期刊论文

Interface Structure and Stress Analysis of Carbon Fiber Reinforced Laminated Woodceramics

Sun De-Lin

中文

无机材料学报

1000-324X

2016

31

9

969-975

10.15541/jim20160049

国家自然科学基金

本校为第一且通讯机构

为了研究纤维增强木材陶瓷复合材料的界面结构与受力情况,利用液化木材、炭粉和碳纤维制备层状结构木材陶瓷。采用扫描电镜和高分辨率透射电镜对其基本结构与界面进行观测,并通过显微拉曼光谱检测拉伸试件G'峰的位移来判断界面的结合情况。同时,基于双线性软化本构模型,采用Abaqus软件对界面层在应力传递中的作用与方式进行了数值分析。扫描电镜与透射电镜的观测表明: 碳纤维增强木材陶瓷具有清晰的层状结构,且无定形碳与玻璃碳之间存在强界面结合。拉曼光谱的测试发现: 加压烧结试件拉伸后的G'峰向低波数的位移更大,证明加压烧结能够改善玻璃碳与碳纤维之间界面的结合强度。数值分析显示: 在受...

To study the interface structure and loading conditions of fiber reinforced woodceramics composite, a laminated woodceramics were prepared by using liquification wood, carbon power and carbon fiber. Scanning electron microscope (SEM) and a high-revolution transmission electron microscope (HRTEM) were employed to observe the basic structure and interface, and a micro-raman spectrometer (MRS) was used to detect the G' band shifts of stretch sample to judge the situation of interface bond. Meanwhile, the function and way of interface layer in the process of stress transfer were numerical analyzed...