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Sintering process effect on the BaTiO_3 ceramic properties with the hydrothermally prepared powders

机译：水热粉末烧结工艺对BaTiO_3陶瓷性能的影响。

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摘要

Ferroelectric barium titanate is an important traditional ferroelectric and dielectric material. Multilayer ceramic capacitors require nano-sized ceramics in technology. We synthesized nanocrystalline BaTiO~(3)powders by a hydrothermal method, pressed them into pellets and then, sintered nano sized BaTiO~(3)ceramics by conventional sintering method (CSM) and two-step sintering (TSS) process for comparison. The internal pore increases with the sintering temperature in the samples sintered with CSM while the samples sintered with TSS route show uniform grains without clear pores. BaTiO~(3)ceramics sintered with TSS process exhibit tetragonal structure and strong ferroelectric behaviors while those sintered with CSM mainly reveal cubic perovskite properties.
机译：铁电钛酸钡是一种重要的传统铁电和介电材料。多层陶瓷电容器在技术上需要纳米尺寸的陶瓷。我们通过水热法合成了纳米晶BaTiO〜（3）粉体，将其压成颗粒，然后采用常规烧结法（CSM）和两步烧结法（TSS）进行了烧结。 CSM烧结样品的内部孔隙随烧结温度的升高而增加，而TSS途径烧结的样品则显示出均匀的晶粒而没有清晰的孔隙。 TSS法烧结的BaTiO〜（3）陶瓷表现出四方结构和强铁电性能，而CSM烧结的BaTiO〜（3）陶瓷则主要表现出立方钙钛矿性质。

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  • 来源
    《Journal of materials science》 |2018年第17期|14883-14889|共7页
  • 作者

    Li Lv; Yan Wang; Lin Gan; Qian Liu; Jian-Ping Zhou;

  • 作者单位

    Information Engineering College, Shaanxi Fashion Engineering University,School of Physics and Information Technology, Shaanxi Normal University;

    School of Physics and Information Technology, Shaanxi Normal University;

    Information Engineering College, Shaanxi Fashion Engineering University;

    Shijiazhuang Institute of Technology;

    School of Physics and Information Technology, Shaanxi Normal University;

  • 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);
  • 原文格式 PDF
  • 正文语种 eng
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