Thermal desorption in nanocrystalline TiO2
- 15 July 1996
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 80 (2), 1186-1189
- https://doi.org/10.1063/1.363727
Abstract
Nanocrystalline TiO2 powder with a grain size of 9.8 nm was prepared by the hydrothermal precipitation method. Thermal desorption in the powder and compacted TiO2 samples has been studied by differential scanning calorimetry and thermogravimetric analysis. An endothermic peak was observed on these samples and the peak can be attributed to thermal desorption. The desorption enthalpy per gram of adsorbates in the compacted sample is larger than that in the powder one and it continues to increase with the compacting pressure. A tentative model has been proposed to explain the increase in desorption enthalpy due to compaction.Keywords
This publication has 7 references indexed in Scilit:
- Thermal stability of nanostructured materials Ti, TixN, Mo and Mo2NMaterials Science and Engineering: A, 1995
- Measurements of Excess Enthalpy in Ultrafine‐Grained Titanium DioxideJournal of the American Ceramic Society, 1995
- Reaction mechanism for the formation of intermetallic compounds from layered Sm/Fe powder obtained by mechanical millingJournal of Materials Science, 1994
- Thermodynamics of nanocrystalline platinumActa Metallurgica et Materialia, 1993
- Mechanical alloying of high melting point intermetallicsMaterials Science and Engineering: A, 1991
- Synthesis and properties of ultrafine AlN powder by rf plasmaApplied Physics Letters, 1989
- Ceramics ductile at low temperatureNature, 1987