Preparation and characterization of high hard and high tough ultrafine WC ceramics containing hybrid graphene and SiC nanowire

Abstract

The aggregation of low-dimensional nanofillers in the host ceramic matrix significantly discounted their reinforcing efficiency. Herein, employing two-dimensional graphene (G) and one-dimensional SiC nanowire (SiC_nw), WC-G-SiC_nw ceramic composites were prepared through spark plasma sintering. The effects of sintering temperature, soaking time and pressure on the mechanical properties of the WC-based composites were reported. The influence of graphene and SiC_nw on the densification, microstructure and mechanical properties of the ceramic composites were investigated. The experimental results demonstrated that excellent mechanical properties were achieved for WC-0.15 wt.% G–0.45 wt.% SiC_nw prepared through sintering at 1900 °C for 15 min holding time and 60 MPa pressure, with a hardness of 25.6 GPa, a flexural strength of 1499 MPa and a fracture toughness of 11.6 MPa·m^1/2. The toughening mechanisms were mainly the combination of G and SiC_nw induced crack deflection, bridging and pullout. This study provided a simple toughening method in developing high-performance ceramic composites.

Keywords

WC ceramics / graphene / SiC nanowire / mechanical properties / toughening

References

[1] García J, Collado Ciprés V, Blomqvist A, et al.. Cemented carbide microstructures: A review [J]. International Journal of Refractory Metals and Hard Materials, 2019, 80: 40-68,

[2] Raihanuzzaman R M, Xie Z-H, Hong S J, et al.. Powder refinement, consolidation and mechanical properties of cemented carbides—An overview [J]. Powder Technology, 2014, 261: 1-13,

[3] Upadhyaya G S. Materials science of cemented carbides—An overview [J]. Materials & Design, 2001, 22(6): 483-489,

[4] Dong H-F, Li B-Z, Liu B-B, et al.. Extraordinary high-temperature mechanical properties in binder-free nanopolycrystalline WC ceramic [J]. Journal of Materials Science & Technology, 2022, 97: 169-175,

[5] Tsai K M, Hsieh C Y, Lu H H. Sintering of binderless tungsten carbide [J]. Ceramics International, 2010, 36(2): 689-692,

[6] Mukhopadhyay A, Basu B. Recent developments on WC-based bulk composites [J]. Journal of Materials Science, 2011, 46(3): 571-589,

[7] Sun N-J, Cheng Y, Zhu T-B, et al.. Tribological properties and wear resistance mechanism of WC-ZrO₂-Al₂O₃ ceramics [J]. Journal of Alloys and Compounds, 2023, 960: 171069,

[8] Sun N-J, Cheng Y, Zhu T-B, et al.. Mechanical properties of binderless tungsten carbide enhanced via the addition of ZrO₂-20 wt% Al₂O₃ composite powder and graphene nanosheets [J]. Ceramics International, 2023, 49(14): 22853-22860,

[9] Sun N-J, Zhu T-B, Liang X, et al.. Improved comprehensive mechanical properties of oscillatory pressure sintered WC-ZrO₂-Al₂O₃ ceramics with VC/Cr₃C₂ addition [J]. Ceramics International, 2023, 49(7): 11494-11503,

[10] Cheng Y, Zhu T-B, Sun N-J, et al.. Synergistic strengthening and toughening of oscillatory pressure sintered WC-ZrO₂-Al₂O₃ ceramics [J]. Journal of Alloys and Compounds, 2022, 922: 166133,

[11] Kim H C, Kim D K, Woo K D, et al.. Consolidation of binderless WC-TiC by high frequency induction heating sintering [J]. International Journal of Refractory Metals and Hard Materials, 2008, 26(1): 48-54,

[12] Zheng D-H, Li X-Q, Ai X, et al.. Bulk WC-Al₂O₃ composites prepared by spark plasma sintering [J]. International Journal of Refractory Metals and Hard Materials, 2012, 30(1): 51-56,

[13] Zheng D-H, Li X-Q, Li Y-Y, et al.. ZrO₂ (3Y) toughened WC composites prepared by spark plasma sintering [J]. Journal of Alloys and Compounds, 2013, 572: 62-67,

[14] Huang B, Chen L D, Bai S Q. Bulk ultrafine binderless WC prepared by spark plasma sintering [J]. Scripta Materialia, 2006, 54(3): 441-445,

[15] Huang S G, Vanmeensel K, van der Biest O, et al.. Binderless WC and WC-VC materials obtained by pulsed electric current sintering [J]. International Journal of Refractory Metals and Hard Materials, 2008, 26(1): 41-47,

[16] Oh S J, Kim B S, Shon I J. Mechanical properties and rapid consolidation of nanostructured WC and WC-Al₂O₃ composites by high-frequency induction-heated sintering [J]. International Journal of Refractory Metals and Hard Materials, 2016, 58: 189-195,

[17] Ma D-J, Kou Z-L, Liu Y-J, et al.. Sub-micron binderless tungsten carbide sintering behavior under high pressure and high temperature [J]. International Journal of Refractory Metals and Hard Materials, 2016, 54: 427-432,

[18] Cheng Y, Zhu T-B, Li Y-W, et al.. Microstructure and mechanical properties of oscillatory pressure sintered WC ceramics with different carbon sources [J]. Ceramics International, 2021, 47(8): 11793-11798,

[19] Cheng Y, Zhu T-B, Zhang J, et al.. Oscillatory pressure sintering of binderless tungsten carbide [J]. Ceramics International, 2020, 46(16): 25603-25607,

[20] Li Z-L, Zhao J, Sun J-L, et al.. Reinforcing effect of graphene on the mechanical properties of Al₂O₃/TiC ceramics [J]. International Journal of Minerals, Metallurgy, and Materials, 2017, 24(12): 1403-1411,

[21] Grigoriev S, Peretyagin P, Smirnov A, et al.. Effect of graphene addition on the mechanical and electrical properties of Al₂O₃-SiC_w ceramics [J]. Journal of the European Ceramic Society, 2017, 37(6): 2473-2479,

[22] Zhang X-X, Zhu S-G, Ding H, et al.. Fabrication and properties of hot-pressing sintered WC-Al₂O₃ composites reinforced by graphene platelets [J]. International Journal of Refractory Metals and Hard Materials, 2019, 82: 81-90,

[23] Zhang X-X, Zhu S-G, Ding H, et al.. Fabrication and properties of hot-pressing sintered WC-Al₂O₃ composites reinforced by graphene platelets [J]. International Journal of Refractory Metals and Hard Materials, 2019, 82: 81-90,

[24] Vajdi M, Sadegh Moghanlou F, Nekahi S, et al.. Role of graphene nano-platelets on thermal conductivity and microstructure of TiB₂-SiC ceramics [J]. Ceramics International, 2020, 46(13): 21775-21783,

[25] Kovalčíková A, Tatarko P, Sedlák R, et al.. Mechanical and tribological properties of TiB₂-SiC and TiB₂-SiC-GNPs ceramic composites [J]. Journal of the European Ceramic Society, 2020, 40(14): 4860-4871,

[26] An Y-M, Xu X-H, Gui K-X. Effect of SiC whiskers and graphene nanosheets on the mechanical properties of ZrB₂-SiC_w-Graphene ceramic composites [J]. Ceramics International, 2016, 42(12): 14066-14070,

[27] Shahedi Asl M, Ghassemi Kakroudi M. Characterization of hot-pressed graphene reinforced ZrB₂-SiC composite [J]. Materials Science and Engineering A, 2015, 625: 385-392,

[28] Walker L S, Marotto V R, Rafiee M A, et al.. Toughening in graphene ceramic composites [J]. ACS Nano, 2011, 5(4): 3182-3190,

[29] Kvetková L, Duszová A, Hvizdoš P, et al.. Fracture toughness and toughening mechanisms in graphene platelet reinforced Si₃N₄ composites [J]. Scripta Materialia, 2012, 66(10): 793-796,

[30] Nieto A, Bisht A, Lahiri D, et al.. Graphene reinforced metal and ceramic matrix composites: A review [J]. International Materials Reviews, 2017, 62(5): 241-302,

[31] Porwal H, Grasso S, Reece M J. Review of grapheneceramic matrix composites [J]. Advances in Applied Ceramics, 2013, 112(8): 443-454,

[32] Wang C, Xia L, Zhong B, et al.. Fabrication and mechanical properties of carbon fibers/lithium aluminosilicate ceramic matrix composites reinforced by in situ growth SiC nanowires [J]. Journal of the European Ceramic Society, 2019, 39(15): 4625-4633,

[33] Han T, Luo R-Y, Cui G-Y, et al.. Effect of SiC nanowires on the high-temperature microwave absorption properties of SiC_f/SiC composites [J]. Journal of the European Ceramic Society, 2019, 39(5): 1743-1756,

[34] Darihaki F, Balak Z, Eatemadi R. Effect of nano and micro SiC particles on the microstructure and fracture toughness of ZrB₂-SiC nanocomposite produced by SPS method [J]. Materials Research Express, 2019, 6(9): 095608,

[35] Balak Z, Zakeri M. Application of Taguchi L₃₂ orthogonal design to optimize flexural strength of ZrB₂-based composites prepared by spark plasma sintering [J]. International Journal of Refractory Metals and Hard Materials, 2016, 55: 58-67,

[36] Vaziri P, Balak Z. Improved mechanical properties of ZrB₂-30 vol% SiC using zirconium carbide additive [J]. International Journal of Refractory Metals and Hard Materials, 2019, 83: 104958,

[37] Balak Z, Zakeri M, Rahimipur M R, et al.. Effect of open porosity on flexural strength and hardness of ZrB₂-based composites [J]. Ceramics International, 2015, 41(7): 8312-8319,

[38] Akhlaghi N, Balak Z, Najafi Birgani E. Milling time and sintering parameters optimization to fabricate ZrB₂-30 vol% SiC composite with highest thermal shock resistance [J]. Materials Research Express, 2019, 6(5): 055606,

[39] Yazdani B, Porwal H, Xia Y-D, et al.. Role of synthesis method on microstructure and mechanical properties of graphene/carbon nanotube toughened Al₂O₃ nanocomposites [J]. Ceramics International, 2015, 41(8): 9813-9822,

[40] Chaim R, Levin M, Shlayer A, et al.. Sintering and densification of nanocrystalline ceramic oxide powders: A review [J]. Advances in Applied Ceramics, 2008, 107(3): 159-169,

[41] Cheng L-X, Xie Z-P, Liu G-W, et al.. Densification and mechanical properties of TiC by SPS-effects of holding time, sintering temperature and pressure condition [J]. Journal of the European Ceramic Society, 2012, 32(12): 3399-3406,

[42] Kim H C, Shon I J, Yoon J K, et al.. Comparison of sintering behavior and mechanical properties between WC-8Co and WC - 8Ni hard materials produced by high-frequency induction heating sintering [J]. Metals and Materials International, 2006, 12(2): 141-146,

[43] Huang S-G, Van Der Biest O, Vleugels J. Pulsed electric current sintered Fe₃Al bonded WC composites [J]. International Journal of Refractory Metals and Hard Materials, 2009, 27(6): 1019-1023,

[44] Kwak B W, Song J, Kim B S, et al.. Mechanical properties and rapid sintering of nanostructured WC and WC - TiAl₃ hard materials by the pulsed current activated heating [J]. International Journal of Refractory Metals and Hard Materials, 2016, 54: 244-250,

[45] Yadav S, Zhang Q-F, Behera A, et al.. Role of binder phase on the microstructure and mechanical properties of a mechanically alloyed and spark plasma sintered WC-FCC HEA composites [J]. Journal of Alloys and Compounds, 2021, 877: 160265,

[46] Ren X-Y, Peng Z-J, Wang C-B, et al.. Effect of ZrC nano-powder addition on the microstructure and mechanical properties of binderless tungsten carbide fabricated by spark plasma sintering [J]. International Journal of Refractory Metals and Hard Materials, 2015, 48: 398-407,

[47] Cao T, Li X-Q, Li J-M, et al.. Effect of sintering temperature on phase constitution and mechanical properties of WC-1.0 wt% carbon nanotube composites [J]. Ceramics International, 2018, 44(1): 164-169,

[48] Dong W-W, Zhu S-G, Bai T, et al.. Influence of Al₂O₃ whisker concentration on mechanical properties of WC-Al₂O₃ whisker composite [J]. Ceramics International, 2015, 41(10): 13685-13691,