标题：Preparation and Mechanical Properties of Al(2)O(3)/TiCN Sandwich Nanocomposite Ceramic Tool Materials
作者：Li, Y. Z.; Zhao, J.
作者机构：[Li, Y. Z.; Zhao, J.] Shandong Univ, Sch Mech Engn, MOE, Key Lab High Efficiency & Clean Mech Manufacture, Jinan 250061, Peoples R China.
会议名称：International Conference on Manufacturing Science and Engineering (ICMSE 2009)
会议日期：DEC 26-28, 2009
来源：MANUFACTURING SCIENCE AND ENGINEERING, PTS 1-5
关键词：Sandwich nanocomposite ceramic; TiCN; Tool material; Mechanical; properties
摘要：A model for designing sandwich nanocomposite ceramic tool materials with symmetrical distribution was presented. By adding nano-sized Al(2)O(3) particles into the submicro-sized Al(2)O(3) and TiCN, Al(2)O(3)/TiCN sandwich nanocomposite ceramic tool materials were fabricated by means of powder-laminating and hot-pressing technique. The experimental results showed that optimal mechanical properties were achieved for the composite with the addition of 35 vol.% TiCN particles in the middle layer and 45 vol.% TiCN particles in the outer layers, layer thickness ratio is 0.3, with the flexural strength reaching respectively 900MPa, fracture toughness and Vicker's hardness in the surface layers being 6.5MPa.m(1/2) and 19.2GPa.