烧结工艺参数对Al2O3／SiC陶瓷刀具材料微观结构及力学性能的影响  

Effect of Fabrication Parameters on Mechanical Properties and Microstructure of Al_2O_3/SiC Ceramic Tool Materials

作　　者：方斌[1] 黄传真[2] 许崇海[1] 

机构地区：[1]山东轻工业学院机械工程学院,济南250353 [2]山东大学机械工程学院,先进射流工程技术研究中心,济南250061

出　　处：《人工晶体学报》2008年第6期1374-1378,共5页Journal of Synthetic Crystals

基　　金：济南市科技明星计划项目

摘　　要：烧结工艺参数对陶瓷刀具材料的机械力学性能具有重要影响。利用正交试验法研究了烧结温度、烧结压力和保温时间三个工艺参数对Al2O3/SiC陶瓷刀具材料微观结构及力学性能的影响。用极差分析法对正交试验结果进行了分析。结果表明烧结温度是影响Al2O3/SiC陶瓷刀具材料机械力学性能最重要的因素,其次是烧结压力和保温时间;刀具材料的断口形貌表明烧结工艺参数,尤其是烧结温度对微观组织结构和力学性能具有重要影响。正交试验结果和微观组织结构形貌分析具有很好的一致性。In order to investigate the effect of hot-press fabrication parameters on mechanical properties of Al2O3/SiC ceramic tool materials, the orthogonal experiment method was used. In the experiments, the three influence factors such as the fabrication temperature, pressure and duration time are considered. The experimental results are analyzed by a range analysis of orthogonal experiments. It is shown that the most important factor that affects the mechanical properties is the fabrication temperature and the followed factors are the fabrication pressure and the duration time of fabrication. Scanning electron microscope （SEM） reveals that the hot-press fabrication parameters will significantly affect the microstructure of ceramic tool materials, which can govern the mechanical properties. This has been validated by the orthogonal experiments in the present paper.

关 键 词：陶瓷刀具材料 烧结工艺 正交实验 

分 类 号：TB43[一般工业技术]