Preparation and properties of ultra-fine TiCN matrix cermets by vacuum microwave sintering
来源期刊：Rare Metals2010年第5期
论文作者：ZHANG Hou’ana,YAN Dikeb,and TANG Siwenb a Institute of Material Preparation and Applied Technology,Xiamen University of Technology,Xiamen ,China b College of Electromechanical Engineering,Hunan University of Science and Technology,Xiangtan ,China
文章页码：528 - 532
摘 要：Ultra-fine titanium carbonitride（TiCN） matrix materials with a grain size less than 1 μm were successfully prepared by vacuum microwave sintering.The milling process for raw TiCN particles and the microstructure and properties of cermets produced with a composition of 15wt.%WC-17wt.%（Co+Ni）-9wt.%Mo2C-59wt.%Ti0.7N0.3 and sintered by vacuum microwave were analyzed by scanning electron microscopy（SEM） and X-ray diffraction（XRD）.The results show that a ball-to-powder mass ratio of 8:1 and a milling time of 50 h provided appropriate conditions for the production of ultra-fine TiCN solid solution powders.The use of vacuum microwave sintering produced cermets with much finer grain and black core structures and higher relative density and hardness than those produced by vacuum sintering technology.
ZHANG Hou’ana,YAN Dikeb,and TANG Siwenb a Institute of Material Preparation and Applied Technology,Xiamen University of Technology,Xiamen 361024,China b College of Electromechanical Engineering,Hunan University of Science and Technology,Xiangtan 411201,China
摘 要：Ultra-fine titanium carbonitride（TiCN） matrix materials with a grain size less than 1 μm were successfully prepared by vacuum microwave sintering.The milling process for raw TiCN particles and the microstructure and properties of cermets produced with a composition of 15wt.%WC-17wt.%（Co+Ni）-9wt.%Mo2C-59wt.%Ti0.7N0.3 and sintered by vacuum microwave were analyzed by scanning electron microscopy（SEM） and X-ray diffraction（XRD）.The results show that a ball-to-powder mass ratio of 8:1 and a milling time of 50 h provided appropriate conditions for the production of ultra-fine TiCN solid solution powders.The use of vacuum microwave sintering produced cermets with much finer grain and black core structures and higher relative density and hardness than those produced by vacuum sintering technology.
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