A Novel Approach to Prepare Ni-Coated TiB₂ Cermet

Abstract:

A novel approach was developed to prepare Ni-coated TiB2 cermet. Fine Ni particles with mean particle size of about 80 nm were impacted onto coarse TiB2 particles having a mean size of about 5 μm to form Ni-coated TiB2 powder by Hybridization. The conventional blended TiB2-Ni powder, as well as Ni-coated TiB2 powder, was sintered by hot pressing (HP) method and Spark Plasma Sintering (SPS) method. Compared with the conventional blended TiB2-Ni cermet, particle features and mechanical properties of the Ni-coated TiB2 cermet were investigated. The microstructure analysis reveals that the thickness of Ni film is around 4 nm. It is concluded that the mechanical properties of Ni-coated TiB2 cermet are superior to the blended TiB2-Ni cermet.

• Periodical: Key Engineering Materials (Volumes 336-338)
• Pages: 1517-1520
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.336-338.1517
• Online since: April 2007
• Authors: Zhou Fang, Zheng Yi Fu, Hao Wang, Wei Min Wang, Qing Jie Zhang
• Keywords: HP, Hybridisation, Ni-Coated TiB₂ Cermet, Spark Plasma Sintering (SPS)

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