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首页> 外文期刊>Journal of Thermal Analysis and Calorimetry >Synthesis and characterization of alumina- and zirconia-based powders obtained by the ultrasonic spray pyrolysis
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Synthesis and characterization of alumina- and zirconia-based powders obtained by the ultrasonic spray pyrolysis

机译：超声喷雾热解法制备的氧化铝和氧化锆基粉末的合成与表征

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摘要

The ultrasonic spray pyrolysis (USP) technique was used for synthesis of alumina- and zirconia-based powders. The starting agents were aqueous solutions, atomized by the ultrasonic spray generator and pyrolized in the furnace under the open-air conditions. The powders prepared by USP were in the form of solid and hollow aggregates (spheres) consisted of nanosize amorphous grains as determined by the microscopy and the X-ray diffraction techniques. The alumina-based powders were consolidated by the pulse plasma sintering resulting in single-phase materials. Different behavior of solid and hollow particles during the isostatic sintering is found; a higher degree of deformation of spheres is observed in the second case.
机译：超声喷雾热解（USP）技术用于合成氧化铝和氧化锆基粉末。起始剂是水溶液，通过超声喷雾发生器雾化，并在露天条件下在炉中热解。 USP制备的粉末呈固态和空心聚集体（球体）的形式，由显微镜和X射线衍射技术确定，由纳米级无定形晶粒组成。通过脉冲等离子体烧结将氧化铝基粉末固结，得到单相材料。发现在等静压烧结过程中，固体颗粒和空心颗粒的行为不同；在第二种情况下，观察到球的变形程度更高。

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  • 作者

    W. Kucza; J. Obłąkowski; R. Gajerski; S. Łabuś; M. Danielewski; A. Małecki; J. Morgiel; A. Michalski;

  • 作者单位

    Faculty of Materials Science and Ceramics AGH University of Science and Technology Cracow Poland 30-059 Al. Mickiewicza 30;

    Faculty of Materials Science and Ceramics AGH University of Science and Technology Cracow Poland 30-059 Al. Mickiewicza 30;

    Faculty of Materials Science and Ceramics AGH University of Science and Technology Cracow Poland 30-059 Al. Mickiewicza 30;

    Faculty of Materials Science and Ceramics AGH University of Science and Technology Cracow Poland 30-059 Al. Mickiewicza 30;

    Faculty of Materials Science and Ceramics AGH University of Science and Technology Cracow Poland 30-059 Al. Mickiewicza 30;

    Faculty of Materials Science and Ceramics AGH University of Science and Technology Cracow Poland 30-059 Al. Mickiewicza 30;

    Institute of Metallurgy and Materials Sciences Polish Academy of Sciences Cracow Poland 30-059 Reymonta 25;

    Faculty of Materials Science and Engineering Warsaw University of Technology Warsaw Poland 02-507 Wołoska 141;

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  • 正文语种 eng
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  • 关键词

    alumina; plasma sintering; SEM; spray pyrolysis; TEM; zirconia;

    机译：氧化铝;等离子烧结;SEM;喷雾热解;TEM;氧化锆;

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