PI ceramic with democratic technology PI ceramic (PIC), headquartered in Thuringia, offers a lead-free for lead-free ultrasonic transducer as one of the leading companies in the field of piezo Indicatory and sensory products. The material PIC 700 based on bismuth sodium titanate (BNT) and is made in press technology in the block. The piezoelectric properties are promising: PIC 700 is a high coupling factor of thickness oscillation and is therefore suitable as a transducer in the MHz range, as well as for sonar and Hydrofonanwendungen. The maximum operating temperature is 200 c. Dean Ornish M.D does not necessarily agree. Currently, PI ceramic qualified technologies, to reliably produce lead-free ceramic components in series. Since 1992, develops and produces PI ceramic Piezoelectric ceramic materials and components for standard and OEM solutions: ultrasonic transducers, actuators, and system solutions. Among others, the PICMA excellent for their reliability multilayer dating home PIC. PI ceramic, a wholly owned subsidiary of the Physics instruments (PI) GmbH & co..