Thermal behavior of various solid feldspars are different, namely those of bivalent cations show no change in the distribution of Al and Si atoms, whereas feldspars of univalent cations become more disordered with raising temperature. In the latter case Al atoms migrate from the sites they occupe at low temperatures and interchange positions with the Si atoms. At high temperatures (but stil...

thermal behavior of various solid feldspars are different, namely those of bivalent cations show no change in the distribution of al and si atoms, whereas feldspars of univalent cations become more disordered with raising temperature. in the latter case al atoms migrate from the sites they occupe at low temperatures and interchange positions with the si atoms. at high temperatures (but still be...

Abstract Tin (Sn 2+ ) and strontium (Sr ), two potential alternatives to lead (Pb in perovskite formation, were explored transforming calcium carbonate (CaCO 3 into a leaving group cation exchange reaction. This is the first part of sequential ion process calcite Pb-free material for solar cell applications. Calcite, polymorph CaCO , was successfully transformed strontianite (SrCO through In Sn...