Product Details Supplier Info More products

Morgan’s co-fired PZT bimorph element provides mechanical and electrical stability in critical, high-temperature sensing and actuator applications in aerospace, automotive, oil and medical industries.

The bimorph gives reliable performance in extreme environments, enabling engineers and original equipment manufacturers to design more robust systems.

The co-fired PZT bimorph is a two-layer piezoelectric device, configured with a central encapsulated electrode region.

By electrically driving one of the two piezo plates to expand, the whole component bends – providing an active component.

It is similar in construction to conventional bonded bimorphs, but the co-fired bimorph is fired at a high temperature that sinters the two PZT layers into a monolithic structure separated only by the inner electrode.

This construction makes the bimorph more mechanically stable than alternative bimorphs, as there is a uniform mechanical interface at the edges.

There are no seams for potential infiltration and, as a result, they can be used in harsh environments.

Morgan Technical Ceramics manufactures the co-fired bimorphs from its piezoceramic materials PZT5A3, PZT5H2 and PZT702.

PZT702 is said to have excellent ageing characteristics, low signal-to-noise ratio and high sensitivity for impact and sound sensing.

The bimorphs are available in a variety of styles, including squares, rectangles, discs and rings, and they are offered in a range of sizes, from 6 to 74mm in length and 1 to 43mm in width.

Key high-temperature applications of bimorphs include oil exploration, machine and equipment monitoring, automotive engines, feedback sensors and accelerometers.

Other common uses include rate and gyroscope sensors for aerospace and automotive applications, and actuators within fine micro-manipulation mechanisms, including computer hard drives.

Morgan Advanced Ceramics

View full profile