材料期刊网

Influence of Thermal Exposure on Mechanical Properties of C/Al Composite

GUO Shuqi SUI Quanwu GUO Wenxu TANG Fengjun Institute of Metal Research , Academia Sinica , Shenyang , 110015 , China.

材料科学技术（英文）

In this paper were studied the microstructure and properties of the non-barrier coating compo- sites fabricated by a new technology.The bonding between C and A1 in the composites is quite well, and the composites have excellent properties.The ion probe and X-ray analyses indicate that there is Al_4C_3 phase in the composites and its amount in the composites increases when the composites are exposed.In the case of exposure the strength of the composites is reduced because of increasing amount of Al_4C_3.

关键词: C/Al composite , null , null , null

Effects of Joining Conditions on Microstructure and Mechanical Properties of C_f/Al Composites and TiAl Alloy Combustion Synthesis Joints

Guang-Jie Feng , Zhuo-Ran Li , Rui-Hua Liu , Shi-Cheng Feng

金属学报(英文版) doi:10.1007/s40195-015-0209-9

关键词: C/Al composite , TiAl alloy , Combustion synthesis , Interface microstructure , Formation mechanism

液态金属浸渗动力学模型及其应用

夏振海 , 毛志英 , 周尧和

金属学报

从流体动力学出发导出了液态金属浸渗纤维预制件的动力学模型.实验研究了碳纤维增强铝基复合材料的浸渗过程,测定了浸渗速度和浸渗系数.结果表明:实验数据与浸渗模型吻合;还发现了两种不同的浸渗方式,均匀浸渗和非均匀浸渗;并提出一种复合材料制造新工艺.用此工艺在不润湿的情况下,在低压力下制出高质量的C/Al复合材料。

关键词: 液态金属浸渗 , infiltration model , C/Al composite , null

MODEL FOR INFILTRATION KINETICS OF LIQUID METALS AND ITS APPLICATION

XIA Zhenhai Hebei Institute of Technology , Tianjin , ChinaMAO Zhiying ZHOU Yaohe Northwestern Polytechnical University , Xi'an , China Doctor , Faculty of Foundry , Department of Mechanical Engineering No.2 , Hebei Institute of Technology , Tianjin 300132 , China

金属学报(英文版)

On the basis of fluid kinetics,a model for infiltration kinetics of liquid metals into fibre pre- fabricated composite has been proposed.The infiltration processing,together with the measurements of infiltrating velocity and permeability,for the C fibre-reinforced Al matrix composites have been studied.The model proposed seems to be in good agreement with the ex- perimental results.Two different infiltration modes,uniform and non-uniform,were found and a new technique was suggested.Thus,the quality composites of C fibre-reinforced Al may be made under low pressure regardless of non-wettability of liquid metal to the fibres.

关键词: liquid metal , null , null