The result indicates that the surface of nickel powder is coated by amorphous membrane of SiO2.Nickel powder coated with SiO2 has better hydrophobe and dispersion behavior. Its acid resistance and oxidation resistance are improved.

• 结果表明:S iO2以不定型态包覆在超微镍粉的表面,二氧化硅包覆改善了镍粉的分散性和疏水性,并提高了镍粉的耐酸性和抗氧化性。