Dielectric Properties and Depoling Characteristics of Pb(Zr(0.95)Ti(0.05))O(3) Based Ceramics: Near-Critical Grain Size Behavior

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Chemically prepared Pb(Zr{sub 0.951}Ti{sub 0.949}){sub 0.982}Nb{sub 0.018}O{sub 3} ceramics were fabricated that were greater than 95% dense for sintering temperatures as low as 925 C. Achieving high density at low firing temperatures permitted isolation of the effects of grain size, from those due to porosity, on both dielectric and pressure induced transformation properties. Specifically, two samples of similar high density, but with grain sizes of 0.7 {micro}m and 8.5 {micro}m, respectively, were characterized. The hydrostatic ferroelectric (FE) to antiferroelectric (AFE) transformation pressure was substantially less (150 MPa) for the lower grain size material than for the larger grain size material. ... continued below

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7 p.

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RODRIGUEZ,MARK A.; SCOFIELD,TIMOTHY W.; TUTTLE,BRUCE A.; VOIGT,JAMES A.; YANG,PIN & ZEUCH,DAVID H. September 30, 1999.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM, and Livermore, CA (United States)
    Place of Publication: Albuquerque, New Mexico

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Chemically prepared Pb(Zr{sub 0.951}Ti{sub 0.949}){sub 0.982}Nb{sub 0.018}O{sub 3} ceramics were fabricated that were greater than 95% dense for sintering temperatures as low as 925 C. Achieving high density at low firing temperatures permitted isolation of the effects of grain size, from those due to porosity, on both dielectric and pressure induced transformation properties. Specifically, two samples of similar high density, but with grain sizes of 0.7 {micro}m and 8.5 {micro}m, respectively, were characterized. The hydrostatic ferroelectric (FE) to antiferroelectric (AFE) transformation pressure was substantially less (150 MPa) for the lower grain size material than for the larger grain size material. In addition, the dielectric constant increased and the Curie temperature decreased for the sample with lower grain size. All three properties: dielectric constant magnitude, Curie point shift, and FE to AFE phase transformation pressure were shown to be semi-quantitatively consistent with internal stress levels on the order of 100 MPa.

Physical Description

7 p.

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OSTI as DE00014068

Medium: P; Size: 7 pages

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  • 9th US-Japan Seminar on Dielectric Piezoelectric Materials, Okinawa (JP), 11/03/1999--11/05/1999

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  • Report No.: SAND99-2556C
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 14068
  • Archival Resource Key: ark:/67531/metadc620962

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  • September 30, 1999

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 11, 2017, 3:13 p.m.

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RODRIGUEZ,MARK A.; SCOFIELD,TIMOTHY W.; TUTTLE,BRUCE A.; VOIGT,JAMES A.; YANG,PIN & ZEUCH,DAVID H. Dielectric Properties and Depoling Characteristics of Pb(Zr(0.95)Ti(0.05))O(3) Based Ceramics: Near-Critical Grain Size Behavior, article, September 30, 1999; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc620962/: accessed December 14, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.