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首页> 外文期刊>Journal of materials science >Effects of V_2O_5 doping on the structure and electrical properties of BCZT lead-free piezoelectric ceramics
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Effects of V_2O_5 doping on the structure and electrical properties of BCZT lead-free piezoelectric ceramics

机译:V_2O_5掺杂对BCZT无铅压电陶瓷结构和电性能的影响

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摘要

Lead-free (Ba0.85Ca0.15)(Ti0.9Zr0.1)O-3-x mol%V2O5 (x=0, 0.05, 0.15, 0.20 and 0.50) were fabricated successfully via solid-state reaction route and the effects of V2O5 doping on the phase composition, microstructure and electrical properties of the ceramics have also been studied. The results indicated that the addition of V2O5 significantly lower the sintering temperature of BCZT ceramics to 1350 degrees C without sacrificing the high piezoelectrical properties. XRD results revealed that the phase structure was not changed with the introduction of V2O5. The sinterablity results and the SEM graphs indicated that small amount of V2O5 could effectively increase the density and grain size of BCZT ceramics. However, the electrical properties of BCZT ceramics deteriorate rapidly when the amount of V2O5 up to 0.5mol%. Thus, the piezoelectrical properties of BCZT-xV ceramics could be obtained at x=0.2mol%, which were as following: d(33)=466 pC/N, k(p)=32.5%, Q(m)=162, P-r=7.735 mu C/cm(2), epsilon(r)=3104 and tan=0.03, implying promising applications for lead-free piezoelectric ceramics.
机译:通过固态反应路线成功制备了无铅(Ba0.85Ca0.15)(Ti0.9Zr0.1)O-3-x mol%V2O5(x = 0,0.05,0.15,0.20和0.50)及其效果还研究了V2O5掺杂对陶瓷的相组成,微观结构和电性能的影响。结果表明,添加V2O5可以将BCZT陶瓷的烧结温度显着降低至1350摄氏度,而不会牺牲其高压电性能。 XRD结果表明,随着V2O5的引入,相结构没有改变。烧结性和SEM图表明,少量的V2O5可以有效地增加BCZT陶瓷的密度和晶粒尺寸。然而,当V 2 O 5的量高达0.5mol%时,BCZT陶瓷的电性能迅速劣化。因此,可以在x = 0.2mol%下获得BCZT-xV陶瓷的压电性能,其如下:d(33)= 466pC / N,k(p)= 32.5%,Q(m)= 162, Pr = 7.735μC / cm(2),ε(r)= 3104,tan = 0.03,这意味着无铅压电陶瓷的应用前景广阔。

著录项

  • 来源
    《Journal of materials science》 |2019年第3期|2854-2863|共10页
  • 作者单位

    Tianjin Univ, Sch Mat Sci & Engn, Key Lab Adv Ceram & Machining Technol, Minist Educ, Tianjin 300072, Peoples R China;

    Tianjin Univ, Sch Mat Sci & Engn, Key Lab Adv Ceram & Machining Technol, Minist Educ, Tianjin 300072, Peoples R China;

    Tianjin Univ, Sch Mat Sci & Engn, Key Lab Adv Ceram & Machining Technol, Minist Educ, Tianjin 300072, Peoples R China;

    Tianjin Univ, Sch Mat Sci & Engn, Key Lab Adv Ceram & Machining Technol, Minist Educ, Tianjin 300072, Peoples R China;

    Tianjin Univ, Sch Mat Sci & Engn, Key Lab Adv Ceram & Machining Technol, Minist Educ, Tianjin 300072, Peoples R China;

    Tianjin Univ, Sch Mat Sci & Engn, Key Lab Adv Ceram & Machining Technol, Minist Educ, Tianjin 300072, Peoples R China;

    Tianjin Univ, Sch Mat Sci & Engn, Key Lab Adv Ceram & Machining Technol, Minist Educ, Tianjin 300072, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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