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Effect of Boron Nitride Addition on Ablation Characteristics of Carbon Fiber Reinforced Resorcinol Formaldehyde Composites
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2020-10-19 , DOI: 10.1021/acs.iecr.0c03818 Alex Daniel 1 , Ivaturi Srikanth 1 , Balasubramanian Kandasubramanian 2
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2020-10-19 , DOI: 10.1021/acs.iecr.0c03818 Alex Daniel 1 , Ivaturi Srikanth 1 , Balasubramanian Kandasubramanian 2
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The effect of boron nitride (BN) addition in carbon fiber reinforced resorcinol formaldehyde (C-RF) composites was explored in this study. Composites are altered with various weight proportions of boron nitride to make boron nitride incorporated carbon fiber reinforced resorcinol formaldehyde (BN-C-RF) composites. The ablation resistance of BN-C-RF composites was observed to be the maximum when the BN to RF ratio is 0.05:1. The thermomechanical properties of composites were studied. The thermally ablated composites were evaluated for their crystallographic changes. Formation of turbostratic carbon and turbostratic BN as well as changes in graphitization levels that occurred due to high-temperature exposure of composites were studied. The microstructural changes of the composites were analyzed by spectroscopy and microscopic studies. Results indicated the presence of oxides on the ablated surface, which was attributed to the reaction of BN with the available oxygen in the oxyacetylene flame environment and its resultant conversion to B2O3. The crystallographic transformations and microstructural changes, along with the oxidation of boron nitride, have enhanced the ablation resistance characteristics of the BN-C-RF system.
中文翻译：
氮化硼添加对碳纤维增强间苯二酚甲醛复合材料烧蚀性能的影响。
本研究探讨了氮化硼（BN）在碳纤维增强间苯二酚甲醛（C-RF）复合材料中的作用。用各种重量比例的氮化硼改变复合材料，以制成掺有氮化硼的碳纤维增强间苯二酚甲醛（BN-C-RF）复合材料。当BN与RF之比为0.05：1时，观察到BN-C-RF复合材料的抗烧蚀性最大。研究了复合材料的热机械性能。评价热烧蚀的复合材料的晶体学变化。研究了层状碳和层状BN的形成以及由于复合材料的高温暴露而引起的石墨化水平的变化。通过光谱学和微观研究分析了复合材料的微观结构变化。2 O 3。晶体学转变和微观结构变化以及氮化硼的氧化增强了BN-C-RF系统的抗烧蚀性能。
更新日期：2020-10-29
中文翻译：
氮化硼添加对碳纤维增强间苯二酚甲醛复合材料烧蚀性能的影响。
本研究探讨了氮化硼（BN）在碳纤维增强间苯二酚甲醛（C-RF）复合材料中的作用。用各种重量比例的氮化硼改变复合材料，以制成掺有氮化硼的碳纤维增强间苯二酚甲醛（BN-C-RF）复合材料。当BN与RF之比为0.05：1时，观察到BN-C-RF复合材料的抗烧蚀性最大。研究了复合材料的热机械性能。评价热烧蚀的复合材料的晶体学变化。研究了层状碳和层状BN的形成以及由于复合材料的高温暴露而引起的石墨化水平的变化。通过光谱学和微观研究分析了复合材料的微观结构变化。2 O 3。晶体学转变和微观结构变化以及氮化硼的氧化增强了BN-C-RF系统的抗烧蚀性能。
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