Effects of graphene addition on mechanical properties of polycrystalline diamond compact

Chen，Zhaoran1; Ma，Dejiang2; Wang，Shanmin2; Dai，Wenhao1; Li，Siqi1; Zhu，Yiqing3; Liu，Baochang1,4,5

2020-06-01

10.1016/j.ceramint.2020.01.150

CERAMICS INTERNATIONAL   影响因子和分区

0272-8842

1873-3956

Polycrystalline diamond compact (PDC) cutters are used widely for mining and drilling in soft to medium hard rock formations. During drilling in very hard and strong rock formations, the rapid wear of the polycrystalline diamond layer results in a low service life of drilling bits. To improve the performance of PDC cutters, we adopted a high-temperature, high-pressure (HTHP) sintering method (5.5–6.0 GPa and 1350–1500 °C) in the current research by adding a certain amount of graphene to raw materials, and we successfully prepared a new type of high-performance diamond composite PDC-G (graphene was added to PDC). We investigated the microstructure, residual stress, hardness, wear resistance, thermal conductivity, and electrical conductivity of the as-synthesized PDC-G. Compared with PDC without graphene, the hardness and wear resistance of PDC-G with 0.1 wt% graphene addition were enhanced by 75% and 33%, respectively. Moreover, the electrical conductivity of PDC prepared by graphene strengthening was improved 42-fold. The strengthening mechanism of PDC-G mainly occurred as a result of the lubricating effect of graphene between diamond particles; hence, a more dense and uniform structure was formed in the polycrystalline diamond layer after HTHP sintering.

Electrical conductivity Graphene Polycrystalline diamond Thermal conductivity Wear resistance

SCI ; EI

英语

其他

National Natural Science Foundation of China[41572357] ; Science and Technology project of Jilin Province Education Department[JJKH20180087KJ]

Materials Science

Materials Science, Ceramics

WOS:000528481900155

ELSEVIER SCI LTD

20200408076758

Infill drilling ; High pressure engineering ; Sintering ; Electric conductivity ; Wear resistance ; Thermal conductivity ; Diamond drilling ; Hardness ; Wear of materials

Oil Field Production Operations:511.1 ; Thermodynamics:641.1 ; Electricity: Basic Concepts and Phenomena:701.1 ; Nanotechnology:761 ; Chemical Products Generally:804 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Materials Science:951

MATERIALS SCIENCE

2-s2.0-85078087654

Scopus

1.College of Construction Engineering,Jilin University,Changchun,China
2.Southern University of Science and Technology,Shenzhen,China
3.Shanghai Institute of Geological Engineering Exploration,Shanghai,China
4.Key Laboratory of Drilling and Exploitation Technology in Complex Conditions of Ministry of Natural Resources,Changchun,130026,China
5.State Key Laboratory of Superhard Materials,Changchun,130021,China

Chen，Zhaoran,Ma，Dejiang,Wang，Shanmin,et al. Effects of graphene addition on mechanical properties of polycrystalline diamond compact[J]. CERAMICS INTERNATIONAL,2020,46(8):11255-11260.

Chen，Zhaoran.,Ma，Dejiang.,Wang，Shanmin.,Dai，Wenhao.,Li，Siqi.,...&Liu，Baochang.(2020).Effects of graphene addition on mechanical properties of polycrystalline diamond compact.CERAMICS INTERNATIONAL,46(8),11255-11260.

Chen，Zhaoran,et al."Effects of graphene addition on mechanical properties of polycrystalline diamond compact".CERAMICS INTERNATIONAL 46.8(2020):11255-11260.