A Dynamic High Temperature XRPD Study of the Calcination of Zirconium Hydroxide
- 1 September 1988
- journal article
- research article
- Published by Cambridge University Press (CUP) in Powder Diffraction
- Vol. 3 (4) , 234-239
- https://doi.org/10.1017/s0885715600013531
Abstract
Structural and chemical changes in materials can be dynamically observed by using time resolved X-ray Powder Diffraction (XRPD) to collect patterns as these events happen. During calcination of amorphous zirconium hydroxide, Zr(OH)4, and its crystallisation to a metastable tetragonal form of zirconia, ZrO2, patterns have been collected at 10°C temperature intervals during a heating sequence to 500°C. These patterns show both the onset of ordering within the amorphous starting material and the progress of its conversion into crystalline zirconia. Events are recorded within the pattern in the form of peak growth and reduction in amorphous component of the pattern with increasing temperature.Keywords
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