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    Measuring Strain Distribution During Mesoscopic Domain Reorientation in a Ferroelectric Material

    Source: Journal of Engineering Materials and Technology:;1998:;volume( 120 ):;issue: 001::page 1
    Author:
    S. B. Park
    ,
    S. S. Park
    ,
    G. P. Carman
    ,
    H. T. Hahn
    DOI: 10.1115/1.2806833
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: In this paper, we present the results of an experimental study focused on understanding the strain concentrations arising due to nonlinear phenomena associated with polarization switching. A moire interferometry technique is used to measure the normal and shear strains of a PZT-5H piezoceramic undergoing 180 and 90 deg switching. These results include the strain concentrations measured between polarized regions oriented 180 and 90 deg apart. The results show that very large strain mismatches (e.g., as large as 4500 microstrains) occur along the boundary of dissimilar oriented domains, suggesting a source of microcrack initiation and fatigue degradation.
    keyword(s): Fatigue , Interferometry , Piezoelectric ceramics , Polarization (Electricity) , Shear (Mechanics) , Microcracks AND Strain measurement ,
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      Measuring Strain Distribution During Mesoscopic Domain Reorientation in a Ferroelectric Material

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/120539
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    contributor authorS. B. Park
    contributor authorS. S. Park
    contributor authorG. P. Carman
    contributor authorH. T. Hahn
    date accessioned2017-05-08T23:56:48Z
    date available2017-05-08T23:56:48Z
    date copyrightJanuary, 1998
    date issued1998
    identifier issn0094-4289
    identifier otherJEMTA8-26989#1_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/120539
    description abstractIn this paper, we present the results of an experimental study focused on understanding the strain concentrations arising due to nonlinear phenomena associated with polarization switching. A moire interferometry technique is used to measure the normal and shear strains of a PZT-5H piezoceramic undergoing 180 and 90 deg switching. These results include the strain concentrations measured between polarized regions oriented 180 and 90 deg apart. The results show that very large strain mismatches (e.g., as large as 4500 microstrains) occur along the boundary of dissimilar oriented domains, suggesting a source of microcrack initiation and fatigue degradation.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleMeasuring Strain Distribution During Mesoscopic Domain Reorientation in a Ferroelectric Material
    typeJournal Paper
    journal volume120
    journal issue1
    journal titleJournal of Engineering Materials and Technology
    identifier doi10.1115/1.2806833
    journal fristpage1
    journal lastpage6
    identifier eissn1528-8889
    keywordsFatigue
    keywordsInterferometry
    keywordsPiezoelectric ceramics
    keywordsPolarization (Electricity)
    keywordsShear (Mechanics)
    keywordsMicrocracks AND Strain measurement
    treeJournal of Engineering Materials and Technology:;1998:;volume( 120 ):;issue: 001
    contenttypeFulltext
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