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XIE Xianqing, FAN Tongxiang, ZHANG Di, et al. FABRICATION AND PROPERTIES OF HIGH DAMPING WOODCERAMICS/MB15 COMPOSITE[J]. Acta Materiae Compositae Sinica, 2003, 20(1): 7-11.
Citation: XIE Xianqing, FAN Tongxiang, ZHANG Di, et al. FABRICATION AND PROPERTIES OF HIGH DAMPING WOODCERAMICS/MB15 COMPOSITE[J]. Acta Materiae Compositae Sinica, 2003, 20(1): 7-11.
shu

FABRICATION AND PROPERTIES OF HIGH DAMPING WOODCERAMICS/MB15 COMPOSITE

  • 1.

    State Key Lab of Metal Matrix Composites, Shanghai Jiao Tong University, 200030 Shanghai,China;

  • 2.

    Industrial Research Institute of Aomori Prefecture, Hirosaki, 036-8363, Japan

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  • Received Date: September 02, 2001
  • Revised Date: November 17, 2001
    Abstract
  • Because high damping characteristics of materials are useful in the passive attenuation of noise and vibration in structures, and for the purpose of getting good mechanical properties and good damping properties simultaneously, a woodceramics/MB15 (WCMs/MB15 hereafter) composite was fabricated using the high-pressure infiltration system. Microstructural analysis as well as measurement of mechanical properties and damping behavior of WCMs/MB15 composite was made. Experimental results show that the MB15 has infiltrated most of the pores and the WCMs/MB15 composite has an obvious interpenetrating network structure. Its strengths and elastic moduli are much higher than those of unreinforced woodceramics. Damping value of the WCMs/MB15 composite improves based on that of woodceramics and increase with the testing temperature. The intrinsic damping of woodceramics and dislocation damping in the matrix are supposed to be the main contributor of the damping of WCMs/MB15 composite at room temperature while interface damping is likely to be responsible for the majority at elevated temperatures.
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