Synthesis, processing and characterization of nanocrystalline titanium dioxide
Abbreviated Journal Title
Mater. Sci. Eng. A-Struct. Mater. Prop. Microstruct. Process.
titanium dioxide; sol-gel; nanopowder; synthesis; mechanical properties; MECHANICAL-PROPERTIES; PHASE-STABILITY; GAS SENSORS; TIO2 FILMS; THIN-FILMS; TRANSFORMATION; TEMPERATURE; DEPOSITION; COATINGS; POWDER; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering
Nanocrystalline titanium dioxide (TiO2) powder was synthesized by using a simple sol-gel technique, which can be easily controlled and reproduced. By hydrolyzing titanium tetraisopropoxide in a mixture of isopropanol and deionized water, TiO2 nanopowder was obtained after calcination at 400 degrees C. The powder was analyzed for its phases using X-ray diffraction technique and found to be pure anatase. Crystallite size, powder morphology and lattice fringes were determined using high-resolution TEM. DSC and TGA were used to study the thermal properties. As-synthesized powder was uniaxially compacted and sintered at 1300-1600 degrees C to investigate densification behavior and mechanical properties. Maximum hardness (472 +/- 30 HV) and the best sintered density (3.75 g/cm(3)) were attained in structures sintered at 1600 degrees C, whereas, the highest compressive strength (364 +/- 11MPa) was achieved in structures sintered at 1500 degrees C. (c) 2006 Elsevier B.V. All rights reserved.
Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
"Synthesis, processing and characterization of nanocrystalline titanium dioxide" (2006). Faculty Bibliography 2000s. 7896.