Now showing items 1-3 of 3
| Abstract: | The thermal diffusivity of y-alumina is determined by the photoacoustic method. The method is calibrated by determining the thermal diffusivity of copper and aluminum. The effect of the chemisorbed hydroxyl groups or thermal diffusivity is studied by degassing the sample at different temperatures. |
| URI: | http://dyuthi.cusat.ac.in/purl/2276 |
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| Dyuthi-SS37.pdf | (239.8Kb) |
| Abstract: | Thermal diffusivity (TD) measurements were performed on some industrially important dyes – auramine O (AO), malachite green and methylene blue (MB) – adsorbed K-10 montmorillonites using photoacoustic method. The TD value for the dye-adsorbed clay mineral was observed to change with a variation in dye concentration. The contribution of the dye towards TD was also determined. The repeatedly adsorbed samples with MB and AO exhibited a lower TD than the single-adsorbed samples. TD values of sintered MB samples were also obtained experimentally. These sintered samples exhibit a higher TD, although they show a trend similar to that of non-sintered pellets. A variation in dye concentration and sintering temperature can be used for tuning the TD value of the clay mineral to the desired level |
| Description: | Philosophical Magazine Vol. 89, No. 10, 1 April 2009, 895–905 |
| URI: | http://dyuthi.cusat.ac.in/purl/3998 |
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| Thermal charact ... d K-10 montmorillonite.pdf | (388.6Kb) |
| Abstract: | Thermal diffusivity (TD) measurement on commercial K-10 and KSF montmorillonites was carried out by photoacoustic technique. The TD of the montmorillonites after methylene blue adsorption changed with the dye concentration. The repeatedly adsorbed samples showed a lesser TD than the single adsorbed samples. After methylene blue adsorption the acid leached K-10 samples showed well defined changes in TD when compared to the ordered KSF samples |
| Description: | Applied Clay Science 42 (2009) 483–487 http://dx.doi.org/10.1016/j.clay.2008.06.006 |
| URI: | http://dyuthi.cusat.ac.in/purl/3999 |
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| Thermal charact ... ed montmorillonites by.pdf | (325.8Kb) |
Now showing items 1-3 of 3
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