Synthesis and stability of single-phase chalcopyrite – a potential reference material for key investigations in chemistry and metallurgical engineering
Ninett Frenzel, Marcel Mehne, Sebastian Bette, Sven Kureti, Gero Frisch
Abstract
). Single-phase chalcopyrite was only found in samples containing around 49.7 at% sulfur in the reactant mixture. Mößbauer spectroscopy confirmed that chalcopyrite contains trivalent iron. Temperature dependent XRPD measurements detected an order-disorder phase transition starting at 485 °C. At temperatures above 535 °C, samples only contained intermediate solid solutions. These adopt the sphalerite structure with the lattice constant slightly varying with Cu : Fe ratio.
Topics & Concepts
ChalcopyriteBornitePowder diffractionMössbauer spectroscopyCopperPyriteSulfurSphaleriteChemistryPhase (matter)Lattice constantAnalytical Chemistry (journal)Materials scienceMetallurgyInorganic chemistryCrystallographyDiffractionMineralogyChromatographyOpticsPhysicsOrganic chemistryMetal Extraction and BioleachingMinerals Flotation and Separation TechniquesExtraction and Separation Processes