Nb doped barium titanate (BT) experiences unique phenomena over a range of dopant concentrations. One important phenomenon is the resistivity behavior as a function of donor concentration. The role of the grains and the grain boundaries in this system is not fully established yet. There are diverse opinions on this subject, since this system is usually only in partial equilibrium and hence very complex. We examine the system using Impedance Spectroscopy (IS). Two new analysis methods for IS based on evolutionary programming techniques, which are inspired by biological evolution, have been developed in our lab. Those evolutionary programming techniques are called Genetic Programming (GP) and Genetic Algorithm (GA). This is an approach to solve (or in the case of GA suggest solution for) such ill-posed inverse problems. By implementation and improvement of the use of those techniques for analyzing IS results, we believe that the role of the grains and the grain boundaries can be separated and the physical processes occur can be analyzed.
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ASME 2008 9th Biennial Conference on Engineering Systems Design and Analysis
July 7–9, 2008
Haifa, Israel
Conference Sponsors:
- International
Volume 1: Advanced Energy Systems; Advanced and Digital Manufacturing; Advanced Materials; Aerospace
ISBN:
978-0-7918-4835-7
PROCEEDINGS PAPER
Nb-Doped Barium Titanate: Concentration-Properties Relations
Shany Hershkovitz,
Shany Hershkovitz
Technion-Israel Institute of Technology, Haifa, Israel
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Sioma Baltianski,
Sioma Baltianski
Technion-Israel Institute of Technology, Haifa, Israel
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Yoed Tsur
Yoed Tsur
Technion-Israel Institute of Technology, Haifa, Israel
Search for other works by this author on:
Shany Hershkovitz
Technion-Israel Institute of Technology, Haifa, Israel
Sioma Baltianski
Technion-Israel Institute of Technology, Haifa, Israel
Yoed Tsur
Technion-Israel Institute of Technology, Haifa, Israel
Paper No:
ESDA2008-59049, pp. 499-504; 6 pages
Published Online:
July 6, 2009
Citation
Hershkovitz, S, Baltianski, S, & Tsur, Y. "Nb-Doped Barium Titanate: Concentration-Properties Relations." Proceedings of the ASME 2008 9th Biennial Conference on Engineering Systems Design and Analysis. Volume 1: Advanced Energy Systems; Advanced and Digital Manufacturing; Advanced Materials; Aerospace. Haifa, Israel. July 7–9, 2008. pp. 499-504. ASME. https://doi.org/10.1115/ESDA2008-59049
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