Effect of ZnO Addition on the Sintering Behavior of Al2O3

Negi, A (2010) Effect of ZnO Addition on the Sintering Behavior of Al2O3. BTech thesis.



Densification of alumina has been studied in the present work in presence of Zinc oxide. Zinc oxide as dopant has been added to the extent of 0.5, 1 and 2 weight % to pure alumina and studied for pressure-less sintering. Pellets of without and with ZnO containing compositions were sintered at 15500C 16000C, 16500C and then characterized for densification, phase analysis. A new phase, ZnAl2O4, has been observed in the sintered samples indicating reactions between alumina and dopant phase. Results reveal that Zinc oxide is a beneficial sintering additive for alumina on sintering at 16500C, at lower temperatures it has a hindering effect on sintering.

Item Type:Thesis (BTech)
Uncontrolled Keywords:sintering behavior, Al2O3
Subjects:Engineering and Technology > Ceramic Engnieering > Ceramic Materials
Divisions: Engineering and Technology > Department of Ceramic Engineering
ID Code:1706
Deposited By:Apoorv Negi
Deposited On:13 May 2010 15:01
Last Modified:18 May 2010 12:04
Supervisor(s):Sarkar, R

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