Abstract

Structural and magnetic features of high performance Ca3-xInxVO8 ceramic synthesized via mixed oxalates-citrates precursors

Author(s): Khaled M.Elsabawy, Q.Mohsen, Ragab R.Amin

Indium-doped vanadate ceramic samples with general formula Ca3-xInxVO8 were synthesized by using solution route technique depending upon two different precursors (oxalate and citrates) to get maximum homogeneity inside the bulk of the material where x = 0.05 and 0.25 mole. Structural and microstructural properties were monitoring by using both of XRD and SEM evaluating that indium doped-calcium vanadate ceramic has the semiconducting classical doubly perovskite phase as proved in the X-ray diffractogram, grain size of thematerial bulkwas found to be in between 1.57- 2.23mwhich are lower than those reported in literatures.Magneticmeasurements indicated that the In- doped- calcium vanadate ceramic exhibits an semiconducting behavior confirming that indium-hole dopings enhance the paramagnetic character and semi-conduction mechanism of the hexagonal perovskite phase.


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