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Highly filled elastomeric matrix composites: Structure and property evolution at low temperature carbonization
Materials & Design ( IF 8.4 ) Pub Date : 2018-10-01 , DOI: 10.1016/j.matdes.2018.06.034
D.I. Chukov , A.A. Stepashkin , A.I. Salimon , S.D. Kaloshkin

Abstract A new approach for the development of carbon composites via a low-temperature carbonization of elastomer compounds highly filled with various carbon fillers and dispersed SiC was systematically implemented. A new class of economically attractive carbon composites was purposely designed and relevant low-temperature carbonization approach was systematically applied for elastomer compounds highly filled with various carbon fillers and dispersed SiC. It was shown that carbonization in the range of 320–360 °С results in a combination of sound structure and optimal properties. The composites carbonized at 360 °С were thoroughly studied in terms of structure, mechanical and thermal properties. The values of the tensile and the flexural strength of the composites lie in the range of 65–85 MPa and 75–125 MPa, respectively. Positive effect of SiC fillers on the thermal expansion behavior of the carbonized composites was found. The coefficient of thermal expansion for SiC-containing composites was around 20–35 ∗ 10−6 in the temperature range of 30–300 °C. Obtained combination of service properties assumes a range of applications in machine building and in the construction of high-demand mechanical parts.

中文翻译:

高填充弹性基复合材料:低温碳化下的结构和性能演变

摘要 系统地实施了一种通过低温碳化高度填充各种碳填料和分散的 SiC 的弹性体化合物来开发碳复合材料的新方法。有目的地设计了一类具有经济吸引力的新型碳复合材料,并将相关的低温碳化方法系统地应用于高度填充各种碳填料和分散 SiC 的弹性体化合物。结果表明,在 320-360 °С 范围内的碳化会产生良好的结构和最佳性能。在 360 °С 下碳化的复合材料在结构、机械和热性能方面进行了深入研究。复合材料的拉伸和弯曲强度值分别在 65-85 MPa 和 75-125 MPa 的范围内。发现碳化硅填料对碳化复合材料的热膨胀行为有积极影响。在 30-300 °C 的温度范围内,含 SiC 复合材料的热膨胀系数约为 20-35 * 10-6。获得的服务特性组合假定在机器制造和高要求机械零件的制造中具有广泛的应用。
更新日期:2018-10-01
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