Das, Anubhav (2011) On the Synthesis of new four-layered Aurivillius compound Bi2MNa2Nb4O15 (M= Ca, Sr, Ba). BTech thesis.
The aim of the project was to synthesize Bi2MNa2Nb4O15 (M= Ca, Sr, Ba) by the Oxalate route. The detailed analysis of the DSC-TG plot depicted that the working range of calcination must be within 1000°C. However due to presence of competing secondary phases like BiNbO4, the synthesis of pure phase material was not possible. The detailed analysis that favored this fact was supported by powder X-ray diffraction (XRD). The precursor powder obtained was calcined at 800°C, 900°C, 1000°C, 1050°C and 1100°C, respectively. And the XRD analysis showed that as long as there was BiNbO4 in the system there were very negligible chances of preparation of the desired phase.
|Item Type:||Thesis (BTech)|
|Uncontrolled Keywords:||Aurivillius, oxalate, xrd, dsc-tg.|
|Subjects:||Engineering and Technology > Ceramic Engnieering > Ceramic Materials|
|Divisions:||Engineering and Technology > Department of Ceramic Engineering|
|Deposited By:||Mr Anubhav Das|
|Deposited On:||18 May 2011 10:21|
|Last Modified:||18 May 2011 10:21|
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