Effect of Agglomerate Powders Particle Size on Preparation of Hollow Multiphase Ceramic Microspheres by Self-Reactive Quenching Method

Yong Shen Hou; Jian Jiang Wang; Yong Zhao Hou; Hong Fei Lou; Hai Tao Gao

doi:10.4028/www.scientific.net/AMR.873.285

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 873Effect of Agglomerate Powders Particle Size on...

Effect of Agglomerate Powders Particle Size on Preparation of Hollow Multiphase Ceramic Microspheres by Self-Reactive Quenching Method

Abstract:

Adopting self-reaction quenching technology based on flame spraying technique, self-propagating high-temperature synthesis and quick chilling technique, hollow multiphase ceramic microspheres are prepared. With Al+Cr₂O₃+Fe+Fe₂O₃+MnO₂ as reactive system, agglomerate powders are obtained and then distinguished as thick powders and fine powders according to the different particle size. The relationship between agglomerate powders initial particle size and hollow ceramic microspheres is analyzed by the means of SEM, EDS, XRD and particle-size analyzer. The result shows that average particle diameter of thick powder is 24.49μm and that of fine powder is 17.15μm. Particle diameters of thick powder quenching product distribute within the range of 20~50μm, and those of fine powder distribute within the range of 5~30μm. The thick powder quenching product phase composition consists of Mn₂AlO₄,Fe₂O₃,Fe₃O₄,FeCr₂O₄,Cr₂O₃,Al₂O₃The fine powder quenching product phase composition consists of Mn₂AlO₄,Fe₂O₃,FeCr₂O₄,Fe₃O_4.

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Periodical:

Advanced Materials Research (Volume 873)

Pages:

285-291

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.873.285

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Online since:

December 2013

Authors:

Yong Shen Hou*, Jian Jiang Wang, Yong Zhao Hou, Hong Fei Lou, Hai Tao Gao

Keywords:

Agglomerate Powders, Hollow Multiphase Ceramic Microspheres, Self-Reactive Quenching Method

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