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Co-Fired Piezo Bimorph Elements Ideal for Use in High Temperature Applications

Fri, 01/28/2011 - 9:23am
Medical Design Technology
Co-Fired Piezo Bimorph Elements Ideal for Use in High Temperature ApplicationsMorgan Technical Ceramics’ ElectroCeramics business (MTC), located in Bedford OH, announces that it designs and manufactures co-fired piezo (PZT) bimorph elements for use in aerospace, medical, automotive and general industrial sensor and actuator applications. The co-fired PZT bimorph elements are more mechanically stable than a conventional bimorph and are ideal for harsh environments. They are increasingly being used in critical aerospace applications, where mechanical and electrical stability are key performance attributes.

MTC’s co-fired PZT bimorphs are a two-layer PZT device, configured with a central encapsulated electrode region. Similar in construction to a conventional bonded bimorph, the co-fired bimorph is fired at a 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. It also facilitates their use in harsh environments, since there is a uniform mechanical interface at the edges, with no seams for potential infiltration. In addition, the device behavior will have similar characteristics to the bulk PZT properties.

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