ZrO2-SiO2 materials prepared by sol-gel
作者： I.M. Miranda Salvado , C.J. Serna , J.M. Fernandez Navarro
DOI: 10.1016/0022-3093(88)90042-7
关键词: Thermal treatment 、 Silica matrix 、 Crystallography 、 Chemical engineering 、 Diffraction 、 Cubic zirconia 、 Zirconium 、 Monoclinic crystal system 、 Materials science 、 Infrared spectroscopy 、 Sol-gel
摘要: Abstract Gels with composition xZrO2−(100−x)SiO2, x = 10−55, were prepared in different conditions using zirconium acetylacetonate and TEOS as precursors. treated at temperatures up to 1100°C characterized by X-ray diffraction, IR spectroscopy TEM. Preparation determined the subsequent development of crystalline phases following thermal treatment. Monoclinic zirconia segregation dispersed a silica matrix occurred when gels strong hydrocloric acid medium. lower content favours instead formation very small crystals tetragonal zirconia.
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