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首页> 外文期刊>Materials Science and Engineering >Crystal structure and ferroelectric properties of Ca(Cu_(3-x)M_x)Ti_4O_(12) (M = Fe and Ni) ceramics
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Crystal structure and ferroelectric properties of Ca(Cu_(3-x)M_x)Ti_4O_(12) (M = Fe and Ni) ceramics

机译：Ca（Cu_（3-x）M_x）Ti_4O_（12）（M = Fe和Ni）陶瓷的晶体结构和铁电性能

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摘要

M-substituted Ca(Cu_(3-x)M_(x))Ti_4O_(12) (CCMTO) ceramics, where M=Fe and Ni, were synthesized and the influence of M substitutions for Cu on the crystal structure and ferroelectric properties of CCMTO ceramics were investigated in this study. From the variations in the lattice parameters of CCMTO ceramics, the solubility limit of Ni substitution for Cu in CaCu_(3-x)Ni_xTi_4O_(12) (CCNTO) ceramics was x = 0.2, whereas that of CaCu_(3-x)Fe_xTi_4O_12 (CCFTO) ceramics was x = 0.05. The crystal structural analysis of CCMTO ceramics revealed that the single phase of CCMTO ceramics belongs to the 123 non-centrosymmetric space group of /23; as a result, the P_r and E_c values of CCFTO ceramics at x = 0.05 were 1.8μC/cm~2 and 40kV/cm, respectively. The ferroelectric behavior of CCMTO ceramics by the M substitutions for Cu may be related to the displacement of a Ti~(4*) cation in the TiO_6 octahedra and tilting of the Ti-O-Ti angle because of the non-centrosymmetric space group.
机译：合成了M = Fe和Ni的M-取代的Ca（Cu_（3-x）M_（x））Ti_4O_（12）（CCMTO）陶瓷，以及M取代Cu对Mg的晶体结构和铁电性能的影响在这项研究中对CCMTO陶瓷进行了研究。从CCMTO陶瓷的晶格参数变化来看，CaCu_（3-x）Ni_xTi_4O_（12）（CCNTO）陶瓷中Cu替代Ni的溶解度极限为x = 0.2，而CaCu_（3-x）Fe_xTi_4O_12（ CCFTO）陶瓷为x = 0.05。 CCMTO陶瓷的晶体结构分析表明，CCMTO陶瓷的单相属于/ 23的123个非中心对称的空间群。结果，CCFTO陶瓷在x = 0.05时的P_r和E_c值分别为1.8μC/ cm〜2和40kV / cm。用M取代Cu的CCMTO陶瓷的铁电性能可能与Ti_（4 *）阳离子在TiO_6八面体中的位移和Ti-O-Ti角的倾斜有关，这是由于非中心对称的空间群引起的。

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  • 来源
    《Materials Science and Engineering》 |2013年第13期|875-880|共6页
  • 作者

    Tohru Moriyama; Akinori Kan; Hirotaka Ogawa;

  • 作者单位

    Department of Vehicle and Mechanical Engineering, Meijo University, 1-501 Shiogamaguchi, Tempaku-ku, Nagoya 468-8502, Japan;

    Department of Vehicle and Mechanical Engineering, Meijo University, 1-501 Shiogamaguchi, Tempaku-ku, Nagoya 468-8502, Japan;

    Department of Vehicle and Mechanical Engineering, Meijo University, 1-501 Shiogamaguchi, Tempaku-ku, Nagoya 468-8502, Japan;

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  • 正文语种 eng
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  • 关键词

    Ferroelectric; CaCu_3Ti_4O_(12); Crystal structure;

    机译：铁电;CaCu_3Ti_4O_（12）;晶体结构;

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