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首页> 中文期刊> 《材料科学与工程学报》 >Preparation of Lanthanum-Doped Pb(Zr,Ti)O3 Ceramics Sheets by Tape Casting

Preparation of Lanthanum-Doped Pb(Zr,Ti)O3 Ceramics Sheets by Tape Casting

         
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摘要

The physical and electrical properties of lanthanum doped Pb(Zr,Ti)O3 ceramic sheets (PLZT) which were prepared by tape casting method were carried out. Tape casting of lanthanum modified PZT was performed using commercial cellulose acetate binders and poly(ethylene glycol) plasticizers in ethanol solvent. Tapes from these slips were casted on a polymer substrate. The PLZT green tapes were stacked for 5 units and sintered in air at 1050℃ for 1 h with heating rate 5℃/min. SEM micrographs show that the tape is dense (90.26% of theoretical density) and rather uniform with grain size of approximately 1.1 ? m. The dielectric permittivity and loss tangent of PLZT ceramics as a function of temperature at 1 kHz suggest that the compounds exhibit a phase transition of diffuse type. The transition temperature (Tm) and piezoelectric coefficient (d33) were 110℃ and 117 pC/N, respectively.

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  • 来源
    《材料科学与工程学报》 |2007年第6期|899-901|共3页
  • 作者

  • 作者单位

    Department of Physics, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, THAILAND;

    Department of Physics, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, THAILAND;

    Department of Physics, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, THAILAND;

    Mae Fah Luang University, Chiang Rai, 57100, THAILAND;

    Department of Physics, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, THAILAND;

  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类 功能材料;
  • 关键词

    PLZT; electrical properties; tape casting;

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