Evaluation of the degradation and failure mechanisms of piezoelectric ceramic elements/actuators.
S11216
★Prevent fatigue and damage by understanding the mechanism! ★Detailed explanation of evaluation and testing techniques to enhance reliability!
Speaker Dr. Kunihiro Nagata, Representative of PiezoCeram Technology Target Audience: Individuals responsible for piezoelectric materials and device-related technologies Venue: International Exchange Center, Room 4 [Kawasaki, Kanagawa] 10-minute walk from Motosumiyoshi Station on the Tokyu Toyoko Line Date and Time: December 21, 2011 (Wednesday) 13:30-16:30 Capacity: 30 people *Registration will close once full. Please apply early. Participation Fee [Early Bird Discount Price] 46,200 yen (including tax, text fee) for 2 participants from 1 company *Limited to Tech-Zone members who apply by December 7. Membership registration is free. *After December 7, the [Regular Price] will be 49,350 yen (including tax, text fee) per participant.
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basic information
**Lecture Summary** A lecturer who is well-versed in all aspects of the development, research, processes, and applications of piezoelectric ceramics, accumulated over 40 years of research at the university, will clearly explain the mechanisms of degradation and failure of piezoelectric ceramics, as well as methods for evaluating their lifespan. The content will be concise and easy to understand, based on experimental results. Questions related to the general field of piezoelectric ceramics are also welcome during the Q&A session. Researchers involved in the application of piezoelectric ceramics are strongly encouraged to attend.
Price range
P2
Delivery Time
P2
Applications/Examples of results
**Program** 1. Characteristics and Applications of Piezoelectric Ceramic Elements/Actuators 2. Evaluation Methods for the Failure Conditions and Lifetime of Piezoelectric Ceramic Elements 2.1) Driving Methods and Failure Models of Piezoelectric Ceramic Elements 2.2) Mechanisms of Electrical Breakdown and Degradation 2.3) Degradation Models of Mechanical Failure 2.4) Evaluation Methods for Lifetime Using Accelerated Testing 3. Insulation Breakdown and Microstructure of Piezoelectric Ceramic Elements 3.1) Insulation Breakdown Characteristics Affected by Manufacturing Conditions 3.2) Influence of Microstructure on Insulation Breakdown Characteristics 4. Dielectric Breakdown of Piezoelectric Ceramic Elements 4.1) Movement of Impurities, Ions, and Oxygen Defects and Dielectric Properties 4.2) Influence of Grain Boundaries on Dielectric Degradation 5. Influence of Space Charge on Electrical Degradation 5.1) Space Charge Models and Generation Mechanisms in Ferroelectrics 5.2) Influence of Space Charge on Insulation Breakdown of Piezoelectric Ceramics 5.3) Influence of Space Charge on Piezoelectric and Aging Properties 6. Mechanical Failure and Internal Stress of Piezoelectric Ceramic Elements 7. Examples of Lifetime Evaluation (Assessment of Laminated Piezoelectric Actuators)
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