Rao, R Ramachandra and Roopa, HN and Kannan, TS (1999) The Characterisation of Aqueous Silicon Slips. Journal of the European Ceramic Society, 19 . pp. 2763-2771.
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Abstract
The optimum conditions of aqueous silicon slips for slip13; casting was achieved by employing various experimental13; techniques like zeta potential, /fl size13; distribution, sedimentation, viscosity and rheological13; measurements as a function of pH of the slips in the pH range of 2-11. Silicon suspensions display a maximum in zeta potential values and a minimum in sedimentation height and viscosity in two pH regions of 4-5 and 8. The slips behaved as near-newtonian at these pH values up to a solid loading of 52 wt% and as non-newtonian with thixotropic behaviour above this solid loading. Samples with highest green density (68%) were produced from 72 wt% solid loaded slips which were conditioned at a pH of 8 and milled for 26 h. The cast bodies of these slips were nitrided to obtain reaction bonded silicon nitride products which were also characterised.13;
| Item Type: | Journal Article |
|---|---|
| Additional Information: | Copyright belongs to Elsevier Science Ltd. |
| Uncontrolled Keywords: | Rheology;Slip casting;Suspension;Si 3N4;Silicon. |
| Subjects: | CHEMISTRY AND MATERIALS > Chemistry and Materials (General) |
| Division/Department: | Materials Science Division, Materials Science Division, Materials Science Division |
| Depositing User: | Mr. N A |
| Date Deposited: | 08 Jun 2006 |
| Last Modified: | 03 May 2012 16:15 |
| URI: | http://nal-ir.nal.res.in/id/eprint/1503 |
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