LI, Ming, FETEIRA, Antonio, MIRSANEH, Mehdi, LANAGAN, Michael T. and SINCLAIR, Derek C. (2010). A link between p-type electrical conduction and microwave dielectric loss in highly ordered Ba(Co1/3Nb2/3)O3 ceramics. Journal of Materials Research, 25 (06), 1011-1014.Full text not available from this repository.
BaCo1/3Nb2/3O3 ceramics, with a high density and a similar, high degree of 1:2 B-site cation ordering, exhibit very different quality factors, Q. The ceramics exhibit p-type behavior with higher conductivity and lower Q for samples processed in O2 as compared with those processed in air. It is proposed that unavoidable Co loss during high-temperature ceramic processing leads to p-type doping that must be compensated by oxygen vacancies to impede hole formation. The composition exhibiting only intrinsic conduction and optimized Q is not achieved with processing in atmospheric oxygen due to filling of oxygen vacancies and hole formation during cooling.
|Research Institute, Centre or Group:||Materials and Engineering Research Institute > Structural Materials and Integrity Research Centre > Centre for Corrosion Technology|
|Depositing User:||Hilary Ridgway|
|Date Deposited:||06 Jun 2012 11:36|
|Last Modified:||06 Jun 2012 11:36|
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