Piezoelectric Materials

Several types of piezoelectric ceramic materials are available. Each type is tailored towards the requirements of particular applications. This is achieved by changing the chemical composition of the ceramic to enhance specific properties. The ceramic materials are arranged in three groups: Hard Materials, Soft Materials and Custom Materials.

High Power "Hard" Materials
High power or "hard" ceramics can withstand high levels of electrical excitation and mechanical stress. These materials are suited for high voltage or high power generators and transducers.

High Sensitivity "Soft" Materials
High sensitivity or "soft" ceramics feature high sensitivity and permittivity, but under high drive conditions are susceptible to self-heating beyond their operating temperature range. These materials are used in various sensors, low-power motor-type transducers, receivers, and low power generators.

High Performance Single Crystal Piezo Material
Morgan Electro Ceramics announces the release of our new single crystal piezoelectric material, PMNT-28, for use in transducer and actuator devices. The new family of U.S. manufactured materials was formulated to exhibit very large electromechanical coupling coefficients and also offers high dielectric constants and low dielectric losses. Properties and Prices

Custom Materials
Several ceramic materials have been formulated to meet the particular needs of specific applications.

Standard Shapes and Sizes
Extensive materials and engineering expertise allows the Division to produce a wide range of experimental and prototype components in addition to the standard range of products. Our applications engineers are always pleased to assist and advise customers seeking new solutions to problems involving piezoelectric materials. Standard Mechanical Tolerances

Standard Plates
Plates are normally cut from an option of three alternative standard sizes, i.e. Iateral dimensions of 40 x 20mm, 50 x 50mm, 89 x 42mm. Still larger sizes up to 150mm lengths can be cut from discs.

Standard Discs
Discs can be manufactured up to 1 50mm diameter with a thickness range from 0.2mm up to 40mm but not in every combination for every material.

Hemispheres & Focal Bowls
Hemispheres are available in two forms:- Unmachined, low cost, hemispheres with mechanical tolerances + 3% or 0.3mm whichever is greater. Fully machined hemispheres and focal bowls to standard, mechanical tolerances.

Standard Tubes
The table gives the range of standard tubes available. In addition we are able to manufacture outside this range and will be pleased to discuss customers' particular requirements.

Standard Rings
Examples of some of our standard rings are listed in the table, but tooling for a much wider range of sizes is also available. The thickness of rings is easily varied.

Electrodes
Fired on silver electrodes are usually applied to all ceramics (except shear plates). Typical silver thickness is 71µm (0,071mm) per electrode which is satisfactory for most applications. Thicker silver coatings can be applied if required. Cold silver electrodes are applied to shear plates and the cold silver cannot be soldered.

Piezo Material For Medical Devices
Morgan Electro Ceramics announces the release of our new piezoceramic material, PZT-5K, for use in medical sensors and low power medical devices. The new material is specifically formulated with high coupling values and high dielectric properties and is well suited for thin and small parts. Applications include sensors for catheters, blood pressure, auditory sounds, vascular flow, and medical imaging.

Each MEC Manufacturing Site has a Sales Department who will be pleased to respond to your enquiries. In addition, the Morgan Technical Ceramics Regional Sales Offices can provide you with local support.

Europe | Americas | Asia

If you have a general enquiry we suggest you use our enquiry form.

The information stored in the text and graphics within this web site are
© Morgan Electro Ceramics, 2007.
No information may be used without prior written consent.