Byrappa, K. and Paramesha, J. R. (1999) Crystal growth and characterisation of rare earth phosphates. In: Rare Earths `98.
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Growth of rare earth phosphates has been carried out from aqueous phosphoric acid solutions. The system K2O - La2O3 - P2O5 - H2O has been studied in detail within a temperature range 150 to 700 degrees C, and a series of hydrous and anhydrous phosphates have been obtained. The influence of several growth parameters like the ratio of the alkali metals to rare earth metals, the concentration of P2O5, H2O, the pH of the growth media, experimental temperature, etc. on the type and quality of the rare earth phosphate obtained has been studied. The growth mechanism of the formation of various hydrous and anhydrous phosphates in the system K2O - La2O3 - P2O5 - H2O has been studied, in order to obtain crystals with a desired morphology and quality, which helps in the in-situ fabrication of the crystals ready for use as solid state laser hosts. LaP5O14 and KLaP4O12 crystals were doped with Nd up to 20%.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Additional Information: | International Conference on Rare Earths, FREMANTLE, AUSTRALIA, OCT 25-30, 1998 |
| Subjects: | F Earth Science > Geology |
| Divisions: | Department of > Earth Science |
| Depositing User: | Vasantha uom |
| Date Deposited: | 23 Jan 2020 11:40 |
| Last Modified: | 23 Jan 2020 11:40 |
| URI: | http://eprints.uni-mysore.ac.in/id/eprint/11175 |
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