MECHANICAL PROPERTIES AND FRACTURE BEHAVIOR OF ELECTROLESS NI-PLATED SHORT CARBON FIBER REINFORCED GEOPOLYMER MATRIX COMPOSITES

摘要：

Electroless Ni-plated short carbon fiber reinforced geopolymer matrix composites with various carbon fiber/matrix interface coating thicknesses have been successfully fabricated. The influences of coating thickness on the mechanical properties and fracture behavior have been investigated by three-point bending test and scanning electron microscopy. The flexural strength and Youngs modulus of Ni-plated short carbon fiber reinforced geopolymer composites exhibit maximums as the average fiber coating thickness increases, but the work of fracture has a sharp decrease, and the fracture manner changes from ductile to brittle. This is mainly attributed to the fact that the carbon fibers favor breakage rather than pulling-out during loading because of the higher interface bonding strength of fiber/matrix, and pliability of the carbon fibers decreases with the increase of the coating thickness.

关键词： Geopolymer short carbon fiber electroless Ni plating mechanical properties fracture behavior

作者: TIESONG LIN DECHANG JIA

作者单位: Institute for Advanced Ceramics, Harbin Institute of Technology, Harbin, 150001, Peoples Republic of China

会议类型: 国际会议

会议名称: 第五届先进材料与加工国际会议(Fifth International Conference on Advanced Materials and Processing ICAMP-5)

会议地点: 哈尔滨

会议语种:英文

页码: 1371-1376

在线出版日期: 2008-09-03（万方平台首次上网日期，不代表论文的发表时间）