Phase transformations in the TiO2-NiO system

摘要: The anatase-rutile phase transition in fine-particle TiO2-NiO oxides has been studied using physicochemical characterization techniques (X-ray diffraction, differential thermal analysis, and mass spectrometry). results demonstrate that NiO additions considerably increase the rate of anataserutile polymorphic transformation. Nickel titanate formation depends on procedures used to prepare both titanium dioxide nickel oxide. In temperature range 700–850°C, anatase rutile prevents formation.