Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.msea.2008.08.034
DC FieldValue
dc.titleDeformation and fracture behaviors of [0 1 1]-poled Pb(Zn1/3Nb2/3)O3-7%PbTiO3 single crystals
dc.contributor.authorZeng, K.
dc.contributor.authorNg, Y.
dc.contributor.authorShen, L.
dc.contributor.authorRajan, K.K.
dc.contributor.authorLim, L.-C.
dc.date.accessioned2014-10-07T09:02:20Z
dc.date.available2014-10-07T09:02:20Z
dc.date.issued2008-12-20
dc.identifier.citationZeng, K., Ng, Y., Shen, L., Rajan, K.K., Lim, L.-C. (2008-12-20). Deformation and fracture behaviors of [0 1 1]-poled Pb(Zn1/3Nb2/3)O3-7%PbTiO3 single crystals. Materials Science and Engineering A 498 (1-2) : 457-463. ScholarBank@NUS Repository. https://doi.org/10.1016/j.msea.2008.08.034
dc.identifier.issn09215093
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/84958
dc.description.abstractThe deformation, crack initiation and fracture behavior of [0 1 1]-oriented Pb(Zn1/3Nb2/3)O3-7%PbTiO3 (PZN-7%PT) single crystal samples in both unpoled and poled states have been characterized by means of nano- and microindentation as well as three-point bending experiments. It is found that poling has increased both the elastic modulus and hardness of the (0 1 1) surfaces of the crystal, in addition, the critical indentation load for crack initiation is also increased from 0.225 N for unpoled (0 1 1) surface to 0.475 N for the positive polarity surface (which corresponds to the indentation load direction is against the poling direction), and a slight decreasing in the critical indentation load for crack initiation is noted for the negative polarity surface. It is also found that poling has little effects on the apparent fracture toughness of the (0 1 1) surfaces. These results are compared with those of [0 0 1]-oriented crystals [K.Y. Zeng, Y.S. Pang, L. Shen, K.K. Rajan, L.-C. Lim, Mater. Sci. Eng. A 472 (2008) 35]. The observations are interpreted in term of a compressive stress layer induced by poling in the positive polarity surfaces of the [0 1 1]-poled crystal. © 2008 Elsevier B.V. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.msea.2008.08.034
dc.sourceScopus
dc.subjectCracks
dc.subjectDeformation
dc.subjectFracture
dc.subjectIndentation
dc.subjectPiezo-materials
dc.subjectSingle crystal
dc.typeArticle
dc.contributor.departmentMECHANICAL ENGINEERING
dc.description.doi10.1016/j.msea.2008.08.034
dc.description.sourcetitleMaterials Science and Engineering A
dc.description.volume498
dc.description.issue1-2
dc.description.page457-463
dc.identifier.isiut000261420500063
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