地质装备2024，Vol.25Issue(2)：1-6,6.
添加二硼化铪提高聚晶金刚石复合片耐热性能的研究
Research on improving the thermal resistance of polycrystalline diamond compact by adding HfB2
摘要
Abstract
Polycrystalline diamond compact(PDC)is extensively used in geological drilling bits and oil & gas well drilling bits,and the improvement of its thermal resistance is very crucial for increasing its working performance of PDC bits.This study aimed to investigate the effect of adding hafnium diboride(HfB2)on the thermal resistance of PDCs and analyze the phase and micro-structure of PDC prepared under high temperature and high pressure by X-ray diffraction and scanning electron microscopy.The research results showed that the proportion of HfC phase increased gradually with the addition of HfB2.Thermal expansion exper-iments demonstrated that the thermal resistance of PDC samples with 0.1 wt.％HfB2 was increased significantly;however the thermal resistance of PDC did not further increase when adding more than 0.1 wt.％HfB2,but the overall thermal expansion value of PDC was reduced.Therefore,the optimal addition amount of H fB2 was identified to be 0.1 wt.％.关键词
聚晶金刚石复合片/HfB2/耐热性能/热膨胀系数Key words
polycrystalline diamond compact/HfB2/thermal resistance/thermal expansion coefficient分类
天文与地球科学引用本文复制引用
赵闯,刘宝昌..添加二硼化铪提高聚晶金刚石复合片耐热性能的研究[J].地质装备,2024,25(2):1-6,6.基金项目
国家重点研发计划项目(编号:2022YFB3706600) （编号:2022YFB3706600）
吉林省科技发展计划项目(编号:YDZJ202301ZYTS532) （编号:YDZJ202301ZYTS532）
