Solid State Reactions: Preparation of Solid Solutions and Pure Alkaline-Earth Titanates to Study their Dependence on Vegard’s Law

• DOI: 10.1021/acs.jchemed.2c00923
• Publication Date: 2023-03-29T19:10:59Z
• Authors: Ana Sofía Varela; Alfonso García-Má...
• Keywords: Alkaline earth metal; Bravais lattice; Barium; Mole fraction; Lattice constant; Lattice (music); Powder Diffraction

This laboratory experiment consists of the synthesis two series alkaline-earth titanates (calcium–strontium and strontium–barium) to corroborate Vegard′s law by obtaining their X-ray diffraction patterns plotting lattice parameter versus mole fraction both cations. allows students understand key concepts in solid state chemistry a parameter, cubic Bravais network, perovskite type structure, substitutional solutions, its deviations, Miller indices, principles. In addition, it gives opportunity acquire technical skills ceramic pattern interpretation.