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Ferroelectrics Volume 521, 2017 - Issue 1: The Joint Symposium of the Seventh International Conference of the Chinese Society of Micro-Nano Technology and Microsystems and Nanoengineering Summit 2016 (CSMNT2016 & MAN2016), Part I
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Articles

Fabrication of novel SiCN@ZrO2 core-shell ceramic microspheres by using a polymeric precursor

Liu Hong-liSchool of Materials Science and Engineering, Tianjin Chengjian University, Tianjin, China;Tianjin Key Laboratory of Soft Soil Characteristics and Engineering Environment, Tianjin, ChinaCorrespondence[email protected]
, Professor,
Wei NingSchool of Materials Science and Engineering, Tianjin Chengjian University, Tianjin, China;Tianjin Key Laboratory of Soft Soil Characteristics and Engineering Environment, Tianjin, ChinaCorrespondence[email protected]
,
Zhang Hai-yuanSchool of Materials Science and Engineering, Tianjin Chengjian University, Tianjin, China;Tianjin Key Laboratory of Soft Soil Characteristics and Engineering Environment, Tianjin, China
,
Li JingSchool of Materials Science and Engineering, Tianjin Chengjian University, Tianjin, China;Tianjin Key Laboratory of Soft Soil Characteristics and Engineering Environment, Tianjin, China
&
He XiangSchool of Materials Science and Engineering, Tianjin Chengjian University, Tianjin, China;Tianjin Key Laboratory of Soft Soil Characteristics and Engineering Environment, Tianjin, China
Pages 126-131 | Received 29 Jun 2017, Accepted 31 Aug 2017, Published online: 13 Dec 2017
 
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ABSTRACT

A novel type of PVSZ@ZrO2 core-shell ceramic microspheres were fabricated via emulsion technique, using polyvinylsilazane (PVSZ) and zirconium tetrabutoxide (ZBT) as raw materials. The PVSZ@ZrO2 core-shell microspheres were then converted to SiCN@ZrO2 ceramic microspheres through pyrolysis at 500–1400°C under nitrogen atmosphere. The size and the surface morphology of the obtained PVSZ@ZrO2 core-shell microspheres and SiCN@ZrO2 ceramic microspheres were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive spectroscopy (EDS), and Fourier transform infrared spectroscopy (FT-IR). The resultant SiCN@ZrO2 core-shell ceramic microspheres are composed of ZrO2, β-SiC and Si3N4 crystalline phases, with an average size of 0.75 μm.

Funding

Sponsored by The National Natural Science Foundation of China (No. 51472175) and the Tianjin Research Program of Application Foundation and Advanced Technology (No. 15JCZDJC37200).

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