标题：Effect of nano-additives on microstructure and mechanical properties of Ti(C,N)-TiB2-WC composite ceramic cutting tool materials
作者：Liu, Yue; Huang, Chuanzhen; Liu, Hanlian; Zou, Bin; Yao, Peng; Xu, Liang
作者机构：[Liu, Yue; Huang, Chuanzhen; Liu, Hanlian; Zou, Bin; Yao, Peng; Xu, Liang] Shandong Univ, CaJET, Key Lab High Efficiency & Clean Mech Manufacture, Min 更多
会议名称：12th Conference on Machining and Advanced Manufacturing Technology
会议日期：JUL 24-27, 2013
来源：ADVANCES IN MACHINING AND MANUFACTURING TECHNOLOGY XII
关键词：Nano-additives; Mechanical properties; Microstructures; Ti(C,N)-TiB2-WC; ceramic
摘要：Ti(C,N)-TiB2-WC composite ceramic cutting tool materials with nano-scale additives Ni and Mo, and micro-scale additives Ni and Mo as sintering aids were sintered respectively at a temperature of 1550 degrees C for holding time of 1 hour in vacuum by a hot-press technique. The effects of nano-scale additives Ni and Mo, and micro-scale additives Ni and Mo on microstructure and mechanical properties of composites were compared and investigated. It is concluded that the wettability of nano-scale Ni and Mo to the composites is better than that of micro-scale Ni and Mo. The nano-scale whiskers were found in the composite ceramic tool materials with nano-scale additives. The addition of nano-scale Ni and Mo instead of micro-scale Ni and Mo could make the flexural strength and fracture toughness of Ti(C, N)-TiB2 WC composites have a promotion, but could not make the hardness of the composites increase in this study.