Nagarajan, V. S. ; Rao, K. J. (1989) Crystallization studies of ZrO2-SiO2 composite gels Journal of Materials Science, 24 (6). pp. 2140-2146. ISSN 0022-2461
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Official URL: http://www.springerlink.com/index/q70x624q0833v564...
Related URL: http://dx.doi.org/10.1007/BF02385434
Abstract
Composite ZrO2-SiO2 powders were prepared using a gel route. Morphological and crystallographic features of ZrO2 particles formed during the heat treatment, and the particle sizes of the composites have been investigated. The following polymorphic changes have been observed during the heat treatment: amorphous → metastable-cubic/tetragonal ZrO2 → tetragonal ZrO2 → monoclinic ZrO2. SiO2 crystallizes above 1273K. The martensitic transformation of ZrO2 (t → m) was observedin situ, when exposed to a high-energy electron beam. These results are important in the production of ZrO2-toughened ceramics of controlled microstructure.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Springer. |
| ID Code: | 91186 |
| Deposited On: | 17 May 2012 04:15 |
| Last Modified: | 17 May 2012 04:15 |
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