Untersuchung des mehrachsigen elektro-mechanischen Materialverhalten von ferroelektrischen Keramiken

• Antragsteller: Professor Dr.-Ing. Marc Kamlah
• Fachliche Zuordnung: Metallurgische, thermische und thermomechanische Behandlung von Werkstoffen
• Förderung: Förderung von 2002 bis 2010
• Projektkennung: Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 5397369

Multi-axial electromechanical constitutive behavior of ferroelectric ceramic solids will be investigated by the method of experiment. Tension-torsion and bi-axial tension tests will be performed on tubular and planar specimens, respectively. Effect of the multi-axial mechanical loading upon the electric behavior will be quantified, in terms of the stress-strain curves, the electric field-electric displacement curves and, most importantly, the electromechanical "yield surface". These multi-axial results, once available, are the basis for future development of phenomenological constitutive laws and for further study of the sensitivity of ferroelectric solids to flaws.

• DFG-Verfahren: Sachbeihilfen
• Internationaler Bezug: China
• Beteiligte Person: Professor Dr. Ya-Peng Shen