Description
This quick lab experiment is designed to introduce students to powder X-ray diffraction including sample preparation, data collection, and the analysis of diffraction data to refine lattice parameters. Diffraction data is collected for a sample of the cubic perovskite SrTiO3 (useful data can be obtained in relatively short times) and compared to data collected previously (over 6 hours) for the orthorhombic perovskite CaTiO3. Students index the diffraction pattern of SrTiO3 by comparison to the JCPDS database, and use a free program, UnitCell, to refine the l