Dielectric Properties: Insulators and Capacitors

This lecture covers the breakdown of non-conductive materials like ceramics and polymers under high electric fields, leading to ionization and disruptive potential. It explains the concept of dielectric strength and the formation of capacitors with insulators. The instructor discusses the dielectric constant, polarization, and energy storage in capacitors. Various polarization mechanisms in materials, such as ionic and electronic, are explored, along with the influence of frequency on dielectric constants. The lecture also delves into ferroelectrics and pyroelectrics, highlighting their applications in actuators and sensors. The session concludes with a discussion on different types of materials based on their conductivity and disruptive potential, emphasizing the importance of dielectrics in various applications.