Hydrogen uranyl arsenate hydrate single crystals: H2(UO2)2(AsO4)2·8H2O; gel growth and characterization

摘要: Single crystals of hydrogen uranyl arsenate hydrate (HUAsH) were grown in tetramethoxysilane gels at different temperatures, below and above the paraelastic-ferroelastic transition temperature, T0. The characterized by X-ray diffraction, chemical etching, scanning electron microscopy optical microscopy. habit gel allowed three-dimensional features domain structure to be studied for first time. A correlation was made between crystal perfection, growth history.