Enhanced oxidation resistance of carbon fiber reinforced lithium aluminosilicate composites by boron doping
Enhanced oxidation resistance of carbon fiber reinforced lithium aluminosilicate composites by boron doping
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DOI：
10.1016/j.corsci.2015.07.011
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发表时间：
2015-10
影响因子：
8.3
通讯作者：
L. Xia;Feng Jin;Tao Zhang;X. Hu;Songsong Wu;G. Wen
中科院分区：
文献类型：
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作者：
L. Xia;Feng Jin;Tao Zhang;X. Hu;Songsong Wu;G. Wen
制备了硼掺杂改性碳纤维增强硅铝锂基复合材料（Cf/LAS），并在静态空气中氧化1h。分析了试样的失重、残余强度和显微组织。结果表明，硼的掺入对提高Cf/LAS的抗氧化性能有显著的作用。掺硼的Cf/LAS具有优异的抗氧化性能，是由于高温下LAS基体的低粘度与碳纤维表面石墨晶体形成的协同作用。
Carbon fiber reinforced lithium aluminosilicate matrix composites (Cf/LAS) modified with boron doping were fabricated and oxidized for 1 h in static air. Weight loss, residual strength and microstructure were analyzed. The results indicate that boron doping has a remarkable effect on improving the oxidation resistance for Cf/LAS. The synergism of low viscosity of LAS matrix at high temperature and formation of graphite crystals on the surface of carbon fibers, is responsible for excellent oxidation resistance of the boron doped Cf/LAS.