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EFFECT OF COATING CONTENT ON THE PROPERTIES OFA1(OH)3–Y(OH)3/ZrB2COMPOSITE PARTICLES

Author

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  • JIE-GUANG SONG

    (State Key Lab of Advanced Technology for Materials, Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China)

  • LIAN-MENG ZHANG

    (State Key Lab of Advanced Technology for Materials, Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China)

  • JUN-GUO LI

    (State Key Lab of Advanced Technology for Materials, Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China)

  • JIAN-RONG SONG

    (State Key Lab of Advanced Technology for Materials, Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China)

Abstract

Zirconium diboride is widely applied to high-temperature materials, but it is easily oxidized at high temperature. To increase the oxidation resistance of zirconium diboride at high temperature, theA1(OH)3–Y(OH)3is coated on theZrB2surface to prepareA1(OH)3–Y(OH)3/ZrB2composite particles. In this paper, the effect of coating content on the properties ofA1(OH)3–Y(OH)3/ZrB2composite particles is investigated. It is analyzed that the particle size and particle size distribution ofA1(OH)3–Y(OH)3/ZrB2composite particles is increased with the coating content. The dispersion ofZrB2particles is largely increased with the coating content of 0%–20%; the dispersion ofZrB2particles is similar when the coating content is from 20% to 30%. The oxidation resistance ratio of theZrB2particles with 30% coating content is the best than that of other conditions—it is about three times more than that of the originalZrB2particles.

Suggested Citation

  • Jie-Guang Song & Lian-Meng Zhang & Jun-Guo Li & Jian-Rong Song, 2007. "EFFECT OF COATING CONTENT ON THE PROPERTIES OFA1(OH)3–Y(OH)3/ZrB2COMPOSITE PARTICLES," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 14(03), pages 445-449.
    • Handle: RePEc:wsi:srlxxx:v:14:y:2007:i:03:n:s0218625x07009530
    DOI: 10.1142/S0218625X07009530
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