Synthesis and Novel Application of Nanomaterials in Tungstate, Titania and Silicon Nitride Systems

摘要: This paper summarizes some recent advances made in synthesis and application of nanomaterials tungstate, titania silicon nitride systems. Firstly, the room temperature acidic precipitation ageing process tungsten oxide dihydrate grains are presented. Fourier transform infrared spectroscopy studies have shown that structural stability Freedman type can be altered by presence Li+ NH+ 4 ions. Water molecules OH− groups present structure play an important role ion insertion during ageing. As regards system a mechanochemical coating is highlighted. Afterwards, study about ceramics with well known properties as low density, high strength toughness alternative way to improve mechanical thermal matrix, we performed preparation examination nano-crystalline carbon added ceramic matrix composites.