Phase equilibria in the Zn-Mn-O system

L. Nádherný (1) , O. Jankovský (1) , Z. Sofer (1) , J. Leitner (1) , Christine Martin (2) , D. Sedmidubský (1)

1 ICT - Institute of Chemical Technology [Prague]
2 CRISMAT - Laboratoire de cristallographie et sciences des matériaux

Different ratios of ZnO and MnCO3 were mixed and processed by ceramic route to investigate phase relations in the Zn-Mn-O system using differential thermal analysis and X-ray powder diffraction techniques. Except for Zn1-xMnxO we detected two different spinel phases in this system. FactSage program was used for the construction of the Zn-Mn-O phase diagram in air and oxygen atmosphere. To verify the composition in several parts of the diagram at the temperature of interest, a number of high-temperature annealings followed by quenching was performed. © 2014 Elsevier Ltd.

Mots clés: Phase diagram; Spinel; Thermodynamic properties; Zinc oxide; Zn-Mn-O

Domaines: Chimie; Cristallographie; Matériaux; Chimie théorique et/ou physique

L. Nádherný, O. Jankovský, Z. Sofer, J. Leitner, Christine Martin, et al.. Phase equilibria in the Zn-Mn-O system. Journal of the European Ceramic Society, 2015, 35 (2), pp.555-560. ⟨10.1016/j.jeurceramsoc.2014.09.008⟩. ⟨hal-02184136⟩