2003•Unpublished venueRequires access

Preparation of Al_2O_3 powder with nano-NiAl_2O_4 coating

Tao Liu, Jian Li

Abstract

Al_2 O_3 powder with nano-NiAl_2 O_4 coating was prepared by oxidizing at high temperature. This process was that nano-Al_2O_3 powder was coated with Ni by electroless,and the Ni/Al_2O_3 powder was calcined at 1350 ℃. TEM observation of Ni/Al_2O_3 powder shows the particle shape of Ni/Al_2O_3 is globe with size of 50～60 nm. DTA analysis of Ni/Al_2O_3 powder shows that NiO is prepared at 900 ℃ and NiAl_2O_4 is prepared at 1300 ℃.

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Key concepts: Nial, Materials science, Calcination, Non-blocking I/O, Metallurgy, Coating, Nano-, Particle size