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Lead magnesium niobate (PMN) materials are magnesium modified lead niobate compositions, which have low aging, superior coupling, high dielectric constant and a high charge constant. Lead magnesium niobate materials exhibit an electrostrictive or relaxor behavior where strain varies non-linearly (quadratically). These materials are used for hydrophones, actuators, receivers, projectors, sonar transducers and in micro-positioning devices. PMN forms solid solution alloys (PMN-PT) with lead titanate. Products & Services
Dielectric ceramics and substrates are electrical insulators with dielectric strength, dielectric constant and loss tangent values tailored for specific device applications.
Piezoelectric ceramics produce an electrical charge when a load is applied and deformation occurs. Piezoelectric ceramics can also produce force or deformation when an electrical charge is applied.
Electroceramics are ceramic materials that have been specially formulated for specific electrical, electro-magnetic, or optical properties. They include dielectric ceramics, electrostrictive ceramics, ferrite ceramics, garnets (ferromagnets), and piezoelectric ceramics.
Magnesium and magnesium alloys are nonferrous metals with low density, good ductility, moderate strength and good corrosion resistance.
Ceramic powders and precursors contain oxides, carbides, nitrides, carbon, and other non-metals. They are usually micron or mesh-size in distribution. Ceramic powders, sol-gel solutions and precursors are fabricated through atomization, crushing, milling, precipitation, and other chemical processes.
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Topics of Interest
PZN ceramics have high coefficients of electrostrictive and dielectric constants. They are used in the production of hydrophones, actuators, receivers, projectors, sonar transducers, integrated...
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Lead nickel niobate (PNN) is a lead niobate modified with nickel additions. Lead nickel niobate materials can exhibit an electrostrictive or relaxor behavior where strain varies non-linearly...
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Lead metaniobate exhibits properties not usually present in other types of piezoelectric ceramics such as its low mechanical factor QM and high coupling anisotropy (i.e., small values for lateral and...
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Electrostrictive ceramics are relaxor ferroelectric ceramics. Strain varies quadratically with electric field for an electrostrictor rather than linearly as in a piezoelectric ceramics. Relaxors...
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Lead zirconate titanate (PLZT) compositions were developed for moderate power applications. PLZT compositions have a low loss tangent resulting in low power losses as well as high distortion constant...
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