WEDM Studies on TiB2-15% SiC Ceramic Composite Processed Through SPS Process

  • K. JayakumarEmail author
Conference paper
Part of the Lecture Notes on Multidisciplinary Industrial Engineering book series (LNMUINEN)


Ceramic matrix composites (CMCs) are also known as the advanced ceramics or synthetic ceramics, because the major constituent of CMC is basically synthetically produced ceramic material such as oxide, carbides, titanates. In the present study, TiB2 microparticle was chosen as a matrix and SiC as reinforcement. The method selected for the consolidation and fabrication of CMC in this work is Spark Plasma Sintering (SPS) furnace at IIT, Madras. Synthesis and characteristics study on TiB2 matrix and SiC reinforcement with varying volume% of 0, 5, 10, and 15 vol.% produced using the SPS furnace at 1100 °C, 40 MPa, and 10 min hold of time as the initial study. Among four processed CMCs, the CMC with 15% SiC gave good fracture toughness of 6.3 MPa√m and hardness of 22.1°GPa. Due to difficulty in machining of CMCs from conventional machining processes, Wire Electric Discharge Machining (Wire EDM) studies study was carried out on TiB2-15% SiC CMC by varying Current (2, 3, and 4 A), Pulse ON (30, 60, and 90 µs) and Pulse OFF time (5, 10, and 15 µs). Results showed that at 4A current, 60 µs Ton, and 5 µs Toff gave maximum MRR of 0.621 mm3/sec. To reduce material wastage during machining, kerf is considered for which 3A current, 90 µs Ton, and 5 µs Toff gave least kerf of 0.28 mm for the initial wire diameter of 0.25 mm.


TiB2-SiC CMC Spark plasma sintering WEDM study MRR Kerf 


  1. 1.
    Cheloui, H., Zhang, Z., Shen, X., Wang, F., Lee, S.: Microstructure and mechanical properties of TiB–TiB2 ceramic matrix composites fabricated by spark plasma sintering. Mater. Sci. Eng. A 528(10–11), 3849–3853 (2011)CrossRefGoogle Scholar
  2. 2.
    Bhaumik, S.K., Divakar, C., Singh, A.K., Upadhyaya, G.S.: Synthesis and sintering of TiB2 and TiB2–TiC composite under high pressure. Mater. Sci. Eng. A 279(1–2), 275–281 (2000)CrossRefGoogle Scholar
  3. 3.
    Zhao, G., Huang, C., Liu, H., Zou, B., Zhu, H., Wang, J.: Microstructure and mechanical properties of TiB2–SiC ceramic composites by reactive hot pressing. Int. J. Refract. Met. Hard Mater. 42, 36–41 (2014)CrossRefGoogle Scholar
  4. 4.
    Huang, J.-L., Nayak, P.K.: Strengthening alumina ceramic matrix nanocomposites using spark plasma sintering, In: Woodhead Publishing Series in Composites Science and Engineering, pp. 231–247 (2018)Google Scholar
  5. 5.
    Kumar, R., Chaubey, A.K. Maity, T., Prashanth, K.G.: Mechanical and tribological properties of Al2O3–TiC composite fabricated by spark plasma sintering process with metallic (Ni, Nb) binders. Met. Open Access Metall. J. 8(50), 1–12 (2018)CrossRefGoogle Scholar
  6. 6.
    Karthiselva, N.S., Kashyap, S., Yadav, D., Murty, B.S., Bakshi, S.R.: Densification mechanisms during reactive spark plasma sintering of Titanium diboride and Zirconium diboride. Philos. Mag. 97(19), 1588–1609 (2017)CrossRefGoogle Scholar
  7. 7.
    Saha, N., Chakraborty, S., Dey, P.P., Das, P.K.: Machining of ZrB2-SiC composites by Wire-EDM technique. Trans. Indian Ceram. Soc. 73(2), 94–97 (2014)CrossRefGoogle Scholar
  8. 8.
    Kung, K.-Y., Chiang, K.-T.: Modeling and analysis of machinability evaluation in the wire electrical discharge machining (WEDM) process of aluminum oxide-based ceramic. Mater. Manuf. Process. 23(3), 241–250 (2008)CrossRefGoogle Scholar
  9. 9.
    Bobbili, R., Madhu, V., Gogia, A.K.: An experimental investigation of wire electrical discharge machining of hot-pressed boron carbide. Defence Technol. 11(4), 344–349 (2015)CrossRefGoogle Scholar
  10. 10.
    Gupta, P., Khanna, R., Gupta, R.D., Sharma, N.: Effect of process parameters on kerf width in WEDM for HSLA using response surface methodology. J. Eng. Technol. 2(1), 1–6 (2012)CrossRefGoogle Scholar

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© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringSSN College of EngineeringKalavakkam, ChennaiIndia

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