Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/555
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Applied Physics | - |
dc.contributor | Materials Research Centre | - |
dc.creator | Lin, D | - |
dc.creator | Kwok, KW | - |
dc.creator | Chan, HLW | - |
dc.date.accessioned | 2014-12-11T08:24:46Z | - |
dc.date.available | 2014-12-11T08:24:46Z | - |
dc.identifier.issn | 0003-6951 | - |
dc.identifier.uri | http://hdl.handle.net/10397/555 | - |
dc.language.iso | en | en_US |
dc.publisher | American Institute of Physics | en_US |
dc.rights | © 2007 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in D.M. Lin, K.W. Kwok and H.L.W. Chan, Appl. Phys. Lett. 91, 143513 (2007) and may be found at http://link.aip.org/link/?apl/91/143513 | en_US |
dc.subject | Barium compounds | en_US |
dc.subject | Dielectric polarisation | en_US |
dc.subject | Manganese compounds | en_US |
dc.subject | Piezoceramics | en_US |
dc.subject | Potassium compounds | en_US |
dc.subject | Sodium compounds | en_US |
dc.subject | Solid-state phase transformations | en_US |
dc.subject | Zirconium | en_US |
dc.title | Dielectric and piezoelectric properties of (K[sub 0.5]Na[sub 0.5])NbO₃-Ba(Zr[sub 0.05]Ti[sub 0.95])O₃ lead-free ceramics | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.spage | 1 | - |
dc.identifier.epage | 3 | - |
dc.identifier.volume | 91 | - |
dc.identifier.doi | 10.1063/1.2794798 | - |
dcterms.abstract | Lead-free ceramics (1−x)(K[sub 0.5]Na[sub 0.5])NbO₃-xBa(Zr[sub 0.05]Ti[sub 0.95])O₃ doped with 1 mol % MnO₂ have been fabricated by pressureless sintering. With the MnO₂ doping, all the ceramics can be well sintered at 1100–1160 °C and exhibit a dense and pure perovskite structure. After the addition of Ba(Zr[sub 0.05]Ti[sub 0.95])O₃, a relax behavior is induced and both the cubic-tetragonal and tetragonal-orthorhombic phase transitions shift to lower temperatures. Coexistence of the orthorhombic and tetragonal phases is hence formed in the ceramics with 0.04<x<0.07 at room temperature. It is suggested that owing to the more possible polarization states resulting from the coexistence of the two phases, the piezoelectric and dielectric properties of the ceramics are enhanced significantly. The ceramic with x=0.06 exhibits the following optimum properties: d₃₃=234 pC/N, k[sub p]=0.49, k[sub t]=0.48, ε[sub r]=1191, tan δ=1.20%, and T[sub C]=318 °C. | - |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Applied physics letters, 4 Oct. 2007, v. 91, 143513, p. 1-3 | - |
dcterms.isPartOf | Applied physics letters | - |
dcterms.issued | 2007-10-04 | - |
dc.identifier.isi | WOS:000249974100127 | - |
dc.identifier.eissn | 1077-3118 | - |
dc.identifier.rosgroupid | r36082 | - |
dc.description.ros | 2007-2008 > Academic research: refereed > Publication in refereed journal | - |
dc.description.oa | Version of Record | en_US |
dc.identifier.FolderNumber | OA_IR/PIRA | en_US |
dc.description.pubStatus | Published | en_US |
Appears in Collections: | Journal/Magazine Article |
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File | Description | Size | Format | |
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lead-free-ceramics_07.pdf | 564.05 kB | Adobe PDF | View/Open |
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