Synthesis of Calcium Titanate Based on Natural Rutile from Madagascar
DOI:
https://doi.org/10.25159/3005-2602/21935Keywords:
rutile, calcium titanate, purification, solid-state reaction, characterisation, dielectric propertiesAbstract
This study describes a solid-state synthesis method for calcium titanate derived from the purification of natural rutile from Madagascar. Purification of this raw ore with concentrated hydrochloric acid eliminated undesirable secondary phases, such as hematite and montroseite, which were detected by various analytical techniques, including X-ray diffraction, infrared spectroscopy, and Raman spectroscopy. The synthesis of CaTiO₃ at 1 100 °C from the purified rutile and calcium carbonate led to the formation of an orthorhombic calcium titanate, which was characterised by these advanced analytical methods. Dielectric characterisation of the synthesised CaTiO₃ revealed stable permittivity and low dielectric losses over a wide frequency range.
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Copyright (c) 2026 Tokimandimby Rakotonjanahary , Nirina Rasolofoson, Ravo Tokiniaina Ranaivoson, Alain Gibaud
This work is licensed under a Creative Commons Attribution 4.0 International License.
Accepted 2026-06-08
Published 2026-08-03
