Synthesis, characterization, and properties of nanophase TiO2
- 1 December 1988
- journal article
- Published by Springer Nature in Journal of Materials Research
- Vol. 3 (6) , 1367-1372
- https://doi.org/10.1557/jmr.1988.1367
Abstract
Ultrafine-grained, nanophase samples of TiO2 (rutile) were synthesized by the gas-condensation method and subsequent in situ compaction. The samples were studied by a number of techniques, including transmission electron microscopy, Vickers microharness measurements, and positron annihilation spectroscopy, as a function of sintering temperature. The nanophase compacts with average initial grain sizes of 12 nm were found to densify rapidly above 500 °C, with only a small increase in grain size. The hardness values obtained by this method are comparable to or greater than those for coarser-grained compacts, but are achieved at temperatures 400 to 600 °C lower than conventional sintering temperatures and without the need for sintering aids.Keywords
This publication has 9 references indexed in Scilit:
- Fractographic study of sintered nanophase TiO2Materials Letters, 1988
- X-ray diffraction studies of the structure of nanometer-sized crystalline materialsPhysical Review B, 1987
- Diffusion and point defects in TiO2−xJournal of Physics and Chemistry of Solids, 1985
- Synthesis and Characterization of Monosized Doped TiO2PowdersJournal of the American Ceramic Society, 1984
- Formation, Packing, and Sintering of Monodisperse TiO2 PowdersJournal of the American Ceramic Society, 1982
- Basic research needs on high temperature ceramics for energy applicationsMaterials Science and Engineering, 1980
- On the formation and interaction of small metal particlesActa Metallurgica, 1979
- Ultrafine metal particlesJournal of Applied Physics, 1976
- An Electron Microscope Study on Fine Metal Particles Prepared by Evaporation in Argon Gas at Low PressureJapanese Journal of Applied Physics, 1963