Artificial synthesis of platelet-like kassite and its transformation to CaTiO3

Yi Jen Huang, Min Chiao Tsai, Hsin-Tien Chiu, Hwo Shuenn Sheu, Chi Young Lee*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

Platelet-like kassite, a rare mineral CaTi2O4(OH) 2, was synthesized by a wet chemical route using Ca(OH)2 and TiO2 as reagents in base solution. The microstructure of the obtained kassite examined by synchrotron radiation and Rietveld refinement are hexagonal (P312) with a = b = 0.52451(2) and c = 0.47844(3) nm. This cell is slightly different from JCPDS No. 88-1722. At heating above 500 °C, the layered crystalline kassite rearranges to form, disk-like CaTiO3 and amorphous TiO2 by removing H2O completely. Furthermore, transmission electron microscopy analysis reveals that the vertical axis of disk-like CaTiO3 along the [021] direction converts from that of [001] of kassite.

Original languageEnglish
Pages (from-to)1307-1311
Number of pages5
JournalCrystal Growth and Design
Volume10
Issue number3
DOIs
StatePublished - 3 Mar 2010

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