Mechanical Properties of AlMgB14-xTiB2 Prepared by Field Activated and Pressure Assisted Synthesis

摘要：

　　In this paper,Mechanical alloying (MA) and field activated and pressure assisted synthesis (FAPAS) were used for preparing the ultra-hard,super-abrasive AlMgB14-xTiB2 composite ceramic.The samples were fabricated at 1500℃ under a pressure of 60 MPa.The microstructures and compositions of samples were observed and determined by scanning electron microscopy (SEM),energy dispersive X-ray analysis (EDX),X-ray diffraction (XRD).It was indicated that addition of TiB2 was effective for increasing both quantities.A maximum Vichers hardness of 38.5GPa and a fracture toughness of 3.85MPam? of AlMgB14 reinforced with 70 wt.% of TiB2 were achieved.Abrasion wear tests showed that adding TiB2 would improve the wearability obviously.

关键词： FAPAS:AlMgB14-xTiB2:Ultra-hard boride:Mechanical properties

作者: Yang Miao Wen Liu Lei Zhuang Huiling Cheng Qingsen Meng

作者单位: College of Materials Science and Engineering, Taiyuan University of Technology,Taiyuan 030024, China Institute of Chemical and Biological Technology, Taiyuan University of Science and Technology,Taiyua

会议类型: 国际会议

会议名称: the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))

会议地点: 太原

会议语种:英文

页码: 652-656

在线出版日期: 2012-07-13（万方平台首次上网日期，不代表论文的发表时间）