Articles
  • Corrosion behavior and creepage discharze character for machinable AlN/h-BN ceramic composites
  • Hai-yun Jina,*, Bo Hea, Nai-kui Gaoa , Zong-ren Penga, Ji-qiang Gaob
  • a State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, P. R. China b State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, P. R. China
Abstract
AlN particles coated with nano-BN were synthesized. The AlN/BN ceramic composites were sintered by Plasma Active Sintering (PAS). Because the nano-BN crystals were homogeneously dispersed around the AlN grains of the matrix, the chemical corrosion resistance of AlN/nano-sized h-BN ceramic composites was higher than that of AlN/micro-sized h-BN ceramic composites and monolithic AlN ceramics. Due to the better hydrophobic property of h-BN, the AlN/BN composites had a better hydrophobic property than the monolithic AlN ceramic, at the same time, because of the homogeneous dispersion of the nano-BN, the creepage discharze voltage of AlN/nano-sized BN composites was the highest.

Keywords: AlN, h-BN, Corrosion, properties, hydrophobic

This Article

  • 2008; 9(5): 526-529

    Published on Oct 31, 2008

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