在高温高压条件下(5.6GPa,1400℃),以Fe55 Ni26 Co19合金(KOV)为烧结助剂,采用高压熔渗技术制备了生长型金刚石复合片(PDC)。采用 SEM、XRD、EDS等观察了PDC 的组织形貌、物相成分；Ra-man光谱计算了金刚石的残余应力；测试了金刚石烧结体的耐磨性及耐热性。实验结果表明,KOV均匀渗透金刚石层,与金刚石颗粒形成了致密交错的网状结构,PDC结合界面复合牢固；PDC 物相包括金刚石、WC、CoCx、α-Co、FeNi等；PDC烧结体的磨耗比为2.8×104,热失重温度为800℃,且具有较小的残余压应力,数值为0.08GPa。
Under the conditions of high temperature and high pressure (5.6 GPa,1400℃),the growth-type polycrystalline diamond compact (PDC ) was prepared by high-pressure infiltration technology using Fe55 Ni26 Co19 alloy (KOV)as sintering additive.The SEM,XRD and EDS were used to investigate the morphol-ogy and phase composition of PDC;the Raman spectrum was used to calculate the residual stress of the dia-monds;the wear and heat resistance of the diamond sintered body were tested.The experimental results show that the KOV evenly penetrated the diamond layer to form the dense interleaved reticular structure with the dia-mond particles,and the interface of PDC composite bonded firmly;the PDC phases include:diamond,WC, CoCx,α-Co and FeNi;the abrasion ratio of the PDC sintered body was 2.8×104,and its weight loss temperature was 800℃.The PDC has a smaller residual compressive stress with the value of 0.08GPa.
参考文献
| [1] | Wentorf R H;DeVries R C;Bundy F P .Sintered super-hard materials[J].Science,1980,208:873-880. |
| [2] | D. Belnap;A. Griffo .Homogeneous and structured PCD/WC-Co materials for drilling[J].Diamond and Related Materials,2004(10):1914-1922. |
| [3] | Akaishi M;Yamaoka S;Ueda F et al.Synthesis of polycrystalline diamond compact with magnesium carbon-ate and its physical properties[J].Diamond and Related Materials,1996,5:2-7. |
| [4] | Li Shangjie;Akaishi;Minoru et al.Sintering behaviour of the diamond-super invar alloy system at high tempera-ture and pressure[J].Journal of Materials Science,1990,25:4150-4156. |
| [5] | 贾洪声,马红安,王连儒,商健,贾晓鹏.镍基合金制备PDC复合界面特性研究[J].功能材料,2010(11):1879-1882. |
| [6] | 陈石林,陈启武,陈梨.聚晶金刚石复合体界面组织及界面反应的研究[J].矿冶工程,2003(06):82-85. |
| [7] | 孙毓超;刘一波;王秦生.金刚石工具与金属学[M].北京:中国建材工业出版社,1999 |
| [8] | Zijsling D H.Analysis of temperature distribution and performance of PDC bits under field drilling conditions[A].Houston,1984:16-19. |
| [9] | Glowka D A;Stone C M .Effects of thermal and mechani-cal loading on PDC bit life[J].SPE Drilling Eng,1986,1(03):201-214. |
| [10] | Obraztsov A N;Timofeyev M A;Guseva M B et al.Comparative study of microcrystalline diamond[J].Dia-mond Relat Mater,1995,4:968-971. |
| [11] | Bundy F P;Bovenkerk H P;Strong H M et al.Dia-mond-graphite equilibrium line from growth and graphi-tization of diamond[J].Journal of Chemical Physics,1961,35:383-391. |
| [12] | Prawer S;Nemanich R J .Raman spectroscopy of dia-mond and doped diamond[J].Philosophical Transactions of the Royal Society of London Series A:Mathematical and Physical Sciences,2004,362:2537-2565. |
| [13] | Hongsheng Jia;Hongan Ma;Xiaopeng Jia .Research on polycrystalline diamond compact (PDC) with low residual stress prepared using nickel-based additive[J].International Journal of Refractory Metals & Hard Materials,2011(1):64-67. |
| [14] | JIA HongSheng,MA HongAn,GUO Wei,JIA XiaoPeng.HPHT preparation and Micro-Raman characterization of polycrystalline diamond compact with low residual stress[J].中国科学物理学 力学 天文学（英文版）,2010(08):1445-1448. |
| [15] | Monika Wieligor;T.W. Zerda .Surface stress distribution in diamond crystals in diamond-silicon carbide composites[J].Diamond and Related Materials,2008(1):84-89. |
| [16] | Lin T P;Hood M;Cooper G A .Residual stresses in polycrystalline diamond compacts[J].Journal of the American Ceramic Society,1994,77(06):1562-1568. |
| [17] | Vohra Y K;Catledge S A;Ladi R et al.Micro-Raman stress investigations and X-ray diffraction analysis of polycrystalline diamond (PCD)tools[J].Diamond Re-lat Mater,1996,5:1159-1165. |
| [18] | 赵大钢.关于PDC磨耗比的检测[J].金刚石与磨料磨具工程,2000(04):13-14. |
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