Advanced piezoelectric materials : science and technology by Kenji Uchino PDF

By Kenji Uchino

ISBN-10: 0857091182

ISBN-13: 9780857091185

ISBN-10: 0857096303

ISBN-13: 9780857096302

ISBN-10: 1845695348

ISBN-13: 9781845695347

ISBN-10: 1845699343

ISBN-13: 9781845699345

ISBN-10: 1845699750

ISBN-13: 9781845699758

ISBN-10: 1845699890

ISBN-13: 9781845699895

Annotation

Piezoelectric fabrics produce electrical fees on their surfaces because of utilizing mechanical pressure. they're utilized in the fabrication of a transforming into diversity of units similar to transducers (used, for instance, in ultrasound scanning), actuators (deployed in such components as vibration suppression in optical and microelectronic engineering), strain sensor units (such as gyroscopes) and more and more as a manner of manufacturing power. Their versatility has ended in a wealth of study to increase the diversity of piezoelectric fabrics and their power makes use of. complex piezoelectric fabrics: technological know-how and know-how offers a accomplished overview of those new fabrics, their homes, equipment of manufacture and functions. After an introductory evaluation of the improvement of piezoelectric fabrics, half one experiences many of the kinds of piezoelectric fabric, starting from lead zirconate titanate (PZT) piezo-ceramics, relaxor ferroelectric ceramics, lead-free piezo-ceramics, quartz-based piezoelectric fabrics, using lithium niobate and lithium in piezoelectrics, unmarried crystal piezoelectric fabrics, electroactive polymers (EAP) and piezoelectric composite fabrics. half discusses the best way to layout and fabricate piezo-materials with chapters on piezo-ceramics, unmarried crystal guidance options, skinny movie applied sciences, aerosol innovations and production applied sciences for piezoelectric transducers. the ultimate a part of the booklet appears to be like at purposes reminiscent of high-power piezoelectric fabrics and actuators in addition to the functionality of piezoelectric fabrics below pressure. With its wonderful editor and overseas group of specialist contributorsAdvanced Piezoelectric fabrics: technological know-how and Technologyis a typical reference for all these learning piezoelectric fabrics and utilizing them to improve new units in such components as microelectronics, optical, sound, structural and biomedical engineering -- Read more...

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A well-established framework exists to describe these materials, including their fundamental structure, basic behaviour and behaviour in transducers. 9 shows that many different properties are used in this framework. 2, making the transducer designer’s activities easier. However, understanding of the underlying general principles is repaid in development, particularly in broadening the range of options that are examined, and allows the adoption of innovative solutions. Piezoelectric ultrasonic transducers have many different configurations, including single- and dual-element devices and transducer arrays.

Langevin transducers can be used singly, for example for cutting and drilling, but can also be combined in arrays for underwater sonar. In the latter case, great care must be taken to ensure acoustic isolation between elements as the operating frequencies are so low. As there is little loss in the Langevin structure, any applications requiring more than narrowband operation are usually tackled with structures that generate resonances at more than one frequency, and potentially by utilising broadband electrical impedance matching.

To make this less likely, materials with high coercive fields are desirable, termed hard materials. Poling then typically takes place at an elevated temperature, making it easier to realign domains, before cooling to ambient temperature with the poling field applied. A corollary is that if the transducer in which the material is used is heated then depoling is possible, total depoling occurring if Tc is exceeded, and a rule of thumb indicates that the longterm operating temperature should not exceed Tc/2.

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Advanced piezoelectric materials : science and technology by Kenji Uchino


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