Titanium Oxides

Titanium Oxides

 

the compounds of titanium and oxygen TiO, Ti2O3, and TiO2. In addition, a series of intermediate oxides are known to exist within the range of compositions TiO2-Ti2O3. The titanium oxide most widely distributed and of greatest commercial importance is titanium dioxide, TiO2, which occurs naturally as the minerals rutile, anatase, and brookite. In pure form, TiO2 is a white powder with a melting point of 1830°–1850°C. Technical-grade TiOz is obtained from rutile and from complex titaniferous iron ores of the ilmenite type by the sulfuric-acid method, by the oxidation of TiCl4 in a plasma jet of oxygen at 1500°–2000°K, or by the combustion of TiCl4 in oxygen.

Titanium oxide ores serve as raw materials in the production of metallic titanium. TiO2 is widely used in the manufacture of high-quality white paints (titanium white). It also serves as a pigment and filler in the rubber industry, in metallurgy, and in the production of plastics, synthetic fibers, paper, and leather.

S. G. GLAZUNOV

References in periodicals archive ?
Titanium oxides have good ionic and insulating properties that increase adhesion with the metallic substrate and reduce adverse reactions into the human body (Leyens & Peters, 2003; Roessler et al.
Effect of anodic oxidation parameters on the titanium oxides formation.
Diamanti, MV, Pedeferri, MP, "Effect of Anodic Oxidation Parameters on the Titanium Oxides Formation.
In this study surface contact angle values have been collected and analyzed to estimate how hydro-repellence, oleo-repellence, and apparent surface energy of the coated titanium oxide samples influence the wettability and the adhesion of dirt on the substrate.
It is comprised of hydrogen peroxide and at least 20% by volume of inert particles chosen from particles of titanium oxides, zinc oxides, carbonates, silicates, sulfides, polyamides, polyesters, polystyrenes, polyurethanes, polycyanoacrylates, polyethylenes, polymethyl methacrylates, polypropylenes, polycarbonates, Teflon, silicone elastomers, waxes and complex synthetic compounds.
Presentations will be included on many different types of fillers, from flash calcined clays, diatomaceous earths and perlites, aluminas, natural fibers, titanium oxides, mica, wollastonite, pigments and glass foam to nanographite, POSS and nanocomposites.
Degussa AG, Dusseldorf, Germany will combine its aluminum and titanium oxides under the product name Aeroxide.
Imports of titanium oxides and pigments increased an estimated 15% in 1999 compared with those of 1998.
The interstratified distribution of titanium oxides can act as a solid lubricant during the wear test.
The characteristics of HVOF spraying and the titanium oxides formed in situ may be responsible for this phenomenon.