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WANG Ying-de, FENG Chun-xiang, WANG Juan, et al. PREPARATION OF TRILOBAL SiC FIBERS WITH RADAR-ABSORBING PROPERTIES[J]. Acta Materiae Compositae Sinica, 2001, 18(1): 42-45.
Citation: WANG Ying-de, FENG Chun-xiang, WANG Juan, et al. PREPARATION OF TRILOBAL SiC FIBERS WITH RADAR-ABSORBING PROPERTIES[J]. Acta Materiae Compositae Sinica, 2001, 18(1): 42-45.
shu

PREPARATION OF TRILOBAL SiC FIBERS WITH RADAR-ABSORBING PROPERTIES

  • Dept. of Material Engineering and Applied Chemistry, National University of Defence Technology, Changsha 410073,China

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  • Received Date: July 23, 1999
  • Revised Date: September 24, 1999
    Abstract
  • Trilobal polycarbosilane(PCS) fibers were prepared by melt spinning PCS precursor through Y-shaped spinneret. Then, after curing in air and heat treatment under N2 atmosphere, trilobal silicon carbide fibers were manufactured. The effect of spinning temperature and velocity on the fibers degree of profile was analyzed. Preparation conditions such as curing, heat-treatment and microwave-absorbing properties were also studied. Compared with circular SiC fibers, the fiber exhibits higher mechanical properties and microwave-absorbing properties. The structural radar absorbing materials, composed of the fibers with resin, exhibit a reflection attenuation amount of 10~20 dB in the range of 8~18 GHz.
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