OALib Journal期刊
ISSN: 2333-9721
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氮化硼纳米管的显微表征及其高分辨成像研究
, PP. 905-909
Keywords: 氮化硼纳米管,微观结构,高分辨像
Abstract:
采用化学气相沉积法制备了多壁氮化硼纳米管BNNT),高分辨电镜研究表明,BNNT一个重要的结构特征为层间有序堆垛,且大多以菱面体(r-BN)方式堆垛;多数BNNT具有择优生长取向,管轴沿BN六角网格平面的[10-10]方向,即多数BNNT为锯齿型.基于其显微结构特征建立了多壁BNNT的结构模型,并通过计算机模拟其高分辨成像特点,发现r-BN堆垛的BNNT的HRTEM成像效果对其直径、层数以及观察视角等参数敏感,提出也可以通过管身高分辨像出现水纹状条纹直接判别r-BN堆垛.
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