Preparation of Nickel-Based Al₂O₃-TiB₂ Composite Ceramic Powder

Abstract:

Effect of 10% Ni on synthesis of Al₂O₃-TiB₂ Composite ceramic powder during the mechanical alloy. X-ray diffraction phase analysis (XRD) and scanning electron microscope (SEM) were used to study the phase and morphology of particles which ball milling different time. The results show that: when adding 10%Ni, it generates Al₂O₃, TiB₂ ceramic phase after 20h; In the process of mechanical alloying, the powder particles can agglomerate and then break up. It will accelerate the powder agglomeration for Ni is absorbed on the surface of Al particles, thus shorten the diffusion distance of the atom and accelerate the solid state reaction.

• Periodical: Advanced Materials Research (Volume 1095)
• Pages: 20-23
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1095.20
• Online since: March 2015
• Authors: Feng Xu, Xiao Ping Zhou*, Ying Ze Fang
• Keywords: Al₂O₃-TiB₂, Ceramic Composites, Mechanical Alloying, Nickel-Based Ceramics

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