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INFLUENCE OF SYNTHESIS CONDITIONS ONAl(OH)3–Y(OH)3/ZrB2COMPOSITE PARTICLES

Author

Listed:
  • 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

Although Zirconium diboride(ZrB2)is a desirable combination with some good properties, it is easily oxidized in the high-temperature air to impact high-temperature properties, which dwindles the applied range. In order to decrease oxidization and improve the high-temperature properties ofZrB2, the surface ofZrB2is coated withAl(OH)3–Y(OH)3to synthesizeAl(OH)3–Y(OH)3/ZrB2composite particles. In this paper, the conditions of synthesizingAl(OH)3–Y(OH)3/ZrB2composite particles by the co-precipitation method are investigated.Al(OH)3–Y(OH)3/ZrB2composite particles are synthesized under different conditions, but the conditions of synthesizingAl(OH)3–Y(OH)3/ZrB2composite particles with the better coating quality requirepH= 9, the appropriate concentration (Al3+= 0.017mol/L,Y3+= 0.01mol/L) of composite solution, reaction time of 60 min, titration speed of 0.05 ml/s, using the dispersant in theZrB2suspension and the ultrasonic dispersion, respectively.

Suggested Citation

  • Jie-Guang Song & Lian-Meng Zhang & Jun-Guo Li & Jian-Rong Song, 2007. "INFLUENCE OF SYNTHESIS CONDITIONS ONAl(OH)3–Y(OH)3/ZrB2COMPOSITE PARTICLES," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 14(06), pages 1135-1141.
    • Handle: RePEc:wsi:srlxxx:v:14:y:2007:i:06:n:s0218625x07010718
    DOI: 10.1142/S0218625X07010718
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