J. Mater. Sci. Technol. ›› 2017, Vol. 33 ›› Issue (10): 1172-1176.DOI: 10.1016/j.jmst.2017.05.012

• Orginal Article • Previous Articles     Next Articles

Fabrication of laminated TiB2-B4C/Cu-Ni composites by electroplating and spark plasma sintering

Wu Ziyi, Zhang Jinyong, Shi Taojie, Zhang Fan*(), Lei Liwen, Xiao Han, Fu Zhengyi   

  1. State Key Lab of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
  • Received:2017-02-11 Revised:2017-04-23 Accepted:2017-04-25 Online:2017-10-25 Published:2018-01-25
  • Contact: Zhang Fan
  • About author:

    1 These two authors contributed equally to this paper.

Abstract:

We proposed a new method, electroplating followed by spark plasma sintering (SPS), to fabricate laminated TiB2-B4C/Cu-Ni composites with high strength and high toughness. It is found that a thin intermediate Cu layer can effectively enhance the strength of the interface between the ceramics and the metals, resulting in a high flexural strength and toughness of the laminated TiB2-B4C composites simultaneously. A flexural strength and fracture toughness of 651 MPa and 11.6 MPa m1/2 respectively, are achieved, an approximately 90% improvement over TiB2-B4C bulk.

Key words: Laminated structure, Electroplating, Spark plasma sintering, B4C ceramic