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首页> 外文期刊>Plastics, Rubber and Composites >Ablative properties and mechanisms of hot vulcanised silicone rubber (HVSR) composites containing different fillers
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Ablative properties and mechanisms of hot vulcanised silicone rubber (HVSR) composites containing different fillers

机译：包含不同填料的热硫化硅橡胶（HVSR）复合材料的烧蚀性能和机理

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摘要

Hot vulcanised silicone rubber (HVSR) composites were prepared using silicon carbide (SiC), hafnium oxide (HfO2), zirconium oxide (ZrO2) and zirconium boride (ZrB2) as fillers, respectively. The tensile properties and the ablative response of the composites were examined. Tensile tests indicated that the tensile strength of HVSR was increased by the incorporation of ZrB2. The linear ablation rate of the composites increased in the order HVSR/ZrB2 < HVSR/ZrO2 < HVSR/SiC < HVSR/HfO2 < blank HVSR. The maximum back-face temperatures of the composites acquired from the burnt specimens during the ablation test were 350 and 364 K for the HVSR/ZrB2 and HVSR/ZrO2, respectively, compared to that of 333 K for the blank HVSR. Scanning electron microscopy and X-ray diffraction results showed that the dense and rigid ceramic layer was hard to peel off under the high pressure and shearing forces of ablative gases. The HVSR/ZrB2 specimens exhibited the best ablation resistance among all the composites involved in this work.
机译：分别使用碳化硅（SiC），氧化ha（HfO2），氧化锆（ZrO2）和硼化锆（ZrB2）作为填料制备热硫化硅橡胶（HVSR）复合材料。检查了复合材料的拉伸性能和烧蚀响应。拉伸试验表明，通过掺入ZrB2可以提高HVSR的拉伸强度。复合材料的线性烧蚀速率以HVSR / ZrB2

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