Enhanced oxidation and graphitization resistance of polycrystalline diamond sintered with Ti-coated diamond powders

doi:10.1016/j.jmst.2020.01.031

Abstract

Abstract:

To improve the oxidation and graphitization resistances of the polycrystalline diamond (PCD), Ti coating was deposited on the diamond powders via magnetic sputtering method, which achieved a uniform TiC protection barrier in PCD during the sintering process. The phase compositions, microstructures and thermal stability of Ti-PCD were characterized by X-ray diffraction (XRD), Auger electron spectroscopy (AES), scanning electron microscopy (SEM) and thermal gravimetric-differential scanning calorimetry (TG-DSC). The results demonstrate that the oxidation and graphitization resistances of PCD are strengthened due to the existence of TiC phase, which acts as an effective inhibitor. The as-received inhibitor delays the oxidation and graphitization of PCD, elevating their initial temperature by ～50 °C and ～100 °C, respectively. During the annealing treatment of Ti-PCD, the priory oxidation of TiC, which produces TiO₂ as an oxygen barrier, postpones the diamond oxide. Moreover, the TiC barrier also protects diamond grains from direct contact with cobalt, thus a lower cobalt-catalytic graphitization, and yields to an improved graphitization resistance of PCD. The enhanced oxidation and graphitization resistances of PCD are of significant importance for practical applications to elevated temperatures.

Key words: Polycrystalline diamond, Ti-coated diamond powder, TiC barrier, Oxidation resistance, Graphitization resistance

Xiaohua Sha, Wen Yue, Haichao Zhang, Wenbo Qin, Dingshun She, Chengbiao Wang. Enhanced oxidation and graphitization resistance of polycrystalline diamond sintered with Ti-coated diamond powders[J]. J. Mater. Sci. Technol., 2020, 43: 64-73.

Figures/Tables 12

Fig. 1. Typical characteristics of the Ti-coated diamond powders: (a) SEM image of the Ti-coated diamond powders; (b, c) the corresponding EDS maps marked in the yellow detecting position of (a); (d) the XRD pattern of the Ti-coated diamond powders; (e) AES elemental depth profile of the Ti-coated diamond powders (sputtering rate: 15 nm/min); (f) particle size distribution of the Ti-coated diamond powders (D50 = 23.75 μm).

Fig. 2. Characteristics of the Ti-PCD: (a) AFM photography of the Ti-PCD surface; (b) SEM image of the Ti-PCD; (c-e) the corresponding EDS maps of (b); (f) EDS surface chemical composition marked in the yellow detecting position of (b) and (g) XRD pattern of the Ti-PCD.

Fig. 3. DSC and TG curves of (a) the uncoated diamond powders, (b) the Ti-coated diamond powders, (c) the P-PCD and (d) the Ti-PCD heated under flowing air from 20 °C to 1200 °C.

Fig. 4. XRD patterns of the Ti-PCD annealed in air: (a) RT, 700 °C and 750 °C; (b) 800 °C, 850 °C and 900 °C.

Fig. 5. Raman spectra of the Ti-PCD annealed at various temperatures under air ambient.

Fig. 6. Typical SEM micrographs and corresponding EDS maps of the annealed Ti-PCD surfaces in air: (a) RT; (b) 700 °C; (c) 750 °C; (d) 800 °C; (e) 850 °C; (f) 900 °C.

Fig. 7. Enlarged SEM image of the Ti-PCD surface annealed at 750 °C.

Fig. 8. Enlarged SEM image of the Ti-PCD surface annealed at 800 °C.

Fig. 9. SEM image and EDS of the Ti-PCD surface annealed at 850 °C in air: (a) the enlarged SEM image; (b, c) the EDS surface chemical composition marked in the yellow detecting position of (a).

Fig. 10. EDS line scans of the cross-sectional surface of Ti-PCD.

Fig. 11. Schematic diagram of the PCD structures: (a) P-PCD; (b) Ti-PCD.

Fig. 12. Wear rates of the PCD discs annealed at different temperatures. The black scatters reveal the wear rates of Ti-PCD annealed at different temperatures, and the red scatters show those of the P-PCD [18].

References

[1]	R.H. Wentorf, R.C. Devries, F.P. Bundy, Science 208 (1980) 873-880.
[2]	R.H. Wentorf, J. Phys. Chem. 12(1971) 1833-1837.
[3]	S. Dub, P. Lytvyn, V. Strelchuk, A. Nikolenko, Y. Stubrov, I. Petrusha, T. Taniguchi, S. Ivakhnenko, Crystals 7 (2017) 369.
[4]	Z.S. Zhao, B. Xu, Y.J. Tian, Annu. Rev. Mater. Res. 46(2016) 383-406.
[5]	W.B. Qin, Y.Y. Liu, W. Yue, C.B. Wang, G.Z. Ma, H.D. Wang, Tribol. Lett. 67(2019) 1-9.
[6]	H.P. Bovenkerk, F.P. Bundy, H.T. Hall, H.M. Strong, R.H. Wentorf, Nature 184 (1959) 1094-1098.
[7]	X.L. Ma, L.P. Shi, X.D. He, L. Li, G.J. Cao, C.Y. Hou, J.C. Li, L. Chang, L. Yang, Y.S. Zhong, Carbon 133 (2018) 69-76.
[8]	B. Carlo, S. Osswald, Carbon 132 (2018) 616-622.
[9]	S.A. Linnik, A.V. Gaydaychuk, V.V. Okhotnikov, Surf. Coat. Technol. 334(2018) 227-232.
[10]	Y.G. Gogotsi, A. Kailer, K.G. Nickel, Nature 401 (1999) 663-664.
[11]	C.L. Liu, Z.L. Kou, D.W. He, Y. Chen, Int. J. Refract. Met. Hard Mater. 31(2012) 187-191.
[12]	X.H. Sha, W. Yue, W.B. Qin, C.B. Wang, Int. J. Refract. Met. Hard Mater. 80(2019) 85-96.
[13]	Y.Y. Liu, W. Yue, W.B. Qin, C.B. Wang, Carbon 124 (2017) 651-661.
[14]	N.I. Polushin, M.S. Ovchinnikova, M.N. Sorokin, Russ. J. Non-Ferrous Met. 59(2018) 557-562.
[15]	J.T. Gu, K. Huang, Diam. Relat. Mater. 66(2016) 98-101.
[16]	A.S. Osipov, P. Klimczyk, S. Cygan, Y.A. Melniychuk, I.A. Petrusha, L. Jaworska, A.I. Bykov, J. Eur. Ceram. Soc. 37(2017) 2553-2558.
[17]	J. Qian, C. Pantea, J. Huang, T.W. Zerda, Y. Zhao, Carbon 42 (2004) 2691-2697.
[18]	J.S. Li, W. Yue, W.B. Qin, C.B. Wang, Carbon 116 (2017) 103-112.
[19]	W.S. Yang, G.Q. Chen, P.P. Wang, J. Qiao, F.J. Hu, S.F. Liu, Q. Zhang, M. Hussain, R.H. Dong, G.H. Wu, J. Alloys Compd. 726(2017) 623-631.
[20]	V.M. Chagas, M.P. Pec?anha, R.S. Guimar?es, A.A.A. Santos, M.G. Azevedo, M. Filgueira, J.Alloys Compd. 791(2019) 438-444.
[21]	G.H. Meng, B.Y. Zhang, H. Liu, G.J. Yang, T. Xu, C.X. Li, C.J. Li, Surf. Coat. Technol. 347(2018) 54-65.
[22]	S.Q. Liu, L. Han, Y.T. Zou, P.W. Zhu, B.C. Liu, J. Mater. Sci. Technol. 33(2017) 1386-1391.
[23]	Y.H. Sun, Q.N. Meng, M. Qian, B.C. Liu, K. Gao, Y.L. Ma, M. Wen, W.T. Zheng, Sci. Rep. 6(2016) 20198.
[24]	J.H. Wu, H.L. Zhang, Y. Zhang, J.W. Li, Mater. Sci. Eng. A 565 (2013) 33-37.
[25]	Z.S. Zuo, B.N. Hu, H. Chen, Q.Z. Dong, G. Yu, J. Mater. Sci. Technol. 33(2017) 1409-1415.
[26]	D.Z. Meng, G. Yan, W. Yue, F. Lin, C.B. Wang, J. Eur. Ceram. Soc. 38(2018) 4338-4345.
[27]	G.R. Li, L.S. Wang, G.J. Yang,Mater. Des. 167(2019), 107647.
[28]	Q.Q. Tian, N. Huang, B. Yang, H. Zhuang, C. Wang, Z.F. Zhai, J.H. Li, X.Y. Jia, L.S. Liu, X. Jiang, J. Mater. Sci. Technol. 10(2017) 33-42.
[29]	J.S. Li, W. Yue, C.B. Wang, Int. J. Refract. Met. Hard Mater. 54(2016) 138-147.
[30]	L. Jaworska, M. Szutkowska, P. Klimczyk, M. Sitarz, M. Bucko, R. Pawel, F. Pawel, J. Lojewska, Int. J. Refract. Met. Hard Mater. 45(2014) 109-116.
[31]	B. Yang, J.K. Yu, C. Chen, Trans. Nonferrous Met. Soc. China 19 (2009) 1167-1173.
[32]	D. Berman, A. Erdemir, A.V. Sumant, Mater. Today 17 (2014) 31-42.
[33]	C. Tomas, I. Suarez-Martinez, N.A. Marks, Carbon 109 (2016) 681-693.
[34]	D. Berman, A. Erdemir, A.V. Sumant, Carbon 59 (2013) 167-175.
[35]	Z.C. Li, H.S. Jia, H.A. Ma, W. Guo, X.B. Liu, G.F. Huang, Mech. Astron. 55(2012) 639-643.
[36]	J. Kim, S. Kang, J. Alloys Compd. 528(2012) 20-27.
[37]	S.M. Hong, M. Akaishi, H. Kanda, T. Osawa, S. Yamaoka, J. Mater. Sci. 2311(1988) 3821-3826.
[38]	M. Yahiaoui, L. Gerbaud, J.Y. Paris, J. Denape, A. Dourfaye, Wear 298-299(2013) 32-41.
[39]	M. Akhaishi, H. Kanda, Y. Sato, N. Setaka, T. Ohsawa, O. Fukunaga, J. Mater. Sci. 17(1982) 193-198.
[40]	D. Lowe, G. Machin, Metrologia 493 (2012) 189-199.
[41]	R.A. Howe, J.E. Enderby, J. Phys. F: Met. Phys. 31(1973) 12-14.
[42]	T.A. Scott, Adv. Appl. Ceram. 2(2017) 161-176.
[43]	J.Y. Xu, E.M. Mansori, Wear 376-377(2017) 91-106.