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    Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10259/5055

    Título
    Advanced Synthesis on Lead‐Free KxNa(1−x)NbO3 Piezoceramics for Medical Imaging Applications
    Autor
    Garroni, SebastianoUBU authority Orcid
    Senes, Nina .
    Iacomini, Antonio .
    Enzo, Stefano
    Mulas, Gabriele
    Pardo, Lorena .
    Cuesta López, SantiagoUBU authority Orcid
    Publicado en
    Physica status solidi (a). 2018, V. 215, n. 16, 1700896
    Editorial
    Wiley
    Fecha de publicación
    2018-08
    ISSN
    1862-6300
    DOI
    10.1002/pssa.201700896
    Abstract
    Ultrasonic imaging system is a non‐invasive medical imaging technique that has become one of the most widely used diagnostic tools in modern medicine for detecting prenatal anomalies and deep screening of biological tissues. One of the core components of the ultrasound system is represented by the probe where is located the transducer which produces mechanical energy in response to electrical signals, and conversely, produce electrical signals in response to mechanical stimulus. The ultrasound transducer in the probe is generally made of a piezoelectric ceramic material such as lead zirconate titanate (PZT), which present two important limitations as the presence of toxic material as the lead, and low acoustic impedance ascribable to its high density. For these reasons, it is necessary to focus the research on new eco‐friendly piezoelectric materials with properties comparable with PZT. Among them potassium sodium niobate is considered as a leading lead‐free candidate to replace lead‐based piezoceramics, resulting the most promising. In this review, the most relevant and advanced synthesis approaches and the unique properties of this class of lead‐free piezoceramics are presented in detail.
    Palabras clave
    KxNa(1 x)NbO3
    lead-free piezoceramics
    solid-state reactions
    ultrasonictransducer
    wet-chemistry
    Materia
    Física
    Physics
    URI
    http://hdl.handle.net/10259/5055
    Versión del editor
    https://doi.org/10.1002/pssa.201700896
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    PSSA-JOURNAL-S-17-01088.pdf
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