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首页> 外文会议>International Forum on Advanced Material Science and Technology;IFAMST-7 >Fabrication of W-ZrC Cermets by Reactive Melt Infiltration with Polycarbosilane as Preforms' Adhesive
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Fabrication of W-ZrC Cermets by Reactive Melt Infiltration with Polycarbosilane as Preforms' Adhesive

机译：以聚碳硅烷为预成型体的胶粘剂通过熔体渗透渗透制备W-ZrC金属陶瓷

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Polycarbosilane (PCS) was introduced into preforms to prepare W-ZrC cermets by reactive melt infiltration (RMI). Properties and microstructure of the preforms and cermets were analyzed with XRD, SEM and EDS. The preforms had an open porosity of 42.0 %, and the WC particles were cemented by the pyrolysate of PCS. W-ZrC cermets were prepared by heating Zr_2Cu covered preforms to 1300 °C for 3 h. XRD revealed that the resulting cermets were made up of W, ZrC and W_2C. The cermets had an open porosity of 3.5 %, a flexural strength of 354.0 MPa, a flexural modulus of 192.5 GPa and a flexural toughness of 5.72 MPa·m~(1/2).
机译：将聚碳硅烷（PCS）引入预成型坯中，以通过反应性熔体渗透（RMI）制备W-ZrC金属陶瓷。用XRD，SEM和EDS分析了瓶坯和金属陶瓷的性能和微观结构。瓶坯的开孔率为42.0％，并且WC颗粒通过PCS的热解产物胶结。 W-ZrC金属陶瓷是通过将Zr_2Cu覆盖的预成型坯加热到1300°C 3 h来制备的。 X射线衍射表明，所得的金属陶瓷由W，ZrC和W_2C组成。金属陶瓷的开孔率为3.5％，弯曲强度为354.0MPa，弯曲模量为192.5GPa，弯曲韧性为5.72MPa·m〜（1/2）。

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