mol%) mixture of samples were prepared by a sol-gel method after 5 wt.% of PVA (polyvinyl alcohol) addition as a catalyst and mechanical activation via ball milling for 5 h. The mixtures were then calcined at 900, 1000, 1100, 1200, and 1300 °C for 10 h. The phase composition was determined by Rietveld analysis of X-ray diffraction (XRD) data using Rietica software. Results showed that at calcination temperatures of 900, 1000, and 1100 °C, only tetragonal zirconia was observed, but retained silica in an amorphous state. Both phases then completely reacted to form zircon at 1200 °C. At 1300 °C, a little amount of zircon decomposed into tetragonal zirconia and cristobalite.

Original languageEnglish
Article number012047
JournalIOP Conference Series: Materials Science and Engineering
Volume496
Issue number1
DOIs
Publication statusPublished - 22 Feb 2019
Event2nd International Conference on Current Progress in Functional Materials 2017, ISCPFM 2017 - Bali, Indonesia
Duration: 8 Nov 20179 Nov 2017

Keywords

  • TEOS
  • ZrCl
  • ZrSiO4 (zircon) powder
  • decomposition
  • sol-gel method

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