Morphology and mechanism study for the synthesis of ZrB2-SiC powders by different methods

Bin Zhao, Yun Zhang, Junping Li, Biyun Yang, Tingyu Wang, Yongzhen Hu, Dongfeng Sun, Ruixing Li, Shu Yin, Zhihai Feng, Tsugio Sato

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

ZrB2-SiC ceramics, whose SiC is generally incorporated into the system by mechanical mixing, are known to have better performance than monolithic ZrB2. Therefore, synthesis of duplex ZrB2-SiC powders is beneficial for improving sinterability and mechanical properties of ZrB2-SiC composites. In the present work, ZrB2-SiC duplex powders with different morphologies were synthesized at 1550 C for 2 h using as-synthesized amorphous hydrous ZrO2-SiO2. Both precipitation and sol-gel methods were used to prepare ZrO2-SiO 2 precursors. ZrB2-SiC powder derived from precipitation method presented a rod-like morphology with smaller irregular particles adhering to them. And the morphology from sol-gel method was equiaxed shape with a very uniform distribution for principal components of Zr and Si.

Original languageEnglish
Pages (from-to)1-5
Number of pages5
JournalJournal of Solid State Chemistry
Volume207
DOIs
Publication statusPublished - 2013 Sep 24

Keywords

  • Morphology
  • Precipitation
  • Sol-gel
  • Synthesis
  • ZrB

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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  • Cite this

    Zhao, B., Zhang, Y., Li, J., Yang, B., Wang, T., Hu, Y., Sun, D., Li, R., Yin, S., Feng, Z., & Sato, T. (2013). Morphology and mechanism study for the synthesis of ZrB2-SiC powders by different methods. Journal of Solid State Chemistry, 207, 1-5. https://doi.org/10.1016/j.jssc.2013.08.028