Thermal stability and decomposition kinetics of Li2Al4CO3(OH)12·3H2O
| Autor: | C. A. Drewien, Michael O. Eatough, David R. Tallant |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
Materials science
Hydrotalcite Mechanical Engineering Metallurgy chemistry.chemical_element chemistry.chemical_compound chemistry Chemical engineering Mechanics of Materials Aluminium Aluminium carbonate visual_art Carbon dioxide Aluminium alloy visual_art.visual_art_medium Hydroxide General Materials Science Thermal stability Hydrate |
| Zdroj: | Journal of Materials Science. 31:4321-4325 |
| ISSN: | 1573-4803 0022-2461 |
| DOI: | 10.1007/bf00356456 |
| Popis: | The thermal stability of lithium containing hydrotalcite, a material that has potential application for providing atmospheric corrosion protection to aluminium alloys, was investigated. Lithium aluminium carbonate hydroxide hydrate (Li2Al4CO3(OH)12·3H2O) coatings were prepared by immersion of an 1100 aluminium alloy into a lithium carbonate-lithium hydroxide solution, and the bulk material was prepared by precipitation in the same solution. Thermal stability of the coatings and the bulk material existed to around 150 °C. Above this temperature, interlayer water was expelled, followed by loss of structural water and carbon dioxide. The kinetic parameters for interlayer water loss have been determined, and water loss can be described by a Johnson-Mehl-Avrami rate equation. |
| Databáze: | OpenAIRE |
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