Effects of low-melting temperature salt (Na₂SO₄) addition on the phase transformation, crystal growth, and chroma of titanium dioxide pigments
Y Wang, KA Mumford, S Shen, Y Li
Powder Technology | Elsevier | Published : 2015
The effects of the presence of a low-melting temperature inorganic salt (sodium sulfate) on the phase transformation, particle morphology and chroma of titanium dioxide white pigment were investigated. Powders were characterized by X-ray powder diffraction, scanning electronic microscopy, ultraviolet-visible-near infrared spectroscopy, infrared spectra and chroma measurements. For titanium dioxide pigments containing a lower salt content, the anatase-rutile phase transformation and crystal growth of titanium dioxide were inhibited. On the other hand, the anatase-rutile phase transformation and crystal growth of titanium dioxide was accelerated by the addition of higher salt concentrations. T..View full abstract
Awarded by Natural Science Foundation of Hebei Province
Awarded by National Natural Science Foundation of China
This work was supported by the Natural Science Foundation of Hebei Province (B2013208155) and National Natural Science Foundation of China (No. 60578041).