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Abstract
Study of d.c. ionic conductivity in pure BaCl2 and BaCl2 dispersed with the insulating material SiO2 is presented in this work.Variation of dc ionic conductivity with temperature has shown a gradual enhancement of conductivity with m/o of dispersoid reaching to a maximum of nearly two orders of magnitude at 6.6m/o. The fall of enhancement was observed with further increase in m/o of dispersoid. The enhancement of conductivity in this system is interpreted due to increased concentration of charge carriers in the space charge region formed at the interface between the host BaCl2 and insulating dispersoid particles SiO2. XRD and FTIR studies have ruled out the formation of new compound or solid solution, between the host and the dispersoid, as there are no new peaks observed in all these systems.
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Schedule a callMore From: IOP Conference Series: Materials Science and Engineering
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