TiO2 (titanium(IV) oxide) is an inorganic compound of titanium that is widely used in the industry and in aerospace applications. It is a semiconductor with a high dielectric constant and conductivity. Titanium dioxide alloys exhibit a high degree of corrosion resistance and tensile strength. In the space program, it is used as a light-weight material. The material has excellent photocatalytic properties and disinfecting properties.
The TiO2 molecule has octahedral geometry and six oxygen atoms. It is produced by the reaction of oxygen with titanium. For example, it is found in rutile, a common residual mineral, and ilmenite. These minerals are generally processed to produce titanium dioxide. However, ilmenite is more difficult to process due to its high iron content.
The melting point of titanium dioxide is 1840degC. This is a complicated calculation since the boiling temperature is also very high. To get a correct melting temperature, JANAF thermochemical tables are used. Using the Gibbs free energy, the pure component enthalpy of melting is calculated.
Ion irradiation is believed to cause stress in the lattice. It can lead to a local melting and a deformation of the crystalline structure. This can be observed in the XRD peak. A shi can also be seen in the Raman peaks. Moreover, overlapping ion tracks are detected at the highest uences.
When molten TiO2 nanorods are rapidly quenched, the resulting morphology is interconnected and semi-transparent. The material connects with the adjacent nanorods in a ring-type SAED pattern.