【作者】 王双华； 贺跃进； 赵程； 张恒；

【Author】 WANG Shuang-hua HE Yue-jin ZHAO Cheng ZHANG Heng (Institute of Composite Design and Application,Zhengzhou University,Zhengzhou 450052,China)

【机构】 郑州大学复合材料设计与应用研究所；

【摘要】 在采用烧结法制备出机械功能微晶玻璃的基础上结合维氏硬度计和扫描电子显微镜,研究了热处理制度对硬度的影响以及硬度对其可加工性能的影响．研究发现：当晶化温度为900℃,保温时间从1～2h 时, 硬度增长缓慢；保温时间从2～3h 时,硬度增长迅速．当晶化温度为1000℃,保温时间从1～2h 时,硬度增长缓慢；保温时间从2～3h 时,硬度却迅速降低．在一定范围内,材料的可加工性能随着硬度的增加而提高, 反之则随着硬度的继续增大而降低．更多还原

【Abstract】 Based on preparing the machinable micro glass-ceramic by the sintering methods,the hardness influenced by the heat treating and the machinable property influenced from the hardness has been investigated with the help of vickers hardness instrument and scanning electric microscope in this paper.The results show that the hardness increases slowly when the heat holding time from 1h to 2h and it increases rapid when the holding time from 2h to 3h at 900℃.The results also shows that the hardness increases slowly when the heat holding time from 1h to 2h and it decreases rapid when the holding time from 2h to 3h at 1000℃.Generally,the machinable property increases to a certain value with the developing hardness then decreases while the hardness still increasing.更多还原