Piezoelectric pseudo-shear mode actuator made by L-shape joint bonding

Ruibin Liu, Qingming Wang, Qiming Zhang, L. E. Cross

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    A new type of pseudo-shear mode piezoelectric actuator is described which uses a particular bonding design on a multilayer piezoelectric ceramic stack. In this actuator, long thin rectangular surface electroded PZT piezoelectric sheets are stacked and epoxy bonded at alternate ends. The poling directions in the sheets are selected such that a common potential difference applied to the plates produces alternate lengthening and contraction through the action of d31 and thus a cumulative displacement over the whole length of the effectively "folded" ceramic. The rectangular stack of plates thus " shears" over to produce a substantial shear angle, hence the title of pseudo-shear mode actuator. In this paper, a new higher strength bonding for the anchoring of the alternate ends is discussed, and shown to permit the generation of large unloaded surface displacements and a high blocking force.

    Original languageEnglish (US)
    Pages (from-to)453-456
    Number of pages4
    JournalJournal of Materials Science: Materials in Electronics
    Volume9
    Issue number6
    DOIs
    StatePublished - Dec 1 1998

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    Actuators
    actuators
    shear
    Piezoelectric ceramics
    Piezoelectric actuators
    Multilayers
    piezoelectric actuators
    piezoelectric ceramics
    high strength
    contraction
    ceramics
    Direction compound

    All Science Journal Classification (ASJC) codes

    • Electronic, Optical and Magnetic Materials
    • Atomic and Molecular Physics, and Optics
    • Condensed Matter Physics
    • Electrical and Electronic Engineering

    Cite this

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    abstract = "A new type of pseudo-shear mode piezoelectric actuator is described which uses a particular bonding design on a multilayer piezoelectric ceramic stack. In this actuator, long thin rectangular surface electroded PZT piezoelectric sheets are stacked and epoxy bonded at alternate ends. The poling directions in the sheets are selected such that a common potential difference applied to the plates produces alternate lengthening and contraction through the action of d31 and thus a cumulative displacement over the whole length of the effectively {"}folded{"} ceramic. The rectangular stack of plates thus {"} shears{"} over to produce a substantial shear angle, hence the title of pseudo-shear mode actuator. In this paper, a new higher strength bonding for the anchoring of the alternate ends is discussed, and shown to permit the generation of large unloaded surface displacements and a high blocking force.",
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    Piezoelectric pseudo-shear mode actuator made by L-shape joint bonding. / Liu, Ruibin; Wang, Qingming; Zhang, Qiming; Cross, L. E.

    In: Journal of Materials Science: Materials in Electronics, Vol. 9, No. 6, 01.12.1998, p. 453-456.

    Research output: Contribution to journalArticle

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