Influence of Calcia Addition and Calcination Temperatures on Sintering and Stabilization of Zirconia
- 1 January 1983
- journal article
- research article
- Published by Taylor & Francis in Transactions of the Indian Ceramic Society
- Vol. 42 (1) , 5-9
- https://doi.org/10.1080/0371750x.1983.10822608
Abstract
The influence of amount of calcia addition and calcination temperature on the sintering characteristics of zirconia was studied. The extent of stabilization was studied by X-ray diffraction. It was noticed that the optimum amount of calcia addition to obtain high density without cracking was 0.50 to 0.75 wt%. Higher amount of calcia addition and higher calcination temperature resulted in lowered density. Stabilization of zirconia with calcia addition, i.e. the formation of cubic phase, is found to be a function of amount of calcia added. The cubic solid solution formation took place mainly between 1000° and 1200°c. With the addition of 5.0 wt% of CaO, about 85% of cubic phase is formed at 1200°C and 100% at 1700°C.Keywords
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