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首页> 外文会议>Mechanical properties and performance of engineering ceramics and composites IX >EFFECTS ON MECHANICAL AND THERMAL PROPERTIES BY VARYING THE INTERCONNECTIVITY OF SiC IN A Si:SiC COMPOSITE SYSTEM
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EFFECTS ON MECHANICAL AND THERMAL PROPERTIES BY VARYING THE INTERCONNECTIVITY OF SiC IN A Si:SiC COMPOSITE SYSTEM

机译：通过改变Si：SiC复合系统中SiC的互连性对机械和热性能的影响

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摘要

This study expands upon a previous effort and examines the effects of firing temperature on thermal conductivity and thermal expansion or Reaction Bonded SiC (RBSC). RBSC lends itself to many potential applications including: thermal applications due to the high thermal conductivity, low tailorable thermal expansion, and high specific stiffness; armor applications due to the high hardness, high Young's modulus, and low density; and also high-temperature wear applications due to the high hardness and stability at elevated temperatures. Composites of silicon carbide particles (SiCp) and silicon (Si) are fabricated by the reactive infiltration of molten Si into preforms of said particles and carbon. Through heat treatment methods, necking of the SiCp is promoted in the pre-infiltration state which will allow further tailoring of material properties. Correlations are drawn between the firing temperature and the resultant mechanical and thermal properties.
机译：这项研究是在先前的努力基础上展开的，并研究了烧成温度对热导率和热膨胀或反应结​​合SiC（RBSC）的影响。 RBSC适合于许多潜在的应用，包括：高导热率，低可定制的热膨胀和高比刚度的热应用；具有高硬度，高杨氏模量和低密度的装甲应用；由于在高温下具有较高的硬度和稳定性，因此也适用于高温磨损。碳化硅颗粒（SiCp）和硅（Si）的复合材料是通过将熔融的硅反应性渗入所述颗粒和碳的预成型坯中制成的。通过热处理方法，在预浸状态下会促进SiCp的颈缩，这将允许进一​​步调整材料性能。在烧制温度与所得的机械和热性能之间得出相关性。

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