Effects of Zr and chopped C fiber on microstructure and mechanical properties of SiBCN ceramics

Abstract

To further improve the thermal shock resistance and ablation resistance of SiBCN system ceramics targeted much harsh environment, both ultra-high temperature ceramic phases and carbon fibers are expected to be incorporated simultaneously as the reinforcements. However, tough problems like difficulty in densification as well as degradation of C fibers (Cf) due to interfacial reaction usually cannot be avoided. Thus, in this study, Zr as well as chopped Cf with BN coating were introduced into SiBCN ceramics by mechanical alloying and after hot-pressing sintering to prepare C/SiBCNZr composites. The structure and phase component development have been characterized in detail by XRD, SEM, TEM and XPS etc., and mechanical properties, fracture behavior and toughening mechanisms were also investigated. Zr-B and Zr-O bonds are detected besides Si-C, N-B and N-B-C bonds when pre-alloyed ZrB2 amorphous powder was incorporated into SiBCN system by further mechanical-alloying treatment. After hot-pressing, the ultra-high temperature phases of ZrB2 and ZrN were formed as expected besides the original matrix phases of BN(C) and SiC. Excellent mechanical properties can be obtained for SiBCNZr ceramic. The BN coating on carbon fibers successfully avoids the severe fiber degradation and makes it possible for moderating strong interface bonding, which ensuring the debonding, crack deflection, fiber pulling-out and bridging during the fracture. As a result, the C/SiBCNZr composites retain good mechanical properties and fractures in a pseudoplastic fracture manner, showing better potential applications in harsh environments. Optimization of the BN coating on Cf and Zr incorporation by pre-mechanical alloying can be a good route to achieve Cf/SiBCNZr composites with a better balance between thermal shock resistance, ablation resistance and mechanical properties.

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References

  1. 1

    Liang B, Yang Z, Li Y, et al. Ablation behavior and mechanism of SiCf/Cf/SiBCN ceramic composites with improved thermal shock resistance under oxyacetylene combustion flow. Ceramics Int, 2015, 41: 8868–8877

    Article  Google Scholar 

  2. 2

    Miao Y, Yang Z, Rao J, et al. Influence of sol-gel derived ZrB2 additions on microstructure and mechanical properties of SiBCN composites. Ceramics Int, 2017, 43: 4372–4378

    Article  Google Scholar 

  3. 3

    Miao Y, Yang Z, Zhu Q, et al. Thermal ablation behavior of SiBCN-Zr composites prepared by reactive spark plasma sintering. Ceramics Int, 2017, 43: 7978–7983

    Article  Google Scholar 

  4. 4

    Tao X Y, Zhou S X, Xiang Z M, et al. Fabrication of continuous ZrB2 nanofibers derived from boron-containing polymeric precursors. J Alloys Compd, 2017, 697: 318–325

    Article  Google Scholar 

  5. 5

    Xin Y, Huang Q Z, Su Z A, et al. Ablative property and mechanism of C/C-ZrB2-ZrC-SiC composites reinforced by SiC networks under plasma flame. Corrosion Sci, 2016, 107: 9–20

    Article  Google Scholar 

  6. 6

    Li D X, Yang Z H, Jia D C, et al. Preparation, microstructures, mechanical properties and oxidation resistance of SiBCN/ZrB2-ZrN ceramics by reactive hot pressing. J Eur Ceram Soc, 2015, 16: 4399–4410

    Article  Google Scholar 

  7. 7

    Jia D, Liang B, Yang Z, et al. Metastable Si-B-C-N ceramics and their matrix composites developed by inorganic route based on mechanical alloying: Fabrication, microstructures, properties and their relevant basic scientific issues. Prog Mater Sci, 2018, 98: 1–67

    Article  Google Scholar 

  8. 8

    Lee S H, Weinmann M. Cfiber/SiCfiller/Si-B-C-N matrix composites with extremely high thermal stability. Acta Mater, 2009, 57: 4374–4381

    Article  Google Scholar 

  9. 9

    Ding Q, Ni D, Jiang Y, et al. Ablation behavior and mechanism of Cf/SiBCN composites in plasma ablation flame. J Am Ceram Soc, 2019, 2: 1321–1331

    Google Scholar 

  10. 10

    Ding Q, Ni D, Wang Z, et al. Effect of interphase on mechanical properties and microstructures of 3D Cf/SiBCN composites at elevated temperatures. J Am Ceram Soc, 2019, 102: 3630–3640

    Article  Google Scholar 

  11. 11

    Miao Y, Yang Z, Wang W, et al. Microstructure and thermal shock behavior of sol-gel introduced ZrB2 reinforced SiBCN matrix. J Sol-Gel Sci Technol, 2018, 86: 365–373

    Article  Google Scholar 

  12. 12

    Ding Q, Ni D, Wang W, et al. 3D Cf/SiBCN composites prepared by an improved polymer infiltration an pyrolysis. J Adv Ceram, 2018, 7: 266–275

    Article  Google Scholar 

  13. 13

    Li Y T. The mechanical properties, thermal shock resistance and ablation resistance of (Cf-SiCf)/SiBCN composites (in Chinese). Dissertation for Master Degree. Harbin: Harbin Institute of Technology, 2014

    Google Scholar 

  14. 14

    Lee S H, Weinmann M, Aldinger F. Processing and properties of C/Si-B-C-N fiber-reinforced ceramic matrix composites prepared by precursor impregnation and pyrolysis. Acta Mater, 2008, 56: 1529–1538

    Article  Google Scholar 

  15. 15

    Wang J Y, Duan X M, Yang Z H, et al. Ablation mechanism and properties of SiCf/SiBCN ceramic composites under an oxyacetylene torch environment. Corros Sci, 2014, 82: 101–107

    Article  Google Scholar 

  16. 16

    Zhang P, Jia D, Yang Z, et al. Influence of ball milling parameters on the structure of the mechanically alloyed SiBCN powder. Ceramics Int, 2013, 39: 1963–1969

    Article  Google Scholar 

  17. 17

    Yang Z H, Jia D C, Duan X M, et al. Effect of Si/C ratio and their content on the microstructure and properties of Si-B-C-N ceramics prepared by spark plasma sintering techniques. Mater Sci Eng-A, 2011, 528: 1944–1948

    Article  Google Scholar 

  18. 18

    Zhang P, Jia D, Yang Z, et al. Physical and surface characteristics of the mechanically alloyed SiBCN powder. Ceramics Int, 2012, 38: 6399–6404

    Article  Google Scholar 

  19. 19

    Liang B, Jia D, Liao X, et al. Microstructural evolution of amorphous Si2BC3N nanopowders upon heating at high temperatures: High pressures reverse the nucleation order of SiC and BN(C). J Am Ceram Soc, 2018, 101: 4321–4330

    Article  Google Scholar 

  20. 20

    Beche E, Balat-Pichelin M, Flaud V, et al. XPS and AES studies of UHTC ZrB2-SiC-Si3N4 treated with solar energy. Surf Interface Anal, 2014, 46: 817–822

    Article  Google Scholar 

  21. 21

    Dupin J C, Gonbeau D, Vinatier P, et al. Systematic XPS studies of metal oxides, hydroxides and peroxides. Phys Chem Chem Phys, 2000, 2: 1319–1324

    Article  Google Scholar 

  22. 22

    Zhang P, Jia D, Yang Z, et al. Crystallization and microstructural evolution process from the mechanically alloyed amorphous SiBCN powder to the hot-pressed nano SiC/BN(C) ceramic. J Mater Sci, 2012, 47: 7291–7304

    Article  Google Scholar 

  23. 23

    Liang B, Yang Z H, Jia D C, et al. Amorphous silicoboron carbonitride monoliths resistant to flowing air up to 1800°C. Corrosion Sci, 2016, 109: 162–173

    Article  Google Scholar 

  24. 24

    Miao Y, Zhang F, Yang Z, et al. Incorporation of BN-coated carbon fibers into ZrB2/SiBCN ceramic composites and their ablation behavior. J Eur Ceramic Soc, 2020, 40: 1078–1085

    Article  Google Scholar 

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Corresponding authors

Correspondence to DaXin Li or DeChang Jia.

Additional information

This work was supported by the National Key Research and Development Program of China (Grant Nos. 2017YFB0703200, 2017YFB0310400), the National Natural Science Foundation of China (Grant Nos. 51621091, 51472059, 51225203 & 51272300), and the Postdoctoral Innovative Talents Support Program (Grant No. BX20190095).

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Zhu, Q., Wang, G., Liao, X. et al. Effects of Zr and chopped C fiber on microstructure and mechanical properties of SiBCN ceramics. Sci. China Technol. Sci. (2020). https://doi.org/10.1007/s11431-020-1657-7

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Keywords

  • SiBCN
  • ZrB2
  • ZrN
  • carbon fiber
  • BN coating
  • chemical bond
  • microstructure
  • mechanical properties
  • fracture
  • toughening